Who makes 8 rib pulleys for Vortech?
11-28-2004, 07:43 PM
#1
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Car: 1987 Iroc, 1987 MCSS TPI
Engine: 5.7L
Transmission: 700R4 in both
Who makes 8 rib pulleys for Vortech?
Looking to replace my stock 6 rib pulleys for my s-trim with 8 rib. Does anyone make them? I've been dealing with a slippage problem. I solved the problem by putting the tensioner on the top side of the belt, in other words the tensioner pulley is before the charger, this actually works great, it keeps the belt from riding off the top of the pulley at high rpms. But the truth is I know an 8 rib will be better, just need to know where to buy them.
11-28-2004, 11:56 PM
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Car: 1991 Camaro Z28
Engine: Supercharged 383 TPI
Transmission: TH-700R4
Poke around Vortech's website. I've seen 8-rib pulleys somewhere on there. Also, can you post a picture of your tensioner mounting? I throw my belt at high rpm and was looking for a solution.
11-29-2004, 06:47 PM
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Car: 1987 Iroc, 1987 MCSS TPI
Engine: 5.7L
Transmission: 700R4 in both
I took a couple pics. In short (if my memory is good) I removed the stock tensioner from the unit, I took the pulley off the bracket & flipped the bracket over & installed pulley back into same hole, then bolted back on sc unit on the upper holes. It will make sense when doing it. There are lots of mtg holes. I am still running the stock length belt. Basically at high rpm the top side of the belt moves in an arch that gets higher & higher, eventually it causes the belt to slip or fall off. By keeping the belt down low as it feeds onto the pulley this is eliminated. It only took 10 minutes to do & no money spent.
11-29-2004, 06:54 PM
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Car: 1987 Iroc, 1987 MCSS TPI
Engine: 5.7L
Transmission: 700R4 in both
I posted two more pics, but they are not here, If you want to see them shoot me an e-mail & I'll send them.
11-29-2004, 07:40 PM
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Car: 1988 camaro z28,1997 camaro lt1
Engine: 355 afr 195 heads,tpis big mouth
Transmission: 700r-4 built by me 3-4 z pack
Axle/Gears: 3.42
look at www.superchargerhelp.com they sale brackets& pulleys 6 or 8 rib. look at sch racing products at top.
11-30-2004, 06:37 AM
#7
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Car: '88 Formula, '94 Corvette, '95 Bird
Engine: LC9, 355" LT1, LT1
Transmission: T5, Zf6, 4L60E
Axle/Gears: 3.42, Dana44 3.45, 3.23
Originally posted by 87tpi7749
more pics
more pics
The belt slipping and flying off is usually from compressor surge. Mine would jump on every pass. Got a BOV from a DSM, and now its perfect.
-- Joe
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11-30-2004, 08:36 PM
#8
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Car: 1991 Firebird Formula
Engine: 383 Supercharged and Intercooled
Transmission: 6-Speed
Axle/Gears: Stock 10 bolt 3.42
Here is what I did, going way back.
https://www.thirdgen.org/techbb2/sho...ech+rib+pulley
ASP made me a nice 8 rib 7.5" SC crank pulley with an underdrive 6 rib accy.
I am also setting up my tensioner pulley on the top side, but I am fabricating a spring tensioner set-up using this tensioner.
https://www.thirdgen.org/techbb2/sho...hreadid=260595
I should have no slipage problems.
https://www.thirdgen.org/techbb2/sho...ech+rib+pulley
ASP made me a nice 8 rib 7.5" SC crank pulley with an underdrive 6 rib accy.
I am also setting up my tensioner pulley on the top side, but I am fabricating a spring tensioner set-up using this tensioner.
https://www.thirdgen.org/techbb2/sho...hreadid=260595
I should have no slipage problems.
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