Quote:
Originally Posted by Kev457
Hello guys,
I'm going to get a whipple on my car soon, but one thing that confused me is which pulley size should get?
My current setup is tsp stg3 cam with 32% fuel lobe, ported heads,headers and cai. And I will upgrade to the lt4 fuel system with the whipple.
I can only 91 or 94(provided by chevron, no idea how close is it to 93 in US) octane here in Canada.
Whipple comes with the 3.625 pulley, but I believe I can run the smaller one to have more boost 
Please help me out, thanks! |
The Chevron 94 is 94 octane and that is what I recommend you use, I would not exceed 10 psi boost on stock pistons on pump gas.
To get to 10 psi boost with your cam and mods you may need to move to a 3.5 or 3.375 only testing will say for sure as every combination responds differently.
Ted.