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Old 02-03-2017, 02:13 PM   #1
AleroB888
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MP 62 kit belts

Does anyone know the belt sizes for using a 2.4 inch and/or 2.2 inch pulley on the kit? The markings have rubbed off on mine, and someone else is starting an install with a 2.4 or 2.5 pulley.
Thanks!
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Old 02-04-2017, 10:17 AM   #2
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Original manual calls for a Gates k061037... Google search says 104-1/4" and that's the 2.8 pulley
Through calculations with a friend he's come up with the Gatorback 4061030 at 103" being correct for a 2.4 pulley

That's all we've come up with so far...
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Old 02-17-2017, 10:55 AM   #3
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AaronGTR has made plenty of valid pointsAaronGTR has made plenty of valid points
I use a 103" Gatorback with my 2.2" pulley. Don't recall if that fits with my 2.4" or not, I'd have to look at the car. I do remember I tried several different combinations of pulley size and belt length, and if you don't have it just right, the belt either rubs the tensioner, or the tensioner extends all the way and you lose some belt tension causing it to squeal.
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Old 02-17-2017, 03:32 PM   #4
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Quote:
Originally Posted by AaronGTR View Post
I use a 103" Gatorback with my 2.2" pulley. Don't recall if that fits with my 2.4" or not, I'd have to look at the car. I do remember I tried several different combinations of pulley size and belt length, and if you don't have it just right, the belt either rubs the tensioner, or the tensioner extends all the way and you lose some belt tension causing it to squeal.
Thanks for the reply...

I have a new Duralast belt here that I bought years ago and kept in the car as a spare, but I can't remember which supercharger I had at the time, or which car it was in, .

It's labeled as 1030K6 (old no.), 6PK2615.

I also used larger idlers at times to take up the slack.
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1999 GLS MP90 supercharged / 2003 GL MP62 supercharged / 2004 GLS stock
Magnuson MP90 / TOG's / 3 in. Magnaflow exhaust / MSD ignition / LS1 MAF / Racetronix pump / HP Tuners / TCE 68mm TB / 36 lb Inj
= Best track time: 12.951 @ 104.48, 1.839 60 ft. (Beech Bend Raceway Park, 11-23-13), 50 Deg. F
http://www.youtube.com/watch?v=hpVYZPbpPzk
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Old 02-18-2017, 08:44 AM   #5
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Greg wanna buy my car and supercharge it? ::
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Old 02-18-2017, 10:42 AM   #6
AleroB888
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Quote:
Originally Posted by sleepyalero View Post
Greg wanna buy my car and supercharge it? ::
Yeah, but I don't have room for it now, or the time to work on anything
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1999 GLS MP90 supercharged / 2003 GL MP62 supercharged / 2004 GLS stock
Magnuson MP90 / TOG's / 3 in. Magnaflow exhaust / MSD ignition / LS1 MAF / Racetronix pump / HP Tuners / TCE 68mm TB / 36 lb Inj
= Best track time: 12.951 @ 104.48, 1.839 60 ft. (Beech Bend Raceway Park, 11-23-13), 50 Deg. F
http://www.youtube.com/watch?v=hpVYZPbpPzk
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Old 02-18-2017, 11:48 PM   #7
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Quote:
Originally Posted by AleroB888 View Post
Yeah, but I don't have room for it now, or the time to work on anything
Damn
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