doubt it. more like 280 to 300 whp. but without dynoing you will just guess.

GMS1 puts peak boost at 20 psi and they say 280 whp 320 wtq.

 

 

i mean a dyno can be made to read anything if you really want it to. your best bet is to take everything off, get a stock reading at your favorite dyno place. then mod your car and see what your gains are.

a lot of people get hung up on numbers but they mean little if you haven't had a baseline.

 

I would guess it to be closer to 275whp. The biggest power gainer can be an aftermarket downpipe that's larger diameter. I have never had much luck with chips. Like leemanfor said every dyno can give you different numbers. With factory intake mod, drop in filter, good downpipe and the mods you already have, with a good hp tuners tune, you can get that 315whp. On e47 or e85 a factory turbo car can register as high as 340-350whp all out depending on what dyno it is.

 

When I first started playing with my Cobalt I used a Suprerchips tuner. It really wasnt too bad. It really woke the car up, and I never had any problems. Then I went with Trifecta before I finally went to HP Tuners (best). Live and learn, wish I could have done it right the first time and had all that money still!

 

oh boy lol. im making 357whp and 375wtq on e47 (22psi), stock turbo and stock motor......plenty of other making these kinds of numbers and on 93 youll see 320-330whp and 350-370wtq depending on tune

 

Also depending on the dyno. Can't really ever tell for sure which is right.

 

 

I thought the GMS1 numbers were crank numbers, no?

 

Yes I believe they were motor hp and torque. Btw 91 octane isn't great for making power.

 

Nope, they rated whp. Same with the stock power of 260hp was whp.

 

Really? I always though it was crank too.

 

Yup, and not that it means jack or **** since every dyno is different. Just looking at the dyno results thread stock and GMS1 vary from 240 to 277whp with the kit rating from CED at 280 for the Cobalt

 

Isn't that rating what gm said the kit was rated at? I wanna say there was a bulletin or something at one time explaining the kits on different cars.

 

Are you guys sure of that? I purchased the gms kit and I'm almost positive that it was motor hp. I will look for the details again.
When I purchased my car back in 12 the propaganda I read said they were 260hp from the factory, not 260whp. I don't think gm ever rated their cars at whp. Just crank

 

Looking at the dyno threads unless the driveline is super efficient I don't think it's crank (it would be less than an 8% driveline loss)

 

I believe GM rates them in engine HP not whp. but dyno's all around the country put them between advertised WHP.

for instance. Stock I put down 269 whp 265 wtq on a dynojet.

 

I do think there is very little driveline loss. That f35 can't put a whole lot of drag on the motor. I always figured 9-10% loss. My Nova has like 20% with that turbo 400.
My old 94 Z28 was an auto and it only dyno'd like 280whp and it was tuned and had several bolt on's on the car. The older auto trans cars got killed by those transmissions.