A\F Ratio on Paxton car?

[pullshard]

A\\F Ratio on Paxton car?

I posted this on the other forum, so I apologize if some have read. But I'm not getting much help. The A\F of my 2000 gts-Paxton car is 12.2:1 Is this ok, or should it be lower. This car has a programable Unichip installed as well with 2 core air to water intercooler. Octane here is 91. The car runs great! Just want to be safe.
Thanks

 

[DChan415]

Re: A\\F Ratio on Paxton car?

12.2 is fine, it just doesnt give you alot of room to compensate for bad gas, overheating, and other variables that can cause knock. You're running at a reasonably low boost level anyway, I'd leave it alone if it were my car. But then again, if it were my car, I'd have at least a j&s knock sensor on it.

 

[JKD COBRA]

Re: A\\F Ratio on Paxton car?

I agree with DC. Technically your fine, but a lot of people prefer around 11.5:1 for daily driven cars. The knock sensor is a great idea, and a wideband 02 sensor is also a good idea.

 

[Torquemonster]

Re: A\\F Ratio on Paxton car?

Unless you get a bad tank of gas you should be fine. A knock sensor is a great idea in case that happens.

11.5 on a dyno often works out to 12.5 on the road on boosted cars for some reason - but anything richer than an actual 11.5 is washing your bores wasting fuel and engine life. 12's are a far better tune provided you maintain adequate octane.