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what size alt and crank pulley are you running now? i trans brake my car to 5000 and dont want to be losing belts..thanks



Sorry just looked at my notes 1.7 was my target ratio. Current pulleys 4.5 crank/2.5 alt 1.8 ratio. alt pulley is a little small, but I have had no trouble.

Around a 5"crank/3"alt (1.67 ratio) would be a good place to start.

sounds good i have a 5 inch crank pulley now will get a new 90 amp alt with 3 inch pulley,,thanks