Rear track: 140 cm Camber: 4 mm open below Toe-in: 4 mm open Crown: 79 The session is longer this time, about 8 laps. Carburetion is slightly leaner at high revs allows me to do more laps and at a speed you feel especially at the braking point of the turn that leads to the main straight (the American’s turn). With the new pressure I tend to improve with each lap, but the track still hasn’t got much grip and without the right entry, when I try to steer the forecarriage tips and from half way through the turn the rear starts jumping. I go back to the pit and as I tell Marco what had happened, my sensations, before I even finish, he says that he had already noticed it all, and it’s necessary to adjust the chassis to track conditions loading the angle of incidence “caster” by at least one degree more.
Having changed setup, the chassis is perfect on the lap that follows, chassis response is absolutely neutral and this allows me to gain important tenths round turns. When they gave me the Ok from the pit to fiddle around with the carburettor, I easily go below the”theoretic crono” set by Marco. On the last session they mounted a set of tyres that still had the line (practically it had just been run in) and seeing the high temperatures of the asphalt (with the tendency to slightly increase lap time after the seventh lap) the tyre pressure is slightly lowered, from 0.66 to 0.62 bar for the front and from 0.64 to 0.60 bar for the rear. Lap time stopped goes down by another three tenths and this is quite satisfactory. Personally, I can only confirm the brilliant sensation that I got on the DR and with TM engine not to mention the rib protector, really great.
A COROLLARY AND CONFIRMATION OF WHAT AYRTON SAID WE HAVE THE DATE PICKED UP BY THE DATA LOGGER.
Gyroscope
After the first adjustments the driver manages to driver faster round turns and also turn entry is better, the kart tends to skid less because it’s more agile in speed change and therefore this helps corner exit and acceleration. All this also tells us how competent the Rossi team is when dealing with adjustments, a warranty!
VROOM INTERNATIONAL MAGAZINE 87