Tsi_Xtreme

How much hp will a stock s4 turbo support? I have gotten 250 at the wheels on the one that was on my SE block on 8 psi. I am now using S4 turbo tII rotors and housing and S5 N/A 6 port housing, its streetported as well and the 6 ports done right. I wanted to crank it up to about 10 psi. I'm wondering if I am going to pull out more than 250 on that tiny turbo. What do you guys think?

NeCr0mStR

iTrader: (3)

you'll prolly get more power but be careful you don't start leaning out, or you could pop that motor in no time.

rotorforce

There was a thread about max HP from a stock turbo just this week, and I believe most members said 250max.

adrock3217

Well rotor, that was 250rwhp max on a 4-port motor. A 6-port flows a lot more air...More in, more out..faster spool, less PSI drop off at higher RPM's...


If you can keep the intake charge cool enough (read:alcohol injection?) and boost 13-14psi..I'd say 260rwhp?

rotorforce

Ahh I see... I don't know much about the 6port turbo conversions, but you learn new things every day... However I do know that a stock s4 turbo cannot handle 13-14psi of boost. 10psi is usually max before you risk failure from the unit.

-Mike

Tsi_Xtreme

damn... guess its turbo upgrade in my future. Don't really have to worry about leaning out... 1600cc injectors I think can pump enough fuel for that tiny turbo.

RETed

Uh, so many things wrong with that statement, I dunno where to start...
*sigh*


-Ted