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Old 06-12-2016, 04:19 PM   #1
taylorjwbrown
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Damn you belt slip!

Got the car done and dyno'd Saturday morning. After getting the misfires from shitty old plug wires taken care of. Car made 470 with a ton of belt slip. 7.5 lbs full boost dropping to barely 4 between 4-4500rpm. Have an ecs tensioner already installed so my guess is shitty belt.

Just ordered the gator green belt. Should be here in a couple days. See what happens.

I saw a writeup for adjusting the rear pulleys as well, anyone done this? How hard was it with the maggie still on the car?

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Old 06-12-2016, 05:09 PM   #2
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Goodyear gatorback and Gates green stripe are two different belts. Which one are you talking about?
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Old 06-12-2016, 05:17 PM   #3
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Sorry typo, gates green.

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Old 06-13-2016, 05:01 AM   #4
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I feel your pain!

My belt was slipping and riding off center on the Power steering pump while at the dyno. I put a Gates on and added the maggie HD tensioner. Had to push the PS pulley back also. Vortech T Trim off the PS pulley setup. Got up over +550whp, but with the slip fixed IDK where i am exactly.

Tuner said i am real close with the tune and with no slips, tune should still be right on when boosting up top.
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Old 06-13-2016, 05:03 AM   #5
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I would also like a green gates, had a hard time finding the stock assembly size belt in Gates green. Just have gates high performance from Oreilly's, there in store stock.
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Old 06-14-2016, 05:24 AM   #6
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Whatever your belt number is, add HD to the end of it and that is the green belt. They can get it or you can order from Amazon cheaper.
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Old 06-14-2016, 06:32 AM   #7
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thanks!
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Old 06-14-2016, 06:36 AM   #8
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Gator backs were an improvement for me.. but every setup is different.
Would slip at around 8psi until I tried a gatorback and a new tensioner.

4000rpm

Last edited by LS2-GTO; 06-14-2016 at 06:53 AM.
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Old 06-14-2016, 06:47 AM   #9
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Around 8000RPM??


Maggie like Taylor?
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Old 06-14-2016, 02:55 PM   #10
taylorjwbrown
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Ya I found the green belt on a website. Ordered it half an inch smaller than I have now. I have an ecs tensioner so I should he good there.

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Old 06-17-2016, 07:09 AM   #11
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Think I got the belt slip fixed. Got my green stripe in yesterday, threw it on. Went to my brothers did a few pulls and looks like I'm around 9 psi or so all the way through to 6500rpm.

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Old 06-17-2016, 09:54 AM   #12
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Nice!
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