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APPROVED ENGINE SEALERS ................................................................................................................... 4 CONTROL ECU’S AND APPROVED SUPPLIERS......................................................................................... 6 RACING NUMBER UPDATES ..................................................................................................................... 8 T7-1-1(c): Three-digit Number Policies ................................................................................................. 8 ELECTRONIC LAPSCORING CLARIFICATIONS .......................................................................................... 9 E4-4-8: ELS - Manual Backup Required ................................................................................................ 9 FUEL AND FUEL TANK CLARIFICATIONS ................................................................................................ 10 E5-1-1(i): Approved Fuels .................................................................................................................... 10 SEATBELT CLARIFICATIONS.................................................................................................................... 11 HANS –specific seatbelts .................................................................................................................... 11 S4-2-3: Open Wheel Seat Belts ........................................................................................................... 11 Seat Belts of more than 5 points ........................................................................................................ 11 WHEEL CLARIFICATIONS......................................................................................................................... 12 T14(b): Wheel Stamping ID ................................................................................................................. 12 T14(b): Wheel stamping clarification ................................................................................................. 12 APPROVED WHEEL REGISTER ................................................................................................................ 13 T14-6-1(a): D Window .......................................................................................................................... 13 T14-6-1(b): Bassett Wheel................................................................................................................... 13 T14-6-1(c): Wide 5 centres .................................................................................................................. 13 T14-6-1(d): Nissan Navara ................................................................................................................... 14 T14-6-1(e): Desert Rat/Lightening ..................................................................................................... 14 Addis Starlite ....................................................................................................................................... 14 Addis D Window ................................................................................................................................... 14 Corsa .................................................................................................................................................... 15 Elite Wheel Approvals.......................................................................................................................... 15 Mangels Modular ................................................................................................................................. 17 EXAMPLES OF WHEELS NOT APPROVED FOR USE ............................................................................... 18 Corsa Copy (Trailer Wheel) .................................................................................................................. 18 Corsa Copy (Not fully welded) ............................................................................................................. 18 T14-6-1(k) Holden HK .......................................................................................................................... 18 JT Presley.............................................................................................................................................. 19 Mitsubishi 4WD.................................................................................................................................... 19 Unapproved 10 window ....................................................................................................................... 19 GENERAL TECHNICAL CLARIFICATIONS ................................................................................................ 20 Contracting to Two Tracks .................................................................................................................. 20 Cellphones in Cars Not Permitted ...................................................................................................... 20 Definition of a Vehicle ......................................................................................................................... 21 Steel Thickness – All Classes ............................................................................................................. 21 T12-1-5: Floorboard and Drive shaft requirements ............................................................................ 22 T12-1-6(h): Additional rollcage barwork ............................................................................................. 23 T12-1-6(k): Superstock Tanks ............................................................................................................. 23 T12-1-8(a): Roof Plates and Rollcages ............................................................................................... 24 T12-1-9(b): Approved Seats ................................................................................................................. 24 T12-1-16(l): Under-rider bars ............................................................................................................... 24 T12-1-17: Trial Engine ......................................................................................................................... 25 T12-1-19(c): Dispensation for American Racer/McCreary ............................................................... 25 2


T12-1-19(c): Dispensation for Goodyear ............................................................................................. 26 T12-1-27: Oil Line Dispensation .......................................................................................................... 26 S2-4-1(e): Seatbelts to Swivel ............................................................................................................. 27 E5-4-2: Fuel Tank Filler Necks ............................................................................................................ 27 STOCKCAR CLARIFICATIONS .................................................................................................................. 28 T12-2-6(h): Additional rollcage barwork ............................................................................................. 28 T12-2-6(k): Stockcar Tanks ................................................................................................................. 28 T12-2-8(a): Roof Plates and Rollcages ............................................................................................... 29 T12-2-9(b): Approved Seats ................................................................................................................. 29 T12-2-16(l): Under-rider bars ............................................................................................................... 29 T12-2-17(h): Approved Manifold Package .......................................................................................... 30 T12-2-19(a): Exhaust Coating ............................................................................................................. 31 S4-4-1(e): Seatbelts to swivel ............................................................................................................. 31 E5-4-2: Fuel Tanks ............................................................................................................................... 31 STREETSTOCK CLARIFICATIONS ............................................................................................................ 32 T13-1-9(g): Side Impact Protection .................................................................................................... 32 T13-1-12(f): Radiator Protection Mesh............................................................................................... 32 T13-1-27(c): Carburettors .................................................................................................................... 33 SUPER SALOON RULE CHANGE .............................................................................................................. 34 T11-1-9(g): Plastic Panels ................................................................................................................... 34 SALOON CLARIFICATIONS ....................................................................................................................... 35 T11-2-3(f): Approved Cylinder Heads .................................................................................................. 35 T11-2-5(c): Carburettor Specifications Published.............................................................................. 35 T11-2-19: Adjustable Shocks .............................................................................................................. 36 MIDGET CLARIFICATIONS ....................................................................................................................... 37 T10-1-3(b): Full Containment Seats .................................................................................................... 37 T10-1-7(n): Side Panels ....................................................................................................................... 37 E4-2: Electronic Fuel Injection not permitted .................................................................................... 37 TQ CLARIFICATIONS ................................................................................................................................ 38 T10-2-2(k)(vii): Trial Approved ............................................................................................................. 38 T10-2-20(p): Side Panels ..................................................................................................................... 38 SPRINTCAR CLARIFICATIONS ................................................................................................................. 39 T10-3-4(j): Approved Sprintcar Seats.................................................................................................. 39 T10-3-8(h): Side Panels ....................................................................................................................... 39 MINISPRINT CLARIFICATIONS ................................................................................................................ 40 T10-4-3: Trial Approved ....................................................................................................................... 40 T10-4-9(p): Side Panels ....................................................................................................................... 40 MODIFIED CLARIFICATIONS ................................................................................................................... 41 T11-3-10(e): Approved Engine Blocks ................................................................................................ 41 T11-3-12(i): Throttle Return Springs ................................................................................................... 41 MINISTOCK CLARIFICATIONS ................................................................................................................. 42 T15-1: Van Parts Not Permitted .......................................................................................................... 42 T15-1-1(b): Bodywork Clarity ............................................................................................................... 42 T15-1-1(e): Windscreen Mesh ............................................................................................................. 43 T15-1-5(b): Head Plate Clarified ......................................................................................................... 43 T15-1-14: Rear Brakes ........................................................................................................................ 44 New Competitors to be identified ....................................................................................................... 44 DEMOLITION DERBY CLARIFICATIONS ................................................................................................... 45 D1-1-8: Seat Belts................................................................................................................................ 45 APPENDIX: SALOON AND SUPER SALOON BODY INFORMATION.......................................................... 46

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Updated: November 2011 Note: All Head Scrutineers and Technical Stewards are also approved engine sealers NORTH ISLAND Northland  Henwood Automotive, (Tony) 89 Port Road WHANGAREI (09) 438 3669 Auckland  Ron Willoughby, Willoughby Reconditioners P O Box 33 781, Takapuna (09) 479 1552 OR The Car Shop, 28 Parkway Drive, Mairangi Bay  Paul Le Cren, 15 Triangle Road, Massey 027 618 4044 (1/4 + TQ midgets)  Dave Tennant, Southpac Trucks, 96 Wiri Station Road, Manukau (09) 262 3181  Craig Thompson, (Mooney Bros) 107 Mountain Road, Panmure (09) 570 4666  Ken Tyson, Zen Automotive, 78 Delta Ave, New Lynn (09) 827 1997, 027 536 0055  Vic Neal, Northern Racing & Performance Autos  Angus McLeod, Garage 9 Ltd, 29 Kitchener Road, Waiuku (09) 235 5056 (027) 246 8342 Waikato  John Entwisle, Hamilton Cylinder Head & Eng Services, 40 Lake Rd, Frankton, Hamilton (07) 847 8470  Ron Chatfield, Motor Preparations Ltd 72 Otewa Road OTOROHANGA (07) 873 7319  Danby Machine & Development Ltd, 307 Cochrane Street THAMES (07) 868 8284 Bay of Plenty  Jason McComb, 17 Thoroughbred Place, Papamoa TAURANGA 0274 395 551  Flowtech Race Engines (Trevor) 97 Taniwha Place Bethleham TAURANGA (07) 576 8168  Ashley Reid, 9 Sylvania Drive, Matua, TAURANGA, (07) 5710100, 027 442 4442  Ray Channing, Reconz Auto Machinists, 71 Riri Street, ROTORUA, (07) 349 4212  Mel Hills, ROTORUA, (07) 346 0733 or 027 204 3303  Terry O’Connor, 17 Upland Road, ROTORUA (07) 348 7802  Pat Westbury, C/- Titan Plant, Miro Street, TAUPO (07) 378 8204 Hawkes Bay  Roger Young, 12 Hammond Road Taradale, Napier (06) 844 2737  Andy McCabe, 49 Dundee Drive Flaxmere, Napier (06) 879 9614  Aaron Iremonger, Waipukurau, 027 550 5269 Taranaki  Engine Rebuilders (Garry O’Sullivan) 66a Molesworth Street, New Plymouth (06) 758 5263  Taranaki Motor Reconditioners,487B Devon Street East, New Plymouth (06) 758-5239 (Jeff or Kerry)  Craig Bennett, Hawera Automotive 84 Union Street, Hawera (06) 278 5025 Wanganui  Russell Hausman C/- BP Wanganui East, Cnr Anzac Parade & Jones Street (0800 207 207) Manawatu  Jim Barr C/- 36 Princess Street, Palmerston North (06) 358 8838  Edward Bambery, 19 Robbie Street, Foxton (06) 363 7823  Graham Miller, B & H Engine Services, 298 Broadway Ave, Palmerston North Ph (06) 357 1182 4


