racing at drag stripe

[IncognitoSpec]

How rich are you running Kinky, The idea of a piggy back a system is to lean out the car to have a proper afr. Just add more fuel to the mix won't really get u any gains with out equal air. Hopefully everyone isn't depending on the ecu to tune for something it isn't ment to

[Zipper]

But the chip makes the car think the airs colder, and in turn, more dence. More air means more fuel put in

[IncognitoSpec]

Originally Posted by Zipper

But the chip makes the car think the airs colder, and in turn, more dence. More air means more fuel put in

It makes the car think theirs more air but the chip isn't tune to the air that is in coming. Plus the incoming air temp and air flow is different for every intake and car, hence the need for a learning ecu that allows for a moderate adjustment. Or getting a Apexi Safc II and dyno tuning the car is better since you can make more accurate adjustments.

I recently had my car dyno'ed to see where i'm at and noticed my afr was all over the place, I could see easily where i could gain a moderate amount of power and tq. My ecu does a great job in tuning but i was able to see where it could be improved.

Does anyone have a wideband or access to a dyno that could have their afr mapped to see how well their car is tuning?

People please keep in mind that to much fuel will take away horsepower, which is why you need a proper mix..

[kinkyllama]

Originally Posted by IncognitoSpec

How rich are you running Kinky,

heh, I was running 12 to 1 and we couldn't lean it out anymore because the piggy back I'm using is made more for turbo. As soon as I get 4+k rpm it dumped even more fuel and cut out the engine.

I had to replace my injectors with the stock ones and no its running well but I have no idea how the afr is. Keep in mind the reason It was running so rich is my 255 fuel pump and 44lbs/hr injectors.

[IncognitoSpec]

Originally Posted by kinkyllama

heh, I was running 12 to 1 and we couldn't lean it out anymore because the piggy back I'm using is made more for turbo. As soon as I get 4+k rpm it dumped even more fuel and cut out the engine.

I had to replace my injectors with the stock ones and no its running well but I have no idea how the afr is. Keep in mind the reason It was running so rich is my 255 fuel pump and 44lbs/hr injectors.

That is why i like the apexi safc II you can change in increments of 500 rpms instead of setting a fuel curve. plus turbo apps are designed to dump fuel after boost. Which piggy-back are you using ? If you are sitting at 12 to 1 in the lower rpms and getting dumped on pass 4k you may want to look at another piggy-back.