Pulley Sizes and their Respective Boost Levels...?

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Feb 22, 2005 | 09:30 PM

Ferocity02

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Pulley Sizes and their Respective Boost Levels...?

Is there a chart or something I can look at to get an idea of how much boost each pulley size will make? Right now I have a 3.00 pulley which I think will make too much boost for my stock motor on the D1SC. Thanks

Feb 22, 2005 | 11:04 PM

Avengeance

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From: NorCal

Quote:

Originally Posted by Ferocity02

Give Keith a call at FFP, he'll know what a 3" pulley is good for. Its also depends on your crank pulley size. Keith also stocks several blower pulleys incase you need something different.

FFP 916-331-1611

Feb 23, 2005 | 12:15 AM

LSs1Power

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Whats the crank pulley size?

Feb 23, 2005 | 12:18 AM

Ferocity02

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It's the standard ATI 6-rib pulley, I think its about 5-3/4"

Feb 23, 2005 | 12:28 AM

LSs1Power

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Quote:

Originally Posted by Ferocity02

It's the standard ATI 6-rib pulley, I think its about 5-3/4"

That should the D-1SC around 48700rpm at 6200rpm. Im running mine at 47200rpm and seeing 8psi at 6500rpm. U might see 8-10psi with the 3.00 pulley around 6200rpm. Good luck.

Feb 24, 2005 | 01:48 AM

BudH

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3.4 inch pulley on stock crank pulley = 10 lbs on my car!

Stock block
1.85 rockers / LS6 valve springs
Jet Hot Headers
LS6 intake

A 3 inch pulley will most likely give you problems with belt slip due to the small pulley size!

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