 Bryan Hartley, The Head Shop, 26 Domain Street, Palmerston North 027 444 3213 Wellington  Martin Halcrow, Halcrow Engineering, 6 Holland Crescent, Naenae, Lower Hutt (04) 567 7099  Kerry Lindsay, Kerry Lindsay Engine Reconditioning, 12 Regent Street, Petone (04) 568 5803 SOUTH ISLAND Marlborough  Graham Morrison, Midwest Motors, 273 Dillons Point Road, BLENHEIM (03) 578 5739 Canterbury ��� Glen Durie Engine Reconditioners, PO Box 19538 Woolston, Christchurch (03) 384 1509  Gavin Hill, HPE Automotive Services, 29 Battersea Street, Sydenham, Christchurch (03) 379 4166 Otago  Arthur McGregor Services, 40 Marshall Street, Bradford, DUNEDIN (03) 453 6944  John Gamble, 72 Cutten Street, South Dunedin, DUNEDIN (027) 752 7764  Mike Lynn, The Turbo Shop, 593 Princes Street, DUNEDIN (03) 477 3148 Southland  Gary Harding, 37 Brown Street, INVERCARGILL (027) 388 6363

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Option One: ECS First Published: Meeting 172 Date Published: November 2009 Last Updated: November 2011 Relevant Rule: E4-2(h) Speedway New Zealand has entered into an agreement with Engine Control Systems Limited (ECS) to supply control computers for use in the sport. The option for competitors to utilise a control ECU was introduced at the June 2009 AGM, and a high standard of applications were subsequently submitted to SNZ by interested parties. A control computer is of benefit in classes such as Stockcars, where a competitor has previously needed to spend a lot of time and money to modify a computer out of a road car to make it suitable for speedway use. Two ECU options are available, depending on the individual requirements of the competitor. One ECU option is to control ignition only, the second to control ignition and electronic fuel injection only. The units are being marketed by ECS and their preferred suppliers. Pricing is fixed throughout the country, as agreed with SNZ, and details of the retail outlets are included below. The units themselves are clearly labelled as SNZ approved computers, and are tamper proof to discourage illegal modification of the units. Testing equipment is being provided to enable SNZ to inspect ECU’s at any time, and verify their compliance and legality with the regulations. Suppliers of ECS SNZ Control ECU’s as at 1 November 2010 Hamilton Tuning And Performance 223 Ellis St Frankton, Hamilton Ph 07 846 6546 John Butler

Christchurch Wirelink Ltd 7/37 Washbourne Rd Sockburn Ph 03 341 7070 Chris Woods

Palmerston North The Head Shop 26 Domain St Palmerston Nth Ph 06 355 5070 Bryan Hartley

Dunedin Turbo Shop 578 Princes St Dunedin Ph 03 477 3148 Mike Lynn

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Option Two: Link ECU First Published: Meeting 194 Date Published: October 2011 Relevant Rule: E4-2(h) Link ECU have signed an agreement to become Speedway NZ’s second approved Control ECU supplier in the classes where such ECU’s are permitted. Link will retail the four models of speedway-specific branded ECU’s directly to SNZ members through their agreed retail outlets nationwide, with prices as below. Note that all prices include a standard 2.5m wiring loom. Lightning - Ignition Only = $1,365 +GST Atom - Ignition and Fuel Injection = $1,365 +GST Storm - Ignition and Fuel Injection = $1,550 +GST Extreme - Ignition and Fuel Injection = $1,950 +GST Current Link ECU dealers are as follows, with full details available at the following web address, www.linkecu.com/dealers/dealersnz Auckland:

Hi Tech Motorsport (Drury) 09 294 6001 Torque Performance (Avondale) 09 828 7054 Auckland Performance (Papakura) 09 298 6105

Hamilton:

Tuning & Performance Centre 07 846 6546 The Cartune Company 2003 07 847 9969

Morrinsville:

Udy Automotive (Lorne Street) 07 889 0599

Tauranga:

PF Automotive (Judea) 07 578 0479 D-Tech MotorSport (Roxanne Place) 07 544 0087 DynoPower (Birch Avenue) 07 578 3332

Rotorua:

Infomotive (Maisey Place) 07 349 3032

Taranaki:

Dobsons Dyno Tune (Waitara) 06 754 8336

Napier:

WRC Developments (Onekawa) 06 843 8430

Palm North:

SpeedWorks NZ (Rangitikei St) 06 354 8863

Wellington:

Speedtech Motorsport (Seaview) 04 586 6384 Shred Motorsport (Melling) 04 569 7469

Christchurch:

NZ EFI (Mowbray Street) 03 377 5447

Timaru:

Linktec (Falvey Road) 027 439 8129

Dunedin:

Turbo Shop (Princes Street) 03 477 3148

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T7-1-1(c): Three-digit Number Policies First Published: Meeting 160 Date Published: October 2008 Relevant Rule: T7-1-1(c) a) There is a one-off $50 fee for the initial approval of a three-digit number. b) The request for a three-digit number has to come via your track, who are required to pre-approve the use of the number. They will be invoiced for the fee, and may choose to onchange this to you. c) Numbers beginning with zero (0) are not allowed d) Numbers 100, 101, 110, & 111 are not allowed e) The same number can be used by a total of three different competitors. The office is now keeping separate databases for the following groups of classes, and each number may be allocated once within the three groups. (i) Stockcars & Superstocks (ii) Saloons, Super Saloons, Modifieds & Streetstocks (iii) Adult Ministocks, Youth Ministocks & Production Saloons The upshot of this is that for example there can be separate competitors registered as 112 in both Saloons and Superstocks, but not in Stockcars and Superstocks. f) Three-digit numbers are no longer being issued in Motorcycle or Open Wheel classes, due to the lack of space on the machine. Please contact the SNZ Office to confirm if the number you want is still available in your class.

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E4-4-8: ELS - Manual Backup Required First Published: Meeting 173 Date Published: December 2009, updated with new rule number June 2011 Relevant Rule: E4-4-8 Electronic lapscoring is a vital part of a race meeting, and assumes even greater importance at championship meetings. Tracks are reminded that additional assistance is available at any time from a network of trained ELS specialists, who can be contacted via the SNZ Office. All tracks hosting SNZ allocated titles are also reminded that a Manual backup via a number caller and tape is required at all Allocated title meetings, as per Rule E4-4-8.

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E5-1-1(i): Approved Fuels First Published: Meeting 162 Date Published: January 2009 Updated: June 2011 Relevant Rule: E5-1-1(i) As at 1 January 2009, some of the fuels conforming to these specifications (and approved for use as petrol by SNZ) are:BP 91 Octane BP 95 Octane BP Ultimate Caltex Regular with Techron Caltex Premium with Techron Challenge 91 Unleaded

Challenge 95 Unleaded Gull Regular Gull Regular + Gull Premium Gull Force 10 Mobil Synergy 1000

Mobil Synergy 5000 Mobil Synergy 8000 Mobil E3 Mobil E10 Shell Unleaded Shell V-Power

This is not an exhaustive list, but does cover all supplies from the 6 major retail outlets.

