Engine Builder, November 2013

Page 69

62-72 After the Build 11/20/13 8:44 AM Page 67

The most important tools of a tuner include a timing light, a weather station and the equipment needed to read the air/fuel mixture of an engine.

mum full throttle output which is only a part of a typical engine’s operation once it is the vehicle. The air density that really matters to an engine is the air that it is getting thru its air cleaner package during the dynamic real world operating conditions it will see in the engine compartment of the vehicle the engine was built for. The air density and the flow patterns of the A wide-band sensor based digital air/fuel meter seen below is a very affordable tool that every engine tuner should have in their tool box.

air as it enters a carburetor is often quite different from the static temperature controlled conditions that were seen in the dyno room which will often cause the air/fuel mixture to change once it is installed in the vehicle the engine was built for.

Tools for Reading the Air/Fuel Mixture The two most common tools used to check the air/fuel mixture are a 5gas exhaust gas analyzer and a wide-band sensor based digital air/fuel meter. The readings from a 5-gas exhaust gas analyzer method are more comprehensive and accurate,

Circle 67 for more information EngineBuilderMag.com 67


Issuu converts static files into: digital portfolios, online yearbooks, online catalogs, digital photo albums and more. Sign up and create your flipbook.