ATI 25% underdrive
#1
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ATI 25% underdrive
What do you guys think of this one? ATI 25% underdrive pulley. I'm looking for quality damping over underdrive but it is an ATI. Do you think some dampening is sacrificed for the smaller diameter? ATI 918844
#2
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I spoke with one of the ATI engineers a number of years ago at Corvettes at Carlisle. He told me that anything more than 10% would sacrifice the damping capability. It sounds to me like ATI caved to market pressure of selling a 25% reduction. I am running their 10% under drive on my car.
Last edited by vettenuts; 11-19-2013 at 03:50 AM.
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Running the ATI 10% here. Car runs great to a 7k redline. Though I ran an ASP 25% in the past with no issues. I thought the ATI might be worth a few hp to hit my 500 rwhp goal.