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HANS –specific seatbelts First Published: Meeting 172 Date Published: November 2009 Date Updated: June 2011 Relevant Rules: S4-4-1 and relevant classes SNZ has approved the use of HANS-specific seatbelts that feature a 50mm shoulder belt to enable a better fit with the HANS device.

(2”)

The belts are manufactured by Schroth, are SFI 16.1 rated, and can be used conjunction with a HANS device in all relevant SNZ classes.

in

The specific manufacturers approved for use by Speedway New Zealand are Schroth (SFI 16.1 Latchlink III-V HANS Shoulders), Crow and Impact Racing.

S4-2-3: Open Wheel Seat Belts First Published: Meeting 160 Date Published: October 2008 Last Updated: June 2011 Relevant Rule: S4-2-3 There is a requirement in most speedway classes that the seatbelts must be anchored within 250mm of the back of the seat. However, this measurement may not be appropriate in all instances for Open Wheelers, and indeed neither the SFI or other overseas sanctioning bodies have such a requirement. Consequently, many cars currently competing in New Zealand do not comply with SNZ rule S2-2-3, and modifying the vehicles to suit may cause additional safety issues. Therefore, the mounting of Open Wheel seatbelts must comply with either Manufacturers recommendations, or Section S4-2-3 of the 2011 Rulebook (pages 88-90).

Seat Belts of more than 5 points First Published: Meeting 156 Date Published: May 2008 Relevant Rule: As per each class Following a request to run a 7-point harness in a Superstock, the Directors have moved that any seatbelts that exceed the minimum standard as defined in the rulebook are acceptable upon application to Speedway NZ. All installations must be as per the Manufacturer’s recommendations.

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T14(b): Wheel Stamping ID Wheels stamped by Vehicle Checkers have the following identifying codes:2011/12 2010/11 2009/10 2008/09 2007/08 2006/07

T6 T5 T4 T3 T2 T1

T14(b): Wheel stamping clarification First Published: Meeting 172 Date Published: November 2009 Relevant Rule: T14(b) The stamping of wheels is an important compliance issue, with the standard life of an OEM steel road wheel being three years. Hence there is a need to stamp the wheel to ascertain how long the wheel has been in use on a speedway track. It has been drawn to SNZ’s attention that the lifespan of the OEM road wheel is being measured by two different methods, so there is a need to clarify the interpretation of Rule T14(b) to ensure standardisation across the country. T14(b)

The life expectancy of OEM steel road wheels is three years. OEM steel road wheels must not be used after three years use.

Three years of use is defined as three seasons of use when stamped, not three years from the first time the wheel is stamped. A wheel stamped twice then stored away for a year or two still has one season of use left in it.

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T14-6-1(a): D Window The 'D Window' wheel centre, both 6-pin and 5 stud, as manufactured by INTERO is approved for Modifieds, Super Saloons, Stockcars and Superstocks, provided all existing offsets as described in these rules are maintained.

T14-6-1(b): Bassett Wheel The Bassett Dot Approved Street Legal Racing Wheel 15” x 7” is approved for Superstocks and Stockcars. The wheel must be used as manufactured and fit to the hub as per manufacturers specifications, ie 5/8 studs and 1”, 45 degree lug nuts.

T14-6-1(c): Wide 5 centres Two imported pressed steel wide 5 wheel centres are approved provided wheel assemblies are welded to comply with NZS 4701 class 4, and operators to comply with NZS 4711 in the appropriate position. The fluted centre is approved for left rear and front wheels only.

Left image is for left rear and front only. Right image is applicable all Modified and Super Saloon wheels.

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T14-6-1(d): Nissan Navara Nissan Nivara J.l.S. D4103 approved for Superstocks and Stockcars. Note: JIS D4103 is a Japanese Standard, it is not a model of wheel. The Navara was introduced in 1986, and this rule was passed in 1998.

T14-6-1(e): Desert Rat/Lightening The Desert Rat/Lightening serial number 1947 approved for all classes to the following specifications: (Refer Diagram) D=7mm, E=65mm, F=35mm, G=178mm

D

F E G 3.0

Addis Starlite Approved January 2002. To be indent stamped with the certificate number 21-276

Addis D Window Approved January 2002. To be indent stamped with the certificate number 20-276

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Corsa Approved January 2008. 15x7 8 spoke 6mm wheel centre with an offset of 103mm Identifying Marks: Stamped with PW01 or PW25 or R&K23

Elite Wheels 1 To be stamped with the approved Elite Wheels logo (right).

Elite Wheels 2 To be stamped with the approved Elite Wheels logo (right).

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Elite Wheels 3 To be stamped with the approved Elite Wheels logo (right).

Elite Wheels 4 To be stamped with the approved Elite Wheels logo (right).

Elite Wheels 5 To be stamped with the approved Elite Wheels logo (right).

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Elite Wide 5 Approved February 2010, to be stamped with the approved Elite Wheels logo (right).

Elite 8 Hole Approved October 2011, to be stamped with the approved Elite Wheels logo (right).

Mangels Modular Approved November 1994 for Super Saloons, Sprintcars and Superstocks

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Corsa Copy (Trailer Wheel) These wheels are copies of the “Corsa� wheel, and derive from domestic trailers. While the wheel appears identical, it is thinner than the approved Corsa wheel (4.5mm versus 6.4mm) and is not fully welded from the manufacturer, so does not comply on two counts. They are not approved for use in either the Stockcar or Superstock class.

Corsa Copy (Not fully welded) This is not an approved wheel. Welding up the gaps does not make the wheel legal.

T14-6-1(k) Holden HK The use of HK Holden wheels are prohibited by Speedway New Zealand.

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JT Presley Model number 13300STW656

Mitsubishi 4WD

Unapproved 10 window

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Contracting to Two Tracks First Published: Meeting 171 Date Published: October 2009 Updated: June 2011 Relevant Rule: M6-4-2 On the odd occasion, a competitor who races in one or more classes has applied to do so at more than one track. While this may seem acceptable at first glance, it creates problems from a contractual standpoint (would the competitor require two clearances to enter a national title for example?), and is also forbidden under SNZ Regulations. All drivers nominate a primary class when they obtain a licence, and to clarify the situation, if their desired secondary class is also offered at their home track, they must contract both classes there. For instance, a Palmerston North Superstock driver who also wishes to race a Stockcar must race both vehicles with a “P� on their car. However, there are some instances where a track may not offer the other class the competitor wishes to race. In that instance, the Directors may approve the request following an application, and the primary class/track has priority regarding clearances and other matters. Using the above example, if the same competitor wished to also race a Modified, they would be permitted to race that vehicle out of the Wellington track, as Palmerston North do not run the class.

Cellphones in Cars Not Permitted First Published: Meeting 160 Date Published: October 2008 Last Updated: June 2011 Relevant Rule: E4-1-1 Reports have been received of drivers carrying cellphones in their race vehicles, and utilising them either in a race, or on the infield once they have retired from the competition. This is strictly prohibited under Section E4 (Electronics) and any competitor caught using a cellphone on the track will be dealt with to the full extent of the Rules & Regulations.

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Definition of a Vehicle First Published: Meeting 163 Date Published: February 2009 Relevant Rules: G13 relevant classes This is a reminder that substitute vehicles are not permitted at any SNZ Allocated title meeting. The Directors have defined a vehicle as the VIN tagged chassis that passes through scrutineering. This enables an engine or wing to be changed over the course of a championship, but not the frame itself.

Steel Thickness – All Classes First Published: Meeting 158A Date Published: August 2008 Relevant Rules: As per relevant class The Manufacturer’s variation on steel is accepted as a tolerance when measuring thickness.

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T12-1-5: Floorboard and Drive shaft requirements First Published: Meeting 160 Date Published: October 2008 Relevant Rules: T12-1-5 and T12-1-25 There has been a request to clarify the position on Superstock/Stockcar floors and the requirement to cover a driveshaft that is within the confines of the cockpit. The relevant rules are as follows:T12-1-5 Floorboards: 3mm plate minimum metal floorboards must be fixed to extend from beneath the rear of the driver's seat to the fire wall, and must contain driver’s feet within the foot well. If the floor is not under the gearbox then gearbox must have a securely fastened metal cover. T12-1-25 Drive Shaft: A drive shaft retaining strap must be fitted under and over the front end of the drive shaft. All drive shafts running through cockpit must be covered by 3mm metal plate cover. The two diagrams illustrate where the prescribed driveshaft tunnel must be for either a flat floor or a stepped floor Stockcar/Superstock. As you can see, the Director’s interpretation is that if a driveshaft is underneath a stepped floor, then it is deemed to be outside the cockpit and no metal plate cover is required. See the diagram below for additional clarification. Yellow = approved floor

Purple = required driveshaft cover

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T12-1-6(h): Additional rollcage barwork First Published: Meeting 174 Date Published: January 2010 Relevant Rule: T12-1-6(h) Many Stockcars and Superstocks have additional rollcage barwork to further protect the driver in the event of another vehicle threatening to enter the cockpit. However, these bars could present a danger in themselves if they are placed too close to the drivers helmet. Anecdotal evidence has been received by the joint Technical Committees, suggesting that a number of competitors may have struck the bars that were intended to protect them. Therefore, all additional rollcage or brace material at or above shoulder height must comply with the minimum internal measurement (381mm) as per Rule T12-1-6(h).

