Thread: Upgrading pullys

HAHAHAHA!

NO!

Use the search bar!

read this, print it out re read it lol http://www.grandprixforums.net/safel...car-17482.html

Stock engine you don't really want to drop pulleys unless you are getting 0* KR Then you could drop down to a 3.6 but you'll likely knock quite a bit on it.

after seeing people ask this so many times im just going to say you should be safe dropping to 2.8 on a stock car, as long as the pulley fits who cares LOL

Originally Posted by fisher580

after seeing people ask this so many times im just going to say you should be safe dropping to 2.8 on a stock car, as long as the pulley fits who cares LOL

I think 2.8 actually wont fit, doesnt the snout of the blower have to be machined to work a 2.8?

i thought it was 2.7 or lower but i could be wrong, so lets say a 3.0 on a stock car LOL

Machining the snout is required anything below 2.7

im pretty confident on that.

So i say, machine the snout, run a 2.55 on a stock car.

or maybe twin charge at 25 psi from turbo on a stock car, maybe change plugs all will be well