88mm supercharger pulley

Jinxx · 03-06-2016, 04:45 PM

Maybe I'm not looking at this right .....from my understanding the 88mm will be at 11lbs at around 7k rpm and would be just over make for the supercharger........and the 84mm is 14 lbs at the same point and even overspinning more .....so a 82mm would be like 17lbs at 7k and way above max range of supercharger .....I realize you are getting boost sooner in the rpm range but should be limited on how high you can run the engine rpm without risk of blowing supercharger/motor ......also if you don't rev to the upper limits of the rpm range would torque be lost even at a higher boost ?

pokeyl · 03-06-2016, 10:02 PM

Quote:

Originally Posted by Jinxx

Maybe I'm not looking at this right .....from my understanding the 88mm will be at 11lbs at around 7k rpm and would be just over make for the supercharger........and the 84mm is 14 lbs at the same point and even overspinning more .....so a 82mm would be like 17lbs at 7k and way above max range of supercharger .....I realize you are getting boost sooner in the rpm range but should be limited on how high you can run the engine rpm without risk of blowing supercharger/motor ......also if you don't rev to the upper limits of the rpm range would torque be lost even at a higher boost ?

OK, I don't do math, I just works for me. I even ran this with my 1.0 set up. That system made only 8 PSI due to restriction in the intake. 38-81 compressor

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03-06-2016, 04:45 PM	#1 (permalink)
Jinxx Track Member Join Date: Dec 2015 Location: South Carolina Posts: 699 Drives: 2017 nismo 370z Rep Power: 3377	Maybe I'm not looking at this right .....from my understanding the 88mm will be at 11lbs at around 7k rpm and would be just over make for the supercharger........and the 84mm is 14 lbs at the same point and even overspinning more .....so a 82mm would be like 17lbs at 7k and way above max range of supercharger .....I realize you are getting boost sooner in the rpm range but should be limited on how high you can run the engine rpm without risk of blowing supercharger/motor ......also if you don't rev to the upper limits of the rpm range would torque be lost even at a higher boost ?