Originally Posted by Evicerator
with a 4.5 I generally start out around 10:1 then go up from there... Generally I end up at either a 9.75 or a 9.5
Pink spring is about 18 lbs if my memory serves me right.
With 48p, I am running 81/21 giving me a final drive of 9.4 and my car is a slug. What could be wrong? What should the tightness of the belts be? Also, I hear a funny "whir" when it is getting up to speed. I too, am running a 4.5.