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Old 01-24-2020, 01:53 AM   #1
Gary H
 
Drives: Camaro ZL1
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Definitive belt size for 9.17" lower?

Hi all

Need a bit of help!
Car goes into the Shop on Monday and I've just received my Super Damper and 15% OD Pulley ( 916227).

The belt I received as part of the package is a K080842HD

The research I've done says most people use the 845HD or even the 845RPM.

Has anyone used the 842 or will it be too tight?
If I go 845, is it worth getting the RPM variant?

Many thanks and any help appreciated if I need to order something today and express ship across the Pond!
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Old 01-24-2020, 06:24 AM   #2
TMS
 
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I would recommend the 845HD belt for the 9.17 lower.

You might read through this post regarding my experience with the 842 and the 845 as well as the RPM vs the HD belts. Analysis is not scientific but the results speak for themselves.

You might be OK with the 842 in the HD variant. And you might be OK with the RPM in the 845 variant but not the 842RPM variant.


https://www.camaro6.com/forums/showthread.php?t=523261
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Old 01-24-2020, 06:49 AM   #3
XXX ZL1
 
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Don’t use the rpm belt. I broke one and most people have went back to the hd belt.
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Old 01-24-2020, 07:07 AM   #4
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I'd stick with the Gates HD Micro-V Belts. I've got the same balancer but maggy 2300 on the other end, no issues.

When you get it on look where you tensioner lands. Make sure it won't bottom out to the left or is so far right you don't have enough tension. Here is my K080859HD with 9.17" and 3" upper on my 2300.

This is a little left of center and is prior to first start so it will likely land in the center.
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Old 01-24-2020, 08:15 AM   #5
Gary H
 
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Quote:
Originally Posted by TMS View Post
I would recommend the 845HD belt for the 9.17 lower.

You might read through this post regarding my experience with the 842 and the 845 as well as the RPM vs the HD belts. Analysis is not scientific but the results speak for themselves.

You might be OK with the 842 in the HD variant. And you might be OK with the RPM in the 845 variant but not the 842RPM variant.


https://www.camaro6.com/forums/showthread.php?t=523261
Appreciate the response and thank you for that very informative post.
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Velossa intake and Rotofab - Mamo TB - Custom coated ported NX Lid & Jokerz Full tilt ported LT4 charger - 3 port CoolingMist Meth injection - ATI 15% lower pulley - TSP 1 7/8" ceramic coated longtubes, de-cat and Borla 60608 to NPP box, JRE tune, BMR rear control & trailing arms, lock-out kit, lowering springs and front strut brace, Custom carbon trim interior, Gyeon Ceramic protection, Xpel ultimate front PPF and Prestige window tint with Chameleon Windscreen tint...ever evolving...
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Old 01-24-2020, 01:22 PM   #6
Hyper_Zl1
 
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845HD on mine with a 9.17 lower
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