T12-1-6(k): Superstock Tanks First Published: Meeting 171 Date Published: October 2009 Relevant Rule: T12-1-6(k) A joint Technical Committee meeting was held recently to discuss the arrangements for ensuring the compliance of the “Tank� style chassis. The Directors concurred with the recommendations of the Stockcar & Superstock Tech Committees, who discussed the issues that surround these cars, and how best to ensure that their characteristics are retained, while simultaneously maintaining conformity with the rules. The above picture is typical of the design of the vehicles (it shows the left hand side of the cockpit), and the Directors have ruled as follows:A minimum of roll cage material must be fitted either horizontally or vertically under item 'E' as indicated, being the sill area attachment of the roll cage.

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T12-1-8(a): Roof Plates and Rollcages First Published: Meeting 174 Date Published: January 2010 Relevant Rule: T12-1-8(a) Two different types of rollcage roof plate mounting arrangements were recently discussed by a joint Stockcar and Superstock Technical Committee conference call. The top illustration (right) shows a vehicle where the headplate has been curved to comply with rule T12-1-8(a). The lower illustration shows a structure added on top of the rollcage to achieve the minimum head clearance of 100mm. Both configurations have been ruled as non-compliant by the Directors. It has been clarified for both Stockcars and Superstocks that the rear roll bar hoop must be the highest point of the rollcage. In addition, the roofplate must be flat and welded on all four sides. Vehicles not complying with this requirement must be modified before they will be permitted to race.

T12-1-9(b): Approved Seats First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T12-1-9(b) Professionally manufactured seats that don’t meet the construction requirements of Rules T12-1-9 and T122-9 are able to be approved by the SNZ Board, with the details to be listed on the Speedway NZ website. Seats approved for use under these new regulations in the Stockcar & Superstock classes are as follows (they are the same seats that appeared in clause T12-1-9(b) in the 2009 regulations):Racetech: Models 4009, 4009HR, 4009HRV, 9009, 9009HR Kirkey: 64000 Series Open Wheel Full Containment Note that all seat mounting has to be in accordance with the Manufacturer’s instructions. Speedway NZ holds copies of all mounting instructions on file, and can supply them if required.

T12-1-16(l): Under-rider bars First Published: Meeting 183 Date Published: October 2010 Relevant Rule: T12-1-16(l) Some confusion has arisen about the permitted construction of the under-rider bar in these classes. Like rollcages, the bar may be constructed of either pipe or box section, which means a combination of the two materials is acceptable. 24


T12-1-17: Trial Engine First Published: Meeting 186 Date Published: January 2011 Relevant Rules: T12-1-17 Brendan Lucas from Palmerston North has received approved to trial a GM604 Performance V8 factory sealed circle track crate engine, specifically designed in the US for speedway competition. In terms of cubic capacity, the engine is significantly larger than the current regulations allow for, but this may provide advantages in terms of reliability and longevity, and will be monitored closely. The vehicle will not be eligible to enter allocated titles, and the terms and conditions of the trial enable changes to be made (such as imposing additional restrictions or even terminating the trial) if the engines don’t prove to be in the best interest of the class. More details on the Superstock engine are below:        

Horsepower = 400 @ 5500 rpm, Torque = 400 @ 4500 rpm. Max Recommended rpm = 5800 Compression ratio = 9.6:1 Block = 10105123 four bolt main, cast iron Crankshaft = 12556307 Forged steel Connecting Rods = 10108688 powdered metal Pistons = 10159436 high silicon aluminum with offset pins. Piston Rings = 12528817, Moly top, cast second Camshaft = 10185071 hydraulic roller- .474″ intake lift, .510″ Exhaust Lift, Duration @ .050′- 208 Intake, 221 Exhaust,Lobe C/L-112  Cylinder Heads = Fast Burn Aluminum (Similar in design to LT4 Corvette head) 2.00″ hollow stem intake, 1.55″ sodium filled exhaust, 64cc heart shaped chambers  Valve Springs = 12551483 LT4 Chrome Silicon  Intake Manifold = 12496822 Aluminum high rise, Single plane, with square bore carb. bolt pattern  Distributor = NOT INCLUDED  Spark Plugs = Delco MR43LTS or R42LTS gapped at .045″  Fuel = 92 Octane Note : Melonized (hardened) distributor gear must be used on distributor to prevent engine damage.

T12-1-19(c): Dispensation for American Racer/McCreary First Published: Meeting 188 Date Published: March 2011 Last Updated: September 2011 Relevant Rules: T12-1-19(c) The American Racer/McCreary agent has received approval to groove tyres on a trial basis for the 2011/12 season. The tyres must be grooved to the specifications below.

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T12-1-19(c): Dispensation for Goodyear First Published: Meeting 194 Date Published: October 2011 Relevant Rules: T12-1-19(c) Speedway NZ has again given approval to Goodyear to run a tyre testing and trial programme during the 2011/12 season. The tyres will be distributed through The Racing Depot, and are the STS Series. As the tyres are slightly wider than those permitted in the rulebook, the dispensation approval applies to all race meetings other than allocated titles and teams racing. Identification The D number moulded into these tyres is about 20cm wide by 15cm high and will be easily read by SNZ officials. The compound number is quite a bit smaller and in a different place on the tyre however if the D number is right the compound will also be correct. For your info I have included the relevant sizes and compound designations. Front D2945 (27.0 x 8.0 – 15 G45 compound) D2946 (27.5 x 8.0 – 15 G45 compound)

Rear D2965 (27.0 x 8.0 – 15 G65 compound) D2966 (27.5 x 8.0 – 15 G65 compound)

T12-1-27: Oil Line Dispensation First Published: Meeting 196 Date Published: December 2011 Relevant Rules: T12-1-27 It appears that the rules around oil lines in the Superstock class haven’t kept pace with modern technology and current practice. Therefore, two dispensations have been granted for the next two seasons to allow competitors to use readily available oil lines and bulkhead connectors. The relevant rules are as follows:T12-1-27(a) Engine oil lines must be capable of withstanding a pressure of 450psi and a temperature of 230°C. A blanket dispensation has been granted from the above rule to allow oil lines that can withstand a minimum of 350psi. T12-1-27(c) No engine oil line connectors in driver's compartment are permitted, except oil gauge fittings. A blanket dispensation has been granted to the above to also allow the use of commercially manufactured bulkhead connectors in the drivers compartment, provided they can withstand a minimum pressure of 350psi.

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S2-4-1(e): Seatbelts to Swivel First Published: Meeting 163 Date Published: February 2009 Updated: June 2011 Relevant Rule: S4-4-1(e) This is a general reminder that seatbelt rules are there for the protection of the driver, and they must be followed. One area that does cause particular concern is Rule S4-4-1(e), that states that seatbelts must swivel on their mounting points. Stockcar belts require ongoing attention from both competitors and officials, to ensure that best practice becomes the norm rather than a rarity.

E5-4-2: Fuel Tank Filler Necks First Published: Meeting 163 Date Published: February 2009 Updated: June 2011 Relevant Rule: E5-4-2 Fuel tank filler neck extensions are considered part of the fuel tank, and must be constructed of the approved material as per rule E5-4-2 (Steel – minimum thickness 1.2mm).

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T12-2-6(h): Additional rollcage barwork First Published: Meeting 174 Date Published: January 2010 Relevant Rule: T12-2-6(h) Many Stockcars and Superstocks have additional rollcage barwork to further protect the driver in the event of another vehicle threatening to enter the cockpit. However, these bars could present a danger in themselves if they are placed too close to the drivers helmet. Anecdotal evidence has been received by the joint Technical Committees, suggesting that a number of competitors may have struck the bars that were intended to protect them. Therefore, all additional rollcage or brace material at or above shoulder height must comply with the minimum internal measurement (381mm) as per Rule T12-1-6(h) for Superstocks, and T12-2-6(h) for Stockcars.

