[M758]

Originally Posted by mAd924

i have a few maintenance things to do and then start modding. i'll be going back to the same dyno after each mod. first mod is some lightweight pulleys and then talking to Russell Berry about a 944max chip to suit the gas I use here (98RON). I'm getting it purely for drivability, i'm not interested in big numbers, especially for an 8v n/a... thats kind of pointless imho.

the dyno is in a sealed, climate controlled room btw

Ok, I missed the part about no cat. I believe some non-usa markets got them.

Beyond that I wonder if you are using a different dyno or have an issue. 123 whp about what I would expect a decient US spec 9.5:1 car to put down on Dynojet with a normal Cat.

Most 944 spec cars make 5-10 hp more. The only motor mods are no-cat and the head is usally fresh. By fresh I mean had been removed, cleaned and valves seated to factor specs.

I would expect a 10.6:1 car with not cat to be at least 135 whp given the 163 bhp rating vs the 150 hp rating for the US spec 9.5;1 cars.

That said if you are not using a dynojet or use a different standard correction the numbers will be different as most of my data comes from dynojets.