thunder550

iTrader: (70)

It needs to be SINGLE, duals are not an option with my single turbo system. I was thinking 4", but I want to make sure I don't have to re-do anything after I get this all done. I remember seeing a chart that someone posted for exhaust size vs HP level, but I can't find it now. Anyway, what do you guys think? Will 4" be enough?

dewmanshu

iTrader: (4)

Fine, isolate hundreds of us from your too good for the rest us thread with "600 rwhp and up". sheeesh.

thunder550

iTrader: (70)

Dewey, if you ain't cookin me dinner, get outta the kitchen

kw05silverado

iTrader: (1)

turbo diesels run 4-5"

BlackGMC

iTrader: (31)

Here you go big guy

Per Magnaflows website:
http://www.magnaflow.com/07techtips/faq/question10.asp





From this chart maybe 4.5 should do ya good....

thunder550

iTrader: (70)

Thanks, but that chart only goes up to 550 rwhp There was another one that I thought went all the way up to 1000 or something like that.

thunder550

iTrader: (70)

Ah hah! I found it This is from Dynomax's online catalog.

ranwalk

iTrader: (1)

I'm running 3.5 inch single on mine

BlackGMC

iTrader: (31)

I have also read that you can compute the optimum exhaust pipe size by the following equations:

Single: SquareRoot(Flywheel HP/40)

Duals: SquareRoot(Flywheel HP/80)

So for 600 RWHP (w/ 10% Drivetrain Loss) = SQRT(600*1.10/40) = 4.06"

You basically round up to the next .5 exhaust pipe size. I ran across these equations will looking for some header specs...

thunder550

iTrader: (70)

I think I'm gonna go with a 4" setup. I'm sad to say it, but I think it's time to move on from the Corsa. I love the way it sounds, but it's too restrictive at this point Makes me sad....it's one of the best sounding systems I have ever heard. I have gotten a lot of compliments from it too.