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2.0L LSJ Performance Tech 205hp Supercharged SS tuner version. 200 lb-ft of torque.

what is our stock pulley size?

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Old Apr 27, 2006 | 05:12 PM
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SS_SC_Cobalt
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From: Spaceball 1 or better known as CT
what is our stock pulley size?
I just got the gm charger kit for the j-bodys and the pulley seems different.it hits our tensioner..otherwise it is exact
anybody?
thanks!
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Old Apr 27, 2006 | 05:21 PM
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From: Delaware
3.34 I believe.
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Old Apr 27, 2006 | 05:28 PM
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From: Norwich NY
3.35 i thought it was....
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Old Apr 27, 2006 | 05:29 PM
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From: Spaceball 1 or better known as CT
Originally Posted by Xenozx
3.34 I believe.
that's what I thought, how do we measure it? is it outer rim measure or inner?
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Old Apr 27, 2006 | 05:33 PM
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From: USA
85mm ~3.346"
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Old Apr 27, 2006 | 06:24 PM
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From: RTP, NC
bigger pulley on jbody model cause they run less boost.
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Old Apr 27, 2006 | 06:32 PM
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From: Spaceball 1 or better known as CT
Originally Posted by zinner
bigger pulley on jbody model cause they run less boost.
zinner u know da size of the j bod or how to tk the measurement?
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Old Apr 27, 2006 | 08:00 PM
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From: Ajax
Originally Posted by silverSS
85mm ~3.346"
thats the right one
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Old May 4, 2006 | 12:40 PM
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From: Grosse Pointe Woods, MI
Measuring Pulleys
Originally Posted by SS_SC_Cobalt
that's what I thought, how do we measure it? is it outer rim measure or inner?
The Pulley is measured over pins. So with out a fixture it is virtually impossible to measure a pulley. The industry standard is to measure the diameter over 2.5 mm checking pins set into the belt grooves. So the Stage 2 pulley is 77.9 mm diameter over the pins. It measures 76.16 mm to the top of the belt grooves.
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