T12-2-6(k): Stockcar Tanks First Published: Meeting 171 Date Published: October 2009 Relevant Rule: T12-2-6(k) A joint Technical Committee meeting was held recently to discuss the arrangements for ensuring the compliance of the “Tank� style chassis. The Directors concurred with the recommendations of the Stockcar & Superstock Tech Committees, who discussed the issues that surround these cars, and how best to ensure that their characteristics are retained, while simultaneously maintaining conformity with the rules. The above picture is typical of the design of the vehicles (it shows the left hand side of the cockpit), and the Directors have ruled as follows:A minimum of roll cage material must be fitted either horizontally or vertically under item 'E' as indicated, being the sill area attachment of the roll cage.

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T12-2-8(a): Roof Plates and Rollcages First Published: Meeting 174 Date Published: January 2010 Relevant Rule: T12-2-8(a) Two different types of rollcage roof plate mounting arrangements were recently discussed by a joint Stockcar and Superstock Technical Committee conference call. The top illustration (right) shows a vehicle where the headplate has been curved to comply with rule T12-1-8(a). The lower illustration shows a structure added on top of the rollcage to achieve the minimum head clearance of 100mm. Both configurations have been ruled as non-compliant by the Directors. It has been clarified for both Stockcars and Superstocks that the rear roll bar hoop must be the highest point of the rollcage. In addition, the roofplate must be flat and welded on all four sides. Vehicles not complying with this requirement must be modified before they will be permitted to race.

T12-2-9(b): Approved Seats First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T12-2-9(b) Professionally manufactured seats that don’t meet the construction requirements of Rules T12-1-9 and T122-9 are able to be approved by the SNZ Board, with the details to be listed on the Speedway NZ website. Seats approved for use under these new regulations in the Stockcar & Superstock classes are as follows (they are the same seats that appeared in clause T12-1-9(b) in the 2009 regulations):Racetech: Models 4009, 4009HR, 4009HRV, 9009, 9009HR Kirkey: 64000 Series Open Wheel Full Containment Note that all seat mounting has to be in accordance with the Manufacturer’s instructions. Speedway NZ holds copies of all mounting instructions on file, and can supply them if required.

T12-2-16(l): Under-rider bars First Published: Meeting 183 Date Published: October 2010 Relevant Rule: T12-2-16(l) Some confusion has arisen about the permitted construction of the under-rider bar in these classes. Like rollcages, the bar may be constructed of either pipe or box section, which means a combination of the two materials is acceptable. 29


T12-2-17(h): Approved Manifold Package First Published: Meeting 180 Date Published: August 2010 Relevant Rule: T12-2-17(h) Back in October 2008, the Directors approved a Manifold package for use in the Stockcar class (see the Summary of Meeting 160 for more details). A subsequent request to slightly alter the manifold has now also been approved, and the wording of the approved package is now as follows. Changes are in blue. Approved Stockcar Manifold Package – August 2010 Applies to Ford EF, EL and AU Falcon inline 6 cylinder multi point injection manifolds. The following modifications are permitted to the manifold:(1) Material may be removed from the inlet manifold as required, to allow the fitting of an acceptor plate to be welded to the inlet manifold. No other material may be removed or added except as permitted in (2) (3) & (5) below. (2) Manifold material may only be removed from centre section adjacent to the throttle body. (3) The carburettor base plate must remain within 100mm of the top of the nearest inlet port, measured vertically. (4) The acceptor plate will be a maximum of 25 mm thick. The hole in the acceptor plate will be the same diameter as the hole in the restrictor plate, and will be square edged. The adaptor plate will be a maximum of 35 mm thick. (5) The removed centre section of the manifold is to be filled and welded with aluminium plate. The plate must be of the same thickness as the manifold material that it is being welded to. Essentially, the change enables any competitor running the above engines to remove more manifold material. The orange line on the diagram below is the OEM manifold height, with the green line showing the amount of material that could be removed in the October 2008 approval. The red line shows the new area approved for removal.

Update First Published: Meeting 181 Date Published: September 2010 Relevant Rule: T12-2-17(h) The approved Manifold package for Ford EF, EL and AU Falcon inline 6 cylinder multi point injection manifolds has had another tweak. It has been discovered that a proportion of the OEM manifolds used on these engines have a small mounting bracket that restricts the placement of the carburettor. The Directors have approved the removal of this bracket, as pictured above:-

Update #2... September 2011 It should be noted that these packages are unaffected by the rule change to clause T12-2-18(e), which means the height from the base face edge of the carburettor must still be no more than 100mm from the top of the inlet port on vehicles running an approved manifold package. 30


T12-2-19(a): Exhaust Coating First Published: Meeting 160 Date Published: October 2008 Relevant Rule: T12-2-19(a) The Directors received correspondence regarding the issue of wrapping or painting/coating the exterior of a stockcar exhaust manifold. The rulebook advises that a standard cast iron exhaust manifold must be used in it’s OEM form, but the Directors believe that this allows an exhaust to be wrapped or painted/coated, as it does not alter the form of the OEM part.

S4-4-1(e): Seatbelts to swivel First Published: Meeting 163 Date Published: February 2009 Updated: June 2011 Relevant Rule: S4-4-1(e) This is a general reminder that seatbelt rules are there for the protection of the driver, and they must be followed. One area that does cause particular concern is Rule S4-4-1(e), that states that seatbelts must swivel on their mounting points. Stockcar belts require ongoing attention from both competitors and officials, to ensure that best practice becomes the norm rather than a rarity.

E5-4-2: Fuel Tanks First Published: Meeting 163 Date Published: February 2009 Updated: June 2011 Relevant Rule: E5-4-2 Fuel tank filler neck extensions are considered part of the fuel tank, and must be constructed of the approved material as per rule E5-4-2 (Steel – minimum thickness 1.2mm).

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T13-1-9(g): Side Impact Protection First Published: Meeting 192A Date Published: September 2011 Relevant Rules: T13-1-9(k) and (l) The general consensus is that a couple of rule changes in the Streetstock class (locked differentials and E85 fuel) could lead to increased speed and lap times this season. To maximise the protection for competitors in the event of a side impact, the Board have made a minor rule change under the provisions of Rule C11(k). Many vehicles already have the horizontal bar described in Rule T13-1-9(k), or the vertical bars from clause (l). However, rather than being optional, these bars are now compulsory for all cars. This change is effective immediately. Old Rule - T13-1-9(k) One additional horizontal side bar is permitted, welded in a mid position between the upper and lower side bar mentioned in T13-1-9(i). New Rule - T13-1-9(k): Change in red One additional horizontal side bar is required, welded in a mid position between the upper and lower side bar mentioned in T13-1-9(i). Old Rule - T13-1-9(l) Three spaced vertical bars may replace the additional horizontal side bar on the driver's hip plate only. These vertical bars must be welded and fit between the upper and lower hip plate sidebars.

T13-1-12(f): Radiator Protection Mesh First Published: Meeting 194 Date Published: October 2011 Relevant Rules: T13-1-12(f) A revised rule this season is clause T13-1-12(f), which states that a Streetstock radiator may be protected by steel mesh, a maximum of 4mm thick. Previously there was no size limit on the mesh, which had to be constructed of wire. After receiving numerous correspondence that 4mm mesh is insufficient protection for the radiator, the Board has granted a dispensation for both the 2011/12 and 2012/13 seasons, to allow all competitors to use mesh up to 6mm thick. Effectively, the rule now reads as follows:T13-1-12(f)

A maximum of two braces may be fitted inside the hoop; these braces may be crossed. The leading face of the hoop may be covered with steel mesh, maximum thickness 6mm. 32


T13-1-27(c): Carburettors First Published: Meeting 196 Date Published: December 2011 Relevant Rules: T13-1-27(c) A dispensation from Rule T13-1-27(c) has been granted to Streetstock drivers until the 2013 AGM. T13-1-27(c) Fuel injected engine may be run minus injection but must be fitted with a carburettor from a previous carburettor model - single or two barrel. The intent of this rule when passed was to allow older model carburettors to be fitted to modern engines, but the wording doesn’t accurately reflect the minor modifications that are necessary to fit the carburettor to the manifold, and the “no modifications� aspect of clause T13-1-1(a). This allows two mounting holes on an EA manifold to be modified to enable the XE or XF carburettor to fit.

