can someone tell me what does a stock s4 usually put down to the wheels on a dyno. and also what would a s4 with a intake advance timing and header and full exhuast put down. anyone got close to those mods that got there junk dynoed?? thanks

 

Depends on the condition of the engine of course, but I've heard that high mileage s4 N/A's usually drop somewhere between 85-95 RWHP on the dyno. A brand new or rebuilt somewhere between 105-115 RWHP. It's not that impressive, but then again neither is 143HP at the flywheel.

 

yeah, cause all n/a's out there are not modded

 

I put down 129-131 (depends on conditions)

2.5" pipe off the stock manifold, 3" as soon as it turns straight back. 3" high flow cat and single 3" all the way back with a straight-through muffler. Cone filter with adapter. 6-ports wired open.

Brad

 

I'd guess with a strong engine you'd put down somewhere around 125rwhp.

 

http://www.bfimotorsports.com/dyno/dyno.html
Enjoy...
-Matt
www.bfimotorsports.com

 

DAMN, rotaries are smooth ******* just look at those near flat *** lines (sorry for the language, but can't help it right now i'm overwhelmed again )!!! Pistons have no chance...

 

hahah. these things are really fast for the hp figures!!