The Supercar Registry - Reproduction fan belts

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The Supercar Registry (https://www.yenko.net/forum/index.php)

- Supercar/Musclecar Discussion (https://www.yenko.net/forum/forumdisplay.php?f=79)

- - Reproduction fan belts (https://www.yenko.net/forum/showthread.php?t=166061)

L78racer

03-01-2021 04:12 AM

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Several years ago I talked to Quanta about the situation. Their reply "Gee, you're the first person to have that problem".
I found some NOS GM belts for the short belt (crank to water pump) and the alternator belt. Been down the 1/4 mile many times with not one issue. The short belt definitely helps keep the stress off the alternator belt.

Damien

03-01-2021 09:39 PM

Quote:

Originally Posted by NorCam (Post 1539481)

I tried everything I could find in the last couple of years to see what would work with deep groove pulleys. Everything was either cogged on the top or the bottom. Even the Gates belts were cogged on top, and the Gates worked the best of all of them. I tried a few Quanta's, Napa's, and others, Most either squealed like a pig, slipped and screamed at high rpm, rolled over and/or were pitched right off.

My Chevelle's belts have started squealing at low rpm! I've tried changing them up to no avail! Its a right PITA.

Mixedmuscle

03-17-2021 01:20 AM

Thanks for the input on Quanta belts. I have them on my 72 LT-1 survivor and will definitely be changing them out for current belts. I also have repros on my 71 Boss 351 - Marti belts, I believe. Are they prone to the same problems?

Mr70	03-17-2021 02:08 PM

I've had good luck with Quanta.

NorCam

03-18-2021 02:06 AM

Quote:

Originally Posted by Damien (Post 1539560)

My Chevelle's belts have started squealing at low rpm! I've tried changing them up to no avail! Its a right PITA.

Are any of your pulleys powder coated?

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