LSchicago
Well-Known Member
- Thread starter
- #76
I Suspect there's more to your car's story if it only made 6. I assume yours is not 2018 or up. Crank pulleys are different. Procharger spec'd a 4.38 pulley for 12#. I have a 4.5" now to tune on 93 first (10 PSI). Lund didn't want to tune for 93 with the 4.38. If I need to go smaller I will, my goal is to get to 13-14# with the MAK H2 intake.my 4.38 pully made 6# of boost. I switched it out with a 4" and made 7#. Interesting to see how you get to 12#. I also have the P1x and cut gears.
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