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Topgunz - air to air upgrade

So my kit came with a 2.90" serpentine pulley. I was told that is the 9psi stillen pulley. It mustn't be. A few other guys have told me that their

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		Nissan 370Z Forum > Nissan 370Z Tech Area > Engine & Drivetrain > Forced Induction
Topgunz - air to air upgrade

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04-07-2016, 02:04 PM	#11 (permalink)
TopgunZ A True Z Fanatic Join Date: Jun 2012 Location: Minneapolis Posts: 2,651 Drives: 06 350Z , 09 370Z MT Rep Power: 6834	So my kit came with a 2.90" serpentine pulley. I was told that is the 9psi stillen pulley. It mustn't be. A few other guys have told me that their 9psi stillen pulley measures at 2.75". This is baffling as with that pulley and stock everything else, the supercharger is spinning at 56,611 rpms. It is only rated for 53K. Is this why stillen makes you sign the waiver? They are selling that pulley knowing it overspins that supercharger by 3,600rpms. ANMVQ likes this. __________________ ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

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