Include

[Leman]

Originally Posted by mdickie

The terms most often used in relation to Air-Fuel Ratio (AFR) are Fat and Lean. Fat simply means that there is more fuel in the mixture, lean means there is less fuel in the mixture. Putting more fuel in the mixture robs the car of some performance but also protects the engine from "burning up" components. Leaning out the AFR will help you gain performance, but there is a fine line between lean and too lean. FRC Tom is extremely knowledgable in what works for these engines and what does not.

A Tune is the tweaking of various computer characteristics in the engine computer system. Specialized software is required to modify the parameters in the engine control system. FRC Tom uses a package called HP Tuners to perform the tuning of the engine control system.

A tune like what is shown above is not a mail in tune, but rather a Dyno and road test tune of the car live and in person at a perfomrance shop. Depending on what modifications you have made to the engine of your car a mail order may or may not work. A mail order tune works best when a specific set of known mods have been added to a car. Generally speaking, however, it is always better to take your car to a reputable shop and have a known tuner put your car on the road and on the dyno to perform the tuning of the engine.

Tuned properly, you should suffer no longevity issues or engines problems, this only happens when tuners get too aggressive with their modifications to the engine control system.

If you have a stock 07 and the killer Bee intake, send a PM to FRC Tom, he may be able to provide a mail order tune for those mods that will allow you to get the most out of what you have.

FRC Tom is one of the best, I trust him implicitly, he has tuned my car several times.

Mark

An answer I have printed to keep. Thank you, I was wondering why there was such a large AF difference in the tunes pictured. As I do not have a dyno around me, if I ask TOm for a mail in tune, would a Predator be a god investment?