Quote:
Originally Posted by d-mob
thanks for the helpful info brother, I was actually considering doing the upper so I would have access to do the solid isolator as well.
I'll probably do both but what size do you advise me to choose.
I was thinking of 2.55 upper, and 8.6 lower.
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I went with a Vengeance stage 1 kit 2.55 upper for the benefit of the isolator as well...My future plan is to add a lower 8.66 to stay within the safe zone of the supercharger...So I would agree with your choice of pulley's and the reasoning to include an upper...As you continue to build it will be easiest to change the lower pulley, as many don't want the 2.38 upper due to belt slippage...