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T11-1-9(g): Plastic Panels First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T11-1-9(g) Speedway NZ has been made aware that a number of Super Saloon competitors are using imported plastic panels on the front of their cars (pics below), which are a cost effective method of keeping the vehicle looking clean and tidy during the rigours of a long season. However, they aren’t technically permitted under the current rules in the 2011 book, which permit panels made of steel, aluminium, fibreglass or plexiglass. A good quantity of feedback was received, mostly in favour of the change. The rule change was successful, and is now in force as follows:T11-1-9(g)(i) Body panels can be constructed of steel, aluminium, fibreglass or flexiglass. T11-1-9(g)(ii) Commercially available plastic noses and front fenders can also be used. Plastic fenders can extend no further back than 150mm from the centre of the front axle line.

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T11-2-3(f): Approved Cylinder Heads First Published: Meeting 171 Date Published: October 2009 Relevant Rule: T11-2-3(f) Rule T11-2-3(f) was altered at the 2009 Annual General Meeting to allow for new part numbers from the manufacturer of approved Chev cylinder heads. The existing part numbers were also deleted. The Directors do not believe it was the intent of the members at the 2009 AGM to obsolete vehicles running the heads approved in the 2007 rulebook, but rather to allow the new part numbers to be used in addition to the existing part numbers. The new heads are identical to the old models, apart from the revised part number. Therefore, dispensation from Rule T11-2-3(f) has been granted for Chev-powered Saloons using the part numbers as contained in the 2007 Regulations: RHS # 2236794 167T 67cc camber  RHS # 2237694 167T 76cc camber

T11-2-5(c): Carburettor Specifications Published First Published: Meeting 182 Date Published: October 2010 Last Updated: November 2010 Relevant Rule: T11-2-5(c) The Saloon Technical Committee were tasked with defining the specifications of the widely used Holley 1850 carburettor, to meet the requirements of Rule T11-2-5(c), passed at the 2009 AGM. This work has now been completed, and the parameters are reproduced below, along with the relevant rule. All competitors using these carburettors must now comply with these specifications. T11-2-5(c) Carburettor may be of a four barrel configuration, up to 600cfm maximum size all with vacuum secondaries. Holley #1850 or Holley #8007 carburettor; centre hung or side hung floats permitted. Venturi boosters, throttle body, throttle plates and throttle shafts will be subject to minimum specifications as supplied by the saloon technical committee. Minimum specifications will be available on the SNZ website. 1. To be classified as a compliant Holley 1850 Carburettor, the ID # (#1850) must be stamped on the carburettor choke air horn as indicated in Image #3. Any subsequent digit denoting the series number is not required. 2. Primary & Secondary Booster must have internal spray bridge, as indicated in image #1. 3. Down leg boosters with no internal spray bridge are not permitted, refer image #2 4. Maximum depth of Primary Booster internal spray bridge to be no more than 1.700 inches (43.18mm) below upper edge of choke shaft, as indicated in image #4. 5. Maximum depth of Secondary Booster internal spray bridge to be no more than 0.640 inches (16.256mm) below top face of surrounding air horn as indicated in image #5. 35


6. Primary and Secondary minimum throttle shaft diameter (measured including throttle plate thickness); 0.200 inches (5.08mm). Measured with throttle open. 7. Primary and Secondary throttle plates must be manufactured of steel or brass, square edged, minimum throttle plate thickness 0.060 inches (1.524mm). 8. Throttle body bore size primary and secondary: 1.550 inches (39.37mm). 9. Throttle body minimum height: 0.680 inches (17.272mm). Note: When first published, there was an error in these specs relating to clause 7. This has now been rectified. Holley 1850 Carburettor Specifications All measurements in inches/mm

Carb Test # 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

Dash Booster Height Booster Height Series Primary Secondary (Image #3) (Image #4) (Image #5) -4 1.58 / 40.13 0.620 / 15.75 -8 1.65 / 41.91 0.620 / 15.75 -4 1.63 / 41.40 0.570 / 14.48 -4 1.65 / 41.91 0.570 / 14.48 -10 1.68 / 42.67 0.640 / 16.26 -9 1.68 / 42.67 0.640 / 16.26 None 1.60 / 40.64 0.640 / 16.26 -7 1.70 / 43.18 0.640 / 16.26 -3 1.67 / 42.42 0.640 / 16.26 1.66 / 42.16 0.640 / 16.26 -3 1.70 / 43.18 0.640 / 16.26 -9 1.70 / 43.18 0.640 / 16.26 - old 1.70 / 43.18 0.640 / 16.26 -5 1.68 / 42.67 0.640 / 16.26 -4 1.73 / 43.94 (d) 0.730 / 18.54 (d) -3 1.67 / 42.42 0.640 / 16.26

Throttle Shaft Throttle Shaft Throttle Plate Diameter Diameter Thickness Primary Secondary P&S 0.220 / 5.59 0.210 / 5.33 0.061 / 1.55 0.210 / 5.33 0.210 / 5.33 0.061 / 1.55 0.227 / 5.76 0.213 / 5.41 0.061 / 1.55 0.227 / 5.76 0.211 / 5.34 0.061 / 1.55 0.220 / 5.59 0.213 / 5.41 0.061 / 1.55 0.224 / 5.69 0.205 / 5.21 0.061 / 1.55 0.226 / 5.74 0.209 / 5.31 0.061 / 1.55 0.220 / 5.59 0.210 / 5.33 0.061 / 1.55 0.228 / 5.79 0.217 / 5.51 0.061 / 1.55 0.225 / 5.71 0.209 / 5.31 0.061 / 1.55 0.220 / 5.59 0.210 / 5.33 0.061 / 1.55 0.220 / 5.59 0.210 / 5.33 0.061 / 1.55 0.235 / 5.97 0.210 / 5.33 0.062 / 1.57 0.213 / 5.41 0.210 / 5.33 0.062 / 1.57 0.225 / 5.71 0.163 / 4.14 (s) 0.061 / 1.55 0.225 / 5.71 0.208 / 5.28 0.062 / 1.57

Throttle Bore Diameter P&S 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37 1.55 / 39.37

Throttle Body Height 0.71 / 18.03 0.70 / 17.78 0.69 / 17.53 0.69 / 17.53 0.70 / 17.78 0.70 / 17.78 0.71 / 18.03 0.70 / 17.78 0.68 / 17.27 0.68 / 17.27 0.68 / 17.27 0.68 / 17.27 0.68 / 17.27 0.68 / 17.27 0.68 / 17.27 0.69 / 17.53

Note: (d) = down leg booster, (s) = slabbed shaft

T11-2-19: Adjustable Shocks First Published: Meeting 173 Date Published: December 2009 Relevant Rule: T11-2-19 A competitor query regarding the eligibility of adjustable shocks in the Saloon class was resolved. Rule T112-19 is a revision for 2009, and states that all shock absorbers must be steel-body non-adjustable type. The query revolved around whether the intent of this rule was only to eliminate shocks that could be adjusted from the driver’s seat, or whether it was to eliminate all adjustable shocks, including those that can be adjusted once removed from the car, to alter the compression/damping etc. The Directors have decided that the literal interpretation of the rule is the correct one, and that shock absorbers must be of a steel body non-adjustable type. All adjustable-type shocks are prohibited.

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T10-1-3(b): Full Containment Seats First Published: Meeting 160 Date Published: October 2008 Relevant Rule: T10-1-3(b) Current Open Wheel regulations (excluding Sprintcars) are not specific regarding seats, but there are headrest rules in some classes. This has led to a situation where full containment seats are approved for use, but the head support capability of the seat may not be compliant with the headrest rules, due to the length of the sides. The Directors have therefore advised as follows:Full containment seats are approved for Open Wheel vehicles, and if required, clause T10-1-3(b) may be exceeded.

T10-1-4: Engine Trial Approved First Published: Meeting 192 Date Published: August 2011 Relevant Rule: T10-1-4 American Brad Kuhn has received permission to run his sealed and rev-limited 174cu inch Fontana engine in the Midget ranks next season. The engine will be part of an approved trial, and is eligible for all competition excluding the NZ Championship. Fontana has recently received approval from USAC to run the engine in the United States, and it will be interesting to see the performance against New Zealand competition. Once the trial is complete Speedway NZ will assess the suitability of the engine for any possible further use in the class.

T10-1-7(n): Side Panels First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T10-1-7(n) A new rule for this season in the Open Wheel classes relates to the need for side panels to be flat. Some confusion has arisen as to what constitutes a side panel. The panel circled (right) is not considered a side panel, and is able to bend outward to provide the driver with a little more room in the cockpit.

