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300ZX (Z32) Performance / TechnicalDiscussions related to Turbo charging, Supercharging, Engine, ECU, exhaust, and etc. performance enhancements and Techical related.
i am looking into buying the unorthodox underdrive pulley, but ive heard that some underdrive pulleys tend to overcharge your battery. i was wondering if anyone has ever encountered this problem when adding underdrive pulleys to a Z.