Pontiac Grand Prix Forums : Grandprix

SD GTP · #1 01-02-2008, 01:25 PM

I feel like hitting the Dyno to see what kind of power the GTP is pounding down with the headers, 3.25, and the new exhaust. I'm shoot for somewhere in the 330-350 crank HP range after being at 300hp at Carlisle. I'm going to try to find a decent shop and go from there but I figured I'd see if anyone else is interested.

Injun #4 · #2 01-03-2008, 07:10 AM

As I've said before, if the price is right, I'm up for finding how much power this thing isn't putting out. LOL

Incomudrox · #3 01-10-2008, 03:35 PM

I'd def be up for that! Depends where it is....

Injun #4 · #4 01-10-2008, 06:17 PM

I think this needs to be discussed on Saturday night.

fst · #5 01-10-2008, 06:28 PM

nice, im still up for saturday.

Incomudrox · #6 01-11-2008, 12:23 AM

I'd really like to do this too see where I am making power and adjust my shift points accordingly. Maybe we can do this after my intercooler goes on lol.

Ron Vogel · #7 01-11-2008, 09:10 AM

Originally Posted by SD GTP

I feel like hitting the Dyno to see what kind of power the GTP is pounding down with the headers, 3.25, and the new exhaust. I'm shoot for somewhere in the 330-350 crank HP range after being at 300hp at Carlisle. I'm going to try to find a decent shop and go from there but I figured I'd see if anyone else is interested.

With those mods, It's probably at a solid 250, maybe 255 to the wheels.

SD GTP · #8 01-11-2008, 10:01 AM

The car dynoed at 241.1 WHP @ Carlisle on the Dyno without the headers, exhaust, tune and 3.25" pulley. They had told me what the conversion was to calculate crank HP but I forget what it was. I believe they had said the car was making ~295 HP at the Crank.

I would think with those mods added to the equation, it should pull more than 255.