Quote:
|
Originally Posted by ZER026D
Cause you are now running hoter then stock so the car is using more fuel to cool the EGT's down I think. I might be wrong but this what I think if not maybe now that you like the way you car sounds so you are pushing the gas more.
|
Actually, freer flowing exhaust runs cooler. Those cat's in the stock exhaust heat everything up a ton. A common CEL from turbo-back exhaust is the "inefficent cat" warning. Basically the EGTs are too low, so the computer assumes the cat's aren't doing their jobs and it throws a CEL. I get one if I jump on the throttle hard while the car's still cold and my single cat isn't up to operating temperature.
My guess for the reason your fuel mileage goes down (mine's low too these days, around 19mpg) is simply due to the higher flow. You run the car up to higher revs a lot easier now, and more revs and more flow means the injectors are open longer. But that's just my guess. Basically it boils down to what Evan's staying... it's easier to stop on it now, so you do.
I know I have to really try to drive conservativly, or I'm constantly bombing around at 1bar of boost with the exhaust roaring.
Oh, and afaik, there's no spell checker module for this board. I'm currently writing my own, so I'll check into how hard it'd be to add spell check.