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Old 07-18-2018, 02:30 PM   #1
4U2NV-SS
 
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Overdrive pulley...

So what OVERdrive balancer set up is everyone running that is no LSA?

How much overdrive are you running, ex. 8%, 10%, 12% etc

Does ATI make a complete 8 or 10 rib pulley kit?

Thanks
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Old 07-18-2018, 02:54 PM   #2
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10 rib ati 6% od here

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Old 07-18-2018, 04:48 PM   #3
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NICE!!! why only 6%? because 10 rib?

^^ Can I get that part # by chance?
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Old 07-18-2018, 06:58 PM   #4
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The bottom one 10 rib, 6%od is the max

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Old 07-22-2018, 07:48 PM   #5
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I believe Innovators West offers a 10% OD, as well as a complete pulley kit.
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Old 07-23-2018, 03:17 PM   #6
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You should look at diameters instead of % with these. Innovators West say 10% but it's actually an 8" crank. The ATI 6% OD balancer is actually 8.19" so bigger than the Innovators. ATI 4% OD is 7.95" and that's what I have.

I never understood Innovator's % because they say std diameter is 7.25" when it's really 7.5" on our cars.
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Old 07-23-2018, 03:26 PM   #7
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My ati od 10 rib balancer us 6% od. 8.19

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Old 07-24-2018, 02:32 PM   #8
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Quote:
Originally Posted by RedRyder View Post
You should look at diameters instead of % with these. Innovators West say 10% but it's actually an 8" crank. The ATI 6% OD balancer is actually 8.19" so bigger than the Innovators. ATI 4% OD is 7.95" and that's what I have.

I never understood Innovator's % because they say std diameter is 7.25" when it's really 7.5" on our cars.
Thank you. Good to know.
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Old 07-25-2018, 10:44 AM   #9
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All of the percentage calculations were made based on the LS1 Corvette back in the 90s, GM has since changed the balancer standard size many times so what is listed as a 10% over the old LS1 might only be a 4 or 6% on the LS3.

I got bit by this back in 2010 when we purchased an IW Standard size 8 rib and ended up with less boost on a Maggie, turns out the standard size is not standard for an LS3.
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Old 07-25-2018, 11:55 AM   #10
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So does anyone know the standard size of a stock 2012 Camaro LS3 balancer?

Been looking online and from what I found is 7.7"

Can anyone confirm?
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