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NST pulleys - these were on when we did the dyno runs, and for most of the season. Once we started running 7300+rpm on the track the crank pulley failed, so we went back to stock.
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am i reading this right? you had the NST pulleys installed, then when u tweeked the engine and started running higher revs the NST crank shaft pulley broke? how bad was the damage?
also, im assuming that the NST pulleys are a bad idea for running past the stock rev limiter then?
this worries me cuz i just installed these guys and i autocross. sometimes on a quick straight i will stay in second and let the rev limiter bounce if there is a quick turn not to far but would be losing time if i go to third.