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Old 03-09-2018, 05:30 AM   #53 (permalink)
tiller
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Join Date: Feb 2011
Location: ontario
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Drives: 09 370z touring
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Quote:
Originally Posted by Jinxx View Post
The 85 mm pulley is running 96k impeller speed at 7.5 k rpm and 90k at 7k rpm

Using a 80mm would be running 102k impeller speed at 7.5k rpm and 95k at 7k rpm

That might be stressing the rotrex pretty hard
Yes, I ran mine all last summer with 85mm at 7.5k with no issues as of yet, I’ll retune n try the 80mm at a 7k redline, like I said I usually don’t redline the car often I’d like to see what type of power differences there is lower in the rpm range where I like it, also may even try some different rear gear ratios as well
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