Pulley size for Whipple 3.4l /w Crusher intake

Dr. Boost · #1 (**permalink**) 04-24-2009, 09:26 PM

Is there a pulley chart out there for the 3.4L set up? What size pulley should I be running up top on a 04 Cobra with stock lower? I'm looking for 23 or 24 lbs. ? Any help would be great.

Rob

jared@lethal · #2 (**permalink**) 05-04-2009, 01:43 PM

Quote:

Originally Posted by Dr. Boost

Is there a pulley chart out there for the 3.4L set up? What size pulley should I be running up top on a 04 Cobra with stock lower? I'm looking for 23 or 24 lbs. ? Any help would be great.

Rob

Rob,

The 3.4L crusher comes with a 3.5" pulley. I've been told it makes about 26psi with the stock crank pulley on a stock longblock. That being said you would want to run a 3.85" upper or the 6.5" lower to lower the boost to about the 23psi range.

Please let us know if you have any other questions.

Thanks, Jared