Quote:
quote:Originally posted by 3BarBoost
Actually, in the case of Turbos (and for everything fuel injected) - there is no such thing as too little backpressure. That is something held over from the carburated days. So go BIG, especially in a Turbo - because the turbo spools up faster with less restriction and needs less wastegate up top to make the same boost. Backpressure costs horsepower and response, which is why an exhaust is one of the first things you should change on a turbo car.
That's why my race pipe is only 2.25" and pulls like you wouldn't believe. Put the cat back in, and - blah. But clean air is the name of the game right?
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ooooOOOOOooooooh! Duh! I see. Yes, my little bit o' knowledge is outdated. Cool, that simplifies tuning quite a bit. Thanks!
Hmmm...this shifts my timetable around a bit, too. I was going to replace the exhaust with the Stage 2 installation. I guess I am in the market for an exhaust now.
Stipulating to Stage 2/280 HP, would there be an advantage to a 3" pipe over 2.5"?
I am also curious about MEX's question about deleting the cat, as well as any other ramifications of doing so.