Round Rock TA

On a single turbo system how much RWHP increase would you see from the additional 3 PSI. Lets say that you are at 400RWHP at 5 PSI and you jump to 8 while doing everything to run at that 8 safetly and correctly.

Is there a general rule of thumb?

Thanks

Pro Stock John

iTrader: (34)

The gains are bigger the lower the initial starting number. 3psi could be 30rwhp, could be 70rwhp. I'd guess that you'd go from 400rwhp to maybe 440-450rwhp but I am not a turbo person.

TTSSZ

iTrader: (8)

I think maybe 70rw, but I bet w/ a single the torque will go up 90rwtk

I went from 550 to 572 w/ 1/2# increase...
I think it also helped that my a/f ratio was to fat at 7 ½, it liked 8# better because with the same tune and a little more boost, gas mileage got noticeably better, and car ran crisper across the whole rpm range.

SprayJ

iTrader: (17)

I went from 423 rwhp @ 5 lbs. to 488 rwhp @ 8 lbs. About 65 hp from 3 lbs. in my case.

GrannySShifting

iTrader: (10)

it holds to about 19-23 hp per psi a general

Slowhawk

iTrader: (12)

I've seen 25-35hp per pound on the STS kit's.--intercooled of course.