Blower pulley modification
11-10-2009, 04:23 PM
#1
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Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Blower pulley modification
Found this on eBay.
Drill holes in pulley and slot the belt surface. Good? Bad? No difference?
http://cgi.ebay.com/ebaymotors/Proch...mZ330375551441
Drill holes in pulley and slot the belt surface. Good? Bad? No difference?
http://cgi.ebay.com/ebaymotors/Proch...mZ330375551441
11-11-2009, 03:30 PM
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Car: 1993 Toyota Supra
Engine: Inline 6
Transmission: 6 Speed
Axle/Gears: 3.13
Re: Blower pulley modification
Reichard Racing does something very similar to the pullies. Their theory is that drilling the holes creates a vacuum effect on the belt.
11-11-2009, 05:11 PM
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Car: 1986 Iroc
Engine: 5.3
Transmission: 4L80E
Axle/Gears: 9 Inch w/ 3.55
Re: Blower pulley modification
Most people I see with super charger get the slots cut. The only problem is if the belt slips it really chews up the belt.
11-11-2009, 05:56 PM
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Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Re: Blower pulley modification
Do you think modifying the stock pulley in that manner is safe? I don't want the pulley to come apart or something along those lines.
11-11-2009, 08:14 PM
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11-12-2009, 05:40 PM
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Car: '89 GTA
Axle/Gears: 3.27/9-bolt
Re: Blower pulley modification
Pretty cool, I wonder if it actually works, or is as good as the Reichard Pulleys.
I was just about to buy one at the cost of $160ish.
I was just about to buy one at the cost of $160ish.
11-13-2009, 09:50 AM
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Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Re: Blower pulley modification
The ad is what gets me though. Usually when someone offers a service on ebay, it's usually a buy it now, not an auction.
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11-14-2009, 04:41 PM
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Car: 1993 Toyota Supra
Engine: Inline 6
Transmission: 6 Speed
Axle/Gears: 3.13
Re: Blower pulley modification
Let us know how the machine work is if you end up doing it. The Reichard pullies are done on a CNC machine....hopefully the ebay service is as well.
11-14-2009, 10:30 PM
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Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Re: Blower pulley modification
I am looking for another pulley for a cheap first. I don't want to get the one I have on my blower done in case I am not satisfied with it.
11-14-2009, 10:33 PM
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11-15-2009, 01:30 PM
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Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Re: Blower pulley modification
I have a 4" pulley I will be running on my D1. I have no idea if the novi and procharger hubs have the same shaft diameter. I would guess they probably do not.
11-15-2009, 01:58 PM
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Car: 92 Z28
Engine: Boosted LSX
Re: Blower pulley modification
doin some reading they are the same but a different key is what someone said. I'll do some mor checking. I have a 3.75 pulley to get rid of. and a 3.5 on my head unit now. Im looking to drop down to a 3inch pulley.
11-15-2009, 10:10 PM
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Car: '89 GTA
Axle/Gears: 3.27/9-bolt
Re: Blower pulley modification
I'm in the same boat as 3rd gen Will, not wanting to mutilate my only pulley in case it's not great.
I have a 3.7" Procharger pulley, looking to stay the same, if not slightly smaller.
I have a 3.7" Procharger pulley, looking to stay the same, if not slightly smaller.
11-15-2009, 10:39 PM
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Car: 92 Z28
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Re: Blower pulley modification
I just emailed a buddy of mine who has a machine shop that could do this. I might send him my extra pulley just to see how it works out.
11-16-2009, 10:56 AM
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Car: 91 Z28, 2000 T/A
Engine: SBC 355, LS1
Transmission: T56, T56
Axle/Gears: 10bolt 3.73, 3.42
Re: Blower pulley modification
I was watching a 4" pulley on ebay and forgot about it, it only went for 33 bucks to dammit! haha
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