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Old 10-05-2009, 10:19 PM   #1
The Architect
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Shorter Serpentine Belt?

I may potentially need a shorter belt due to a smaller alternator pulley.

I believe the stock pulley is 3 inches and the one Ill be using would be 1 5/8 inches coupled with the %10 under drive pulley that make for an almost 2" loss.

Does anyone know How I would go about making up for this loss?
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Old 10-06-2009, 12:07 AM   #2
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if your using the NST underdrive kit with the 3 pulleys then you dont need a new belt. the stock one will work fine.
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Old 10-06-2009, 12:15 AM   #3
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A NAPA store should be able to look-up a compatible belt in any length you need, if its made. Others could too, but NAPA stores seem to have more knowledgeable/willing staff.
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Old 10-06-2009, 12:16 PM   #4
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Go out and buy like the next 3 smaller sized belts belt and test fit. That is what I had to do on a s/c install I did recently and then returned the ones I didn't need.
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Old 10-06-2009, 01:01 PM   #5
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i had to buy a smaller belt when i put the nst underdrive on....but i don't have a/c

went 36" to 35.5"
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Old 10-06-2009, 07:27 PM   #6
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thanks guys. dom at irragi alts has the half inch shorter version which should be just fine with the smaller diameter alt pulley (1 5/8)

i forgot how easy it is to move the alt forward and backwards to adjust.
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Old 04-20-2021, 10:42 AM   #7
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Quote:
Originally Posted by thebarber View Post
ii had to buy a smaller belt when i put the nst underdrive on....but i don't have a/c

went 36" to 35.5"
grave digging for the #QCyaris!
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