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May 19, 2021 | 09:05 AM

Rscaamaro

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Single turbo ls

using a f body ls1 assessory drive on my single turbo ls swap. The belt always walks a cog or 2 on hard pulls. Whats the fix

Last edited by Rscaamaro; May 19, 2021 at 02:31 PM.

May 19, 2021 | 01:48 PM

mightyquickz28

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I would suspect you have a slight alignment issue with one of your pulleys.

Quote:

Originally Posted by Rscaamaro

using a f body ls1 assessory drive on my single turbo ls swap. The belt always walks a cog or 2 on hard pulles. Whats the fix

May 19, 2021 | 02:35 PM

Rscaamaro

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Quote:

Originally Posted by mightyquickz28

I would suspect you have a slight alignment issue with one of your pulleys.

my first turbo ls, didn't know other had issues with ls belt jumping on high horse power applications. I see lot of people running solid belt tensioner?

May 19, 2021 | 06:14 PM

mightyquickz28

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Certainly, that's what I'm running . Not so much because I want to but because of the fitment of the turbo/componentry, I didn't have an option for a traditional tensioner. I've seen videos of the front of the engine when people dyno with the automatic tensioners and those things were getting a workout.

Quote:

Originally Posted by Rscaamaro

my first turbo ls, didn't know other had issues with ls belt jumping on high horse power applications. I see lot of people running solid belt tensioner?

May 19, 2021 | 06:36 PM

ddnspider

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Katech manual tensioner.

May 19, 2021 | 09:13 PM

3 window

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I run all gm parts (water pump, tensioner, balancer) and my belt would move 1 rib forward after hard hits. Come to find the tensioner needed to be spaced out a bit. No issues anymore. Throw a straight edge across the front of all the pulleys and see where you’re at.

May 20, 2021 | 10:33 AM

Forcefed86

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Its not the tensioner or the HP. The pulleys aren't aligned properly if you are throwing/walking belts. A factory tensioner in good shape will hold a belt past 8k easy. Trying to band-aid fix the problem with a manual tensioner isn't the answer. I like to use TIG welding rod to drop in the grooves. Its pretty easy to see a misalignment this way. Good luck, it can be a real pain!

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May 20, 2021 | 02:10 PM

ddnspider

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Quote:

Originally Posted by SLOW SEDAN

$60 version has held 8500 RPM just fine. https://www.amazon.com/Manual-Tensio.../dp/B077PL3VPD

mine was $0.

May 20, 2021 | 02:25 PM

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Forcefed86

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I had some issue with a straight edge as the pulley face to 1st rib isn't the same on all pulleys. Not that it can't work, but I fought mine forever with that method. I couldn't see how bad mine was until I laid (tried to lay) a few welding rods across the grooves.