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Gtm Supercharger pulley discussion

I run with a 85mm on a stage 2 supercharger and it maxes out the supercharger at about 7.1k rpm .....I think the stage one supercharger can handle the 84..better

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Old 02-17-2017, 07:21 PM   #2 (permalink)
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I run with a 85mm on a stage 2 supercharger and it maxes out the supercharger at about 7.1k rpm .....I think the stage one supercharger can handle the 84..better but I'm not sure ...the 88mm is best matched to max out your supercharger at your 7500rpm ....the issue I had with my fuel system was fuel pressure drop and starvation at higher rpm larger injectors would magnify the pressure drop and I didn't want to risk the motor on what I felt was a unstable setup ..even tho some do run stock fuel system over 500 whp..I just felt safer...there is always a risk of popping the engine ...but greater risk if fuel system is at its limits ....and yes you can set limiter down lower depends on if you want to redline your car or not ..using the 84mm or the 85 mm I wouldn't run past 7k very often ..but that's my opinion .....with the 85mm on the stage 2 I got 523whp and 395 torque...if you want more torque ..it would be safer to go turbo IMO..

Another option would be to upgrade fuel system with e85 ....that would get you more hp and torque and maximize output ...if e85 is available near you

Last edited by Jinxx; 02-17-2017 at 09:11 PM.
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