E4-2: Electronic Fuel Injection not permitted First Published: Meeting 194 Date Published: October 2011 Relevant Rule: E4-2(b) There has been some enquiry about whether the freeing up of the Electronic rules in Section E4 has had the effect of allowing Electronic Fuel Injection in the Midget class. The answer is to be found in Rule E4-2(b) on page 73 of the 2011 rulebook, which lists the classes that may run EFI (Super Saloons, Saloons, Production Saloons, Streetstocks and Sidecars). As that clause wasn’t altered at the AGM, Midget specifications are unchanged and cars racing in the class cannot utilise Electronic Fuel Injection. 37


T10-2-2(k)(vii): Trial Approved First Published: Meeting 178 Date Published: May 2010 Relevant Rule: T10-2-2(k)(vii) The water-cooled TQ engine package was instigated a number of years ago to provide a lower cost option to competitors in the class. One of the conditions is that the engine must retain the OEM computer, which has proven to be problematic in some instances. The OEM ECU includes all of the sensors that are required when the engine is installed in a motorbike, such as checking that the kick stand is up, and that the rider is on the seat etc. Finding workarounds to adapt the computer for speedway use can be an expensive and time consuming exercise. Following an application from Christchurch’s Darryl Cook, the Directors have approved a trial of a Control ECU in the TQ class for next season, on a water-cooled Suzuki engine. The ECU is from the same manufacturer as that approved for use in the Stockcar class, making it easy to assess and police. It is hoped that the Control ECU will prove to be a simple and cost effective method of adapting water-cooled engines for use in the class.

T10-2-20(p): Side Panels First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T10-2-20(p) A new rule for this season in the Open Wheel classes relates to the need for side panels to be flat. Some confusion has arisen as to what constitutes a side panel. The panel circled (right) is not considered a side panel, and is able to bend outward to provide the driver with a little more room in the cockpit.

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T10-3-4(j): Approved Sprintcar Seats First Published: Meeting 179 Date Published: July 2010 Relevant Rule: T10-3-4(j) Approved full containment seats are compulsory in the Sprintcar class from the 2010/11 season, and eight manufacturers have had their products signed off for use under Rule T10-3-4(j). They are as follows:Butler CSR Harris ISP

Kirkey Racetech RCI Ultrashield

SNZ approved full containment seat manufacturers/suppliers must provide all manufacturing details and specifications, together with full mounting details which must be complied with in full by the competitor.

T10-3-8(h): Side Panels First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T10-3-8(h) A new rule for this season in the Open Wheel classes relates to the need for side panels to be flat. Some confusion has arisen as to what constitutes a side panel. The panel circled (right) is not considered a side panel, and is able to bend outward to provide the driver with a little more room in the cockpit.

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T10-4-3: Trial Approved Tony Farmer from New Plymouth has permission to trial a Toyota 2NZ-FE 1298cc twin cam engine from a 2002 Toyota Corolla, running fuel injection and the Toyota ECU. Some of the fundamental issues facing Minisprints are the unreliability and age of existing engine options, and this option may address these problems. The vehicle is not eligible to enter allocated titles, and the terms and conditions of the trial enable changes to be made (such as imposing additional restrictions or even terminating the trial) if the engines don’t prove to be in the best interest of the class.

T10-4-9(p): Side Panels First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T10-4-9(p) A new rule for this season in the Open Wheel classes relates to the need for side panels to be flat. Some confusion has arisen as to what constitutes a side panel. The panel circled (right) is not considered a side panel, and is able to bend outward to provide the driver with a little more room in the cockpit.

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T11-3-10(e): Approved Engine Blocks First Published: Meeting 196 Date Published: December 2011 Relevant Rule: T11-3-10(e) SNZ may approve alternative cylinder blocks in the Modified Class provided the following standard dimensions and data are maintained: camshaft location, cylinder bore spacing, bank angle in case of 'V; type engine, crankshaft centreline to deck face, material may not be added. See Rule T11-3-10(e) for more details. Dart blocks with the Part #’s 31161111 and 31161211 are now approved for use in the Modified class, effective immediately.

T11-3-12(i): Throttle Return Springs First Published: Meeting 193 Date Published: October 2011 Relevant Rule: T11-3-12(i) Clause T11-16-11(a) was deleted from the Modified rules at the recent AGM, but the Board have moved to reinsert the clause into the rules using their powers available to deal with an urgent safety matter that are outlined in Rule C11(k). The need for two throttle return springs is a fundamental safety requirement, and therefore the new clause now reads as follows:T11-3-12(i) Two return springs must be fitted to the induction throttle shaft, anchored at separate mounting points. This is effective immediately.

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T15-1: Van Parts Not Permitted First Published: Meeting 153 Date Published: January 2008 Relevant Rules: T15-1(c) and (d) The use of van diff ratios (or other van componentry) is not permitted under the above rules.

T15-1(d): Limited Slip Diffs First Published: Meeting 184 Date Published: November 2010 Relevant Rule: T15-1(d) Rumours are circulating about the possibility that a number of Nissan Ministocks are running ex-rally Limited Slip Differentials. This is a reminder that Limited Slip Diffs are not permitted in either Ministock class.

T15-1(e): Suspension cross-member First Published: Meeting 152 Date Published: November 2007 Relevant Rule: T15-1(e) The front suspension cross-member must be mounted directly to the chassis rails either by way of bolting or welding. No spacer blocks will be present to space the cross-member away from the chassis rails.

T15-1-1(b): Bodywork Clarity First Published: Meeting 184 Date Published: November 2010 Relevant Rule: T15-1-1(b) The question has again arisen as to whether bodywork is permitted forward of the radiator on a Ministock, with differing perspective on this from around the country. Some vehicle checkers have been pretty clear that it was not tolerated, while at other venues a variety of front panels have been appearing over the last season or two. To clarify one way or the other, a rule change was put forward as part of the remit process that bodywork forward of the radiator not be permitted. This proposal was declined, and therefore, the Directors have advised that bodywork forward of the radiator is still permissible, providing it is not a wing.

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T15-1-1(e): Windscreen Mesh First Published: Meeting 184 Date Published: November 2010 Relevant Rule: T15-1-1(e) A sturdy front mesh screen is a fundamental safety requirement for the Ministock class, so the practice of only partially filling the windscreen hole is not permitted. T15-1-1(e) Protective mesh screen must be fixed to completely cover screen opening in front of driver. Mesh to have no larger squares than 100mm square. Rule T15-1-1(e) is clear, but the issue has been around what constitutes the “screen opening in front of the driver”. The screen opening is the entire area between the four rollcage bars required under Rules T15-1-4(a) and (b). Filling the top and/or bottom of the screen with an alloy panel, and fixing the screen mesh to this is not a suitable solution.

T15-1-2: Adequate firewall First Published: Meeting 152 Date Published: November 2007 Updated: December 2010 Relevant Rule: T15-1-2 The relevant rule reads as follows:T15-1-2 Adequate metal firewall must be fixed to and in line of the front rollcage down tubes to isolate the driver from the engine compartment. The Directors definition of the where the firewall needs to be and what is considered “adequate” is:The firewall is considered to start from the top of the chassis rail upwards and can be made from any material considered to be metal, i.e. aluminium. Any trim fitted around the gearbox opening in either the footwell of firewall area should be sealed with any non flammable material, i.e. tin or aluminium. From the top of the chassis rails down to the base of the footwell is considered to be footwell area and must be constructed of 3 mm steel as per T15-1-3(a).

T15-1-5(b): Head Plate Clarified First Published: Meeting 183 Date Published: October 2010 Relevant Rule: T15-1-5(b) Ministocks have been around for 15 years, and Rule T15-1-5(b) has been unchanged since the class entered the rulebook in 1998. However, an anomaly exists in this rule that no-one has picked up on until this season. It is physically impossible for a taller or shorter adult or child to meet the requirements of this rule, and still build a car within the restrictions of the Ministock plans. The relevant rule is as follows:43


T15-1-5(b)

Roof plate to be 500 mm wide minimum size extending from the back of the headrest, 500mm forward and welded continuously on four sides to the cage (it shall not have lightening holes cut into plate whatsoever) to provide ample protection for the driver's head. (250mm in any direction from centre of driver's helmet when in a normal seated position).

While investigations into how to resolve the issue continue, roofplate meeting the following requirements is acceptable for Ministocks:1) 2)

Roofplate that extends 250mm in any direction from the centre of the drivers helmet, OR Roofplate that extends 250mm from the front and sides of the centre of the driver’s helmet, and to the brace at the rear (see image).

