Just got a KB from a friend, and I need pulley combos and how many pounds they make. I have a 2.50, 2.75 and 3.0 uppers. Combined with 4 and 6 pound lowers how much boost do I get?
KB pulley combos
- Thread starter LOKOSVT
- Start date
It depends do you have a built block? I jst bought a KB and have a 4# lower so I was told not to run smaller than a 3.0 without a built block? They said with that combo i would be around 14-15 pounds?
Stock block, but ive read about some guys running more than 16#s. I want to get a 16# combination.
From their website:
• Approx. 10HP per psi boost, easily adjusted with pullies.
• 3½" (9 psi), 3" (12.5 psi), 2¾" (14.5 psi), 2½" (16.5 psi) with stock 7½" crank pulley.
• 3½" (13.5 psi), 3" (18.0 psi), 2¾" (20.5 psi), 2½" (22.0 psi) with 9" crank pulley.
• Approx. 10HP per psi boost, easily adjusted with pullies.
• 3½" (9 psi), 3" (12.5 psi), 2¾" (14.5 psi), 2½" (16.5 psi) with stock 7½" crank pulley.
• 3½" (13.5 psi), 3" (18.0 psi), 2¾" (20.5 psi), 2½" (22.0 psi) with 9" crank pulley.
Loko, thats probably going to blow up your engine. 14 pounds is better, a little less if you are going to get on it in the cold air. KB maxes at 22 pounds.
EvergreenSVT said:
9" is a 6# pulley correct?
In thier website if you go to pulley page it states a different boost level.
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