Topgunz - air to air upgrade

TBatt

Is this what you are referring too?

8-Rib High-Traction Supercharger Pulleys


8-Rib High-Traction Supercharger Pulleys | Vortech Superchargers

If so what size is for 9Lb?

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

milkcow500

You can only order the 9psi one from Stillen directly. It is a 2.75" pulley.

TBatt

Ok, is this the jackshaft pulley or the SC pulley? Vortec has pulleys too.

I don't want to deal with Stillen for this. I would prefer to get the parts from Vortec. I just want to be sure I get the correct one.

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

Pauly Z

You can also order it from Vortech or 928 motorsports.

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Custom Air to Air Stillen SC Setup, CJM S-1S FRS, ID1000 Injectors, Aeromotive 340 Stealth Pump, Test Pipes, Topspeed Exhaust, Z1 Oil Pan Spacer, Swift Springs, Adjustable Rear Camber Arms, 20 and 25mm Spacers, Custom Gauges, and Ecutek

TBatt

I just called Vortech and they were no help. They only supply the SC and Stillen supplies the pulleys.

So, it looks like if I measure the diameter of the stock pulley on the SC and then go to the next size down in diameter I should be at the 9lb level, correct?

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

Pauly Z

The 9lb pulley has been measured and is 2.75. Vortech sells pulleys, they are on their website. The second you mention stillen, they will refer you to them.

Sent from my SM-N920V using Tapatalk

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Custom Air to Air Stillen SC Setup, CJM S-1S FRS, ID1000 Injectors, Aeromotive 340 Stealth Pump, Test Pipes, Topspeed Exhaust, Z1 Oil Pan Spacer, Swift Springs, Adjustable Rear Camber Arms, 20 and 25mm Spacers, Custom Gauges, and Ecutek

TopgunZ

Thats the first time i have heard of Vortech not being helpful. Their customer service is da bomb.

Both the jackshaft pulley and supercharger pulley are 3.20"'s. You need a pulley that spins the supercharger to 56K. So a 2.80" on the supercharger will spin it to 55,600 which is 1,000 less than the 9psi stillen pulley.

HOWEVER, i cant remember if that combination will allow the belt to be tensioned properly. It might run out of room to crank up to get the belt tight enough. Can someone chime in here?

PS However, you can get a 3.4" jackshaft pulley and a 3.0" supercharger pulley and it keeps the exact same tension and will spin it at 55,150. If you want to spin it harder a 2.9" would fit and spin it to 57K. Buying two vortech pulleys is the same cost as buying one stillen pulley and it will grab better this way.

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

JWillis72

I'm on the 2.8 supercharger pulley but went to a 2" tensioner pulley, the part number in in the big thread somewhere. It could work with the stillen one but I didn't try.

TBatt

That is the info I was needing. Thanks!

Time to go spend more $$. Builds would be a lot more fun if they didn't cost so much.........

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RJM pedal, Hotchkis Sway Bars, FI TDX, FOG Light, Z1 Slotted Drilled rotors, Stillen SC, Quaife ATB, Z1 Oil cooler, AEM Gauge Set, Galeforce gauge mount, Avant Garde M590 Hypersilver w/RE-11, TopgunZ A2A kit., ECUtek tuned by Seb: ROLL TIDE!

EVOHUNTER

Me, Willis and Topz all did some modding on the charger side.

I had a new tensioner bracket made, 3" idler pulley. 2.75" on blower, stock Jack and stock serp side.

Ill see if I can find it.

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TopgunZ

I had a new tensioner bracket made, 3" idler pulley, 3.0" blower, stock jack and custom 2.90" serp side..lol..

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

Pauly Z

With changing the idler pulley size, is there a need for a new tensioner btacket?

Sent from my SM-N920V using Tapatalk

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Custom Air to Air Stillen SC Setup, CJM S-1S FRS, ID1000 Injectors, Aeromotive 340 Stealth Pump, Test Pipes, Topspeed Exhaust, Z1 Oil Pan Spacer, Swift Springs, Adjustable Rear Camber Arms, 20 and 25mm Spacers, Custom Gauges, and Ecutek

TopgunZ

Nope. It just takes up more space to run a smaller pulley setup. We upgraded our brackets cuz we were worried about flex

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ROTREX SUPERCHARGER TUNER KITS - $6799/ CUSTOM STILLEN AIR TO AIR KITS -$2100/ 700+ WHP!! WWW.TOPGUNSPEEDWORKS.COM

EVOHUNTER

Correct me if im wrong, I had my bracket extended about an inch aswell because my 3" wasn't taking up the required tension? I could be wrong but I swore mine wouldn't tighten down without the extended slot.

I forgot which thread we did this all in? I couldn't find it

Can you find it topz?

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EVOHUNTER

Found it!!

Stillen Air to Air setup

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