03-09-2018, 04:30 AM
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#11 (permalink)
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Enthusiast Member
Join Date: Feb 2011
Location: ontario
Posts: 370
Drives: 09 370z touring
Rep Power: 16
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Quote:
Originally Posted by Jinxx
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
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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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