Im not exactly sure what the A trim puts to the ground at 6psi, but the S trim on a bone stock engine at 8 psi put a 91 lx down the quarter in 12.7 with drag radials and an aod. (about 350 hp at the flywheel) Vortech advertises the A trim to add 75 hp at 6 psi.
I have one additional question, being that i have a certain purpose for the supercharger, and i dont want or need a whole lot of boost, i think i might go with the A trim, but i hear that the bearings in the A trim arent as good, and the term really old technology was used... this true??
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