The roofplate must still be welded continuously to rollcage material on all four sides, be 500mm minimum width and cannot have lightening holes added. However, there is now an element of flexibility to take into account the height of the driver.

T15-1-14: Rear Brakes First Published: Meeting 152 Date Published: November 2007 Relevant Rule: T15-1-14 Provided that the rear wheels fit on to the axle spigot correctly and that they are clamped tightly against the rear axle flange by the wheel nuts that no rear brake drum in required to be run on the right hand rear axle. Bearing in mind that this will only apply if the brake is fitted to the left hand rear axle and is maintained in good working order.

New Competitors to be identified First Published: Meeting 182 Date Published: October 2010 New Youth Ministock competitors begin on what is known as a “B” licence and are subject to various restrictions until they gain confidence and experience. For instance they must start from the rear of the grid for all races, and the competitors aren’t permitted to travel to other tracks. At many venues, a B licence holder is indentified by a flag or marking on the rear of the vehicle, which alerts other competitors to the fact that the driver of the car is relatively inexperienced. Once the competitor has gained confidence and met the requirements of an A licence, they are able to take their place in the grid and travel to other tracks. The B licence identification has merit, and is now compulsory at all tracks from the 2010/11 season on. The method of identification is at the discretion of the promotion, but all tracks racing the class must have a system for clearly identifying competitors on a B licence. The identification method must also be clearly explained to all Youth Ministock competitors at drivers briefings, so the more experience competitors can keep an eye out for the newer drivers. 44


D1-1-8: Seat Belts First Published: Meeting 163 Date Published: February 2009 Updated: June 2011 Relevant Rule: D1-1-8 The use of two lap/sash belts with the inertia system removed is an acceptable practice, and meets the requirement of a “full 4-5 point safety harness� as per Demolition Derby Rule D1-1-8.

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1 Index of Registered Vehicle Makes and Models Note: If your vehicle is not here, the measurements have not been registered with SNZ, and technically the vehicle is not permitted to race. Contact the SNZ Office ASAP to get your measurements registered. Make/Model Chevrolet Camaro

Sub Model

Chevrolet Corvette

C3 Facelift C4 ZR1 Grand Sport C5 C6

Chevrolet Monza Ford Falcon Ford Mustang

Holden Commodore Holden Monaro Honda Prelude Mazda RX7 Mitsubishi GTO Nissan 350Z Pontiac GTO Pontiac Firebird Pontiac Transam Toyota Supra Triumph TR8

BA XR8

VK VE

Year 1993-1997 1998-2002 1974-1982 1984-1 989 1990-1995 1996 1997-2004 2005-present 1975-1979 2002-2005 1987-1993 1994-1998 1999-2004 2005-present 1984-1987 2006-present 2001-2005 1992-1996 1989-1992 1994-1996 2003-2008 2004-2006 1993-1997 1998-2002 1982-1990 1993-1997 1994-1998 1978-1981

46


2 Measurements and Profile/Shape Information of Registered Models

CHEVROLET CAMARO (3rd Generation) In Production

1982 – 1992

Measurements Overall length: Wheelbase: Width: Front overhang:

4877mm 2566mm 1850mm 1178mm

CHEVROLET CAMARO (4th Generation) In Production

1993 – 1997

Measurements Overall length: Wheelbase: Width: Front overhang:

4907mm 2568mm 1882mm 1168mm

CHEVROLET CAMARO (4th Generation Facelift) In Production

1998 - 2002

Measurements Overall length: Wheelbase: Width: Front overhang:

4907mm 2568mm 1882mm 1168mm

47


CHEVROLET CORVETTE C3 Facelift In Production

1974-1982

Measurements Overall length: Wheelbase: Width: Front overhang:

4704mm 2489mm 1753mm 1077mm

CHEVROLET CORVETTE C4 In Production

1984-1989

Measurements Overall length: Wheelbase: Width: Front overhang:

4480mm 2440mm 1800mm 1030mm

CHEVROLET CORVETTE C4 ZR-1 In Production

1990-1995

Measurements Overall length: Wheelbase: Width: Front overhang:

4506mm 2443mm 1880mm 1029mm

CHEVROLET CORVETTE C4 GRAND SPORT In Production

1996

Measurements Overall length: Wheelbase: Width: Front overhang:

4534mm 2443mm 1796mm 1029mm 48


CHEVROLET CORVETTE C5 In Production

1997-2004

Measurements Overall length: Wheelbase: Width: Front overhang:

4564mm 2654mm 1869mm Refer T11-2-20(b)

CHEVROLET CORVETTE C6 In Production

2005 – present

Measurements Overall length: Wheelbase: Width: Front overhang:

4435mm 2685mm 1844mm 920mm

CHEVROLET MONZA In Production

1975-79

Measurements Overall length: Wheelbase: Width: Front overhang:

4554mm 2464mm 1661mm 935mm

FORD FALCON BA XR8 In Production

2002 - 2005

Measurements Overall length: Wheelbase: Width: Front overhang:

4920mm 2829mm 1864mm 910mm

49


FORD FALCON BF In Production

2005 - 2008

Measurements Overall length: Wheelbase: Width: Front overhang:

4920mm 2829mm 1864mm 910mm

FORD MUSTANG (GEN 3 FACELIFT) In Production

1987 - 1993

Measurements Overall length: Wheelbase: Width: Front overhang:

4562mm 2553mm 1755mm 965mm

FORD MUSTANG (GEN 4) In Production

1994 - 1998

Measurements Overall length: Wheelbase: Width: Front overhang:

4610mm 2570mm 1824mm 1010mm

FORD MUSTANG (GEN 4 FACELIFT) In Production

1999 - 2004

Measurements Overall length: Wheelbase: Width: Front overhang:

4653mm 2570mm 1857mm 1040mm 50


FORD MUSTANG (GEN 5) In Production

2005 - Now

Measurements Overall length: Wheelbase: Width: Front overhang:

4765mm 2720mm 1879mm 940mm

HOLDEN COMMODORE VK In Production

1984-1987

Measurements Overall length: Wheelbase: Width: Front overhang:

4714mm 2668mm 1722mm 940mm

HOLDEN COMMODORE VE In Production

2006-Now

Measurements Overall length: Wheelbase: Width: Front overhang:

4894mm 2915mm 1899mm 846mm

HOLDEN MONARO In Production

2001-2005

Measurements Overall length: Wheelbase: Width: Front overhang:

4789mm 2788mm 1841mm 943mm 51


HONDA PRELUDE In Production

1992-1996

Measurements Overall length: Wheelbase: Width: Front overhang:

4440mm 2550mm 1765mm Refer T11-2-20(b)

MAZDA RX-7 (SERIES 5) In Production

1989-1992

Measurements Overall length: Wheelbase: Width: Front overhang:

4315mm 2431mm 1689mm 900mm

MITSUBISHI GTO (Facelift) In Production

1994-1996

Measurements Overall length: Wheelbase: Width: Front overhang:

4560mm 2470mm 1840mm 1030mm

NISSAN 350Z In Production

2003-2008

Measurements Overall length: Wheelbase: Width: Front overhang:

4310mm 2650mm 1815mm Refer T11-2-20(b) 52


PONTIAC GTO In Production

2004-2006

Measurements Overall length: Wheelbase: Width: Front overhang:

4821mm 2788mm 1841mm 975mm

PONTIAC FIREBIRD (4TH GENERATION) In Production

1993-1997

Measurements Overall length: Wheelbase: Width: Front overhang:

4968mm 2568mm 1892mm 1168mm

PONTIAC FIREBIRD (4TH GENERATION FACELIFT) In Production

1998-2002

Measurements Overall length: Wheelbase: Width: Front overhang:

4910mm 2568mm 1890mm 1130mm

PONTIAC TRANS-AM (3RD GENERATION) In Production

1982-1990

Measurements Overall length: Wheelbase: Width: Front overhang:

4958mm 2566mm 1839mm 1182mm

53


PONTIAC TRANS-AM (FOURTH GENERATION) In Production

1993-1997

Measurements Overall length: Wheelbase: Width: Front overhang:

5004mm 2568mm 1892mm 1204mm

TOYOTA SUPRA (MK IV) In Production

1994-1998

Measurements Overall length: Wheelbase: Width: Front overhang:

4515mm 2550mm 1811mm Refer T11-2-20(b)

TRIUMPH TR8 In Production

1978-1981

Measurements Overall length: Wheelbase: Width: Front overhang:

4204m 2159mm 1681mm 900mm

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SNZ Technical Database