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Originally Posted by FATHER  Hi friends, a you know i have a m44 supercharger at 7-9psi, the great new is that i have a "free" ($200.00 and a set of use bmw seats)M44 engine remove from a running 318i, i want to convert those engine in a serious animal with the help of my brotjer and some mechanic that are my friends, 3 months ago i buy on ebay othe Nissan Frontier Eaton m62 supercharger, we are planing go close to 12-15 psi of boost the question is how i know the perfect size of the pulley i know that i current use a 3.4" pulley on my setup to run 7-9psi at max rev.. so how i calculate the numbers, thanks for read  Fernando Raul |
I have the 3.6" pulley and run ~9-10 psi. A 3.2" pully should be good for you.