Help For The New GM Spec 2.8 pulley!

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Aug 30, 2006 | 05:16 PM

#101

marerick007

Senior Member

Joined: 06-30-06

Posts: 2,647

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From: Langley AFB, VA

CT, You are the best man! This is a great writeup. Its too bad that some people don't bother to READ it before they ask a question that has already been answered numerous times. Use the freakin SEARCH button guys, come on!

You definately have my vote to become a mod!

Aug 30, 2006 | 06:48 PM

#102

mken

Premium Member

Joined: 02-23-05

Posts: 863

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From: Florida

Quote:

Originally Posted by xl1200r

BTW - the bit for the GM hub bolts looks like a star bit, not some special GM only bit. And if you got your bit back and it looks helical (twisted), it's because they tightened the bolts too much.

My bits looked helical (twisted) straight out of the box, brand new, never been used, both of them.

Sep 6, 2006 | 08:41 PM

#103

USMCFieldMP

Rattlesnake Race Shop

iTrader: (1)

Joined: 06-08-06

Posts: 15,725

Likes: 410

From: Fort Worth, TX

URGENT QUESTION!!! Trying to change pulleys... but every time I try to loosen one of the bolts on the Stage2 3.00 ring... the WHOLE THING TURNS... as in the whole pulley spins like it is in operation! And I don't want to force the hell out of it because I don't want to F&@K up the Blue Bolts. Help Please!

Sep 7, 2006 | 11:24 AM

#104

cmj917

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Joined: 06-02-05

Posts: 196

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From: Grandville, MI

Try having someone pull the 15mm wrench on the tensioner toward the front of the car (rather than pushing it toward the back) to increase the amount of pressure the belt is putting on the pulley. The torque specs are also quite low on the bolts, so if you are unable to break 'em loose, consider taking it back to the dealer that installed your Stage 2 and have 'em loosen them ... tell 'em you're taking it off to clean it or something

Sep 7, 2006 | 12:31 PM

#105

CTCOBALTSSS

Thread Starter

Senior Member

Joined: 03-21-06

Posts: 7,917

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From: CT

Quote:

Originally Posted by marerick007

Thank you very much bro I really appreciate that. Thanks!

Nov 10, 2006 | 04:20 AM

#106

Rage915

Senior Member

Joined: 03-11-06

Posts: 1,405

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From: El Paso

i installed the 2.79 in pulley n am a lil disappointed, only 4WHP and 12 LB of TQ gain only. so my boost is at 16psi, and numbers read 254.4WHP and 227.8 LB of TQ. how can this be true?