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March 23rd, 2006, 01:01 AM
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Pinion angle
What's everyone running for their pinion angle on stage 2 powered GN's with stock "type suspension"... all poly bushings ... expected 60fts around 1.30's with a Ford 9"
George
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Oldtimer '87 GN ( original owner ) Cal Hartline prepared Stage 2 9.76 et @ 148.07 @ 25# with awful 1.80+ 60 fts. (some more work to do)   G S C A 2865     
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March 23rd, 2006, 10:15 AM
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Quote:
Some go as much as -4*.
__________________
John Wilde 86 T Type Blue - Driver 86 T Type Black - Resting 87 GN Back Halved - Sold
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March 23rd, 2006, 10:59 AM
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My experience
A few years back @ Bristol (production block)---anything over - 3 degrees, I got viberation @ the end when letting of gas. No where near the power level Stage guys are running.
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leeo
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March 23rd, 2006, 11:19 AM
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I've got it set at -2 1/2 degrees now. I was wondering what you fellas have actually experienced VS all the theories that are out there. I know that each car is different and trial and error will have to be done, but I'm new to this much power and there is so much experience on this particular board, I thought I'd see what most of you are running.
George
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Oldtimer '87 GN ( original owner ) Cal Hartline prepared Stage 2 9.76 et @ 148.07 @ 25# with awful 1.80+ 60 fts. (some more work to do) G S C A 2865
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March 23rd, 2006, 11:57 AM
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Quote:
George you should be fine. Go out and let het rip!
__________________
John Wilde 86 T Type Blue - Driver 86 T Type Black - Resting 87 GN Back Halved - Sold
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March 26th, 2006, 11:28 PM
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The tranny and pinion shafts need to be completely parallel to avoid any power loss when under full steam. The only reason to go negative is when it compresses the bushings, they go to parallel. So you basically have to guess. Want to get it right the first time? Use aluminum bushings all the way around.
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March 27th, 2006, 12:14 AM
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Quote:
__________________
1986 Buick GN "BLACK" 10 sec. "109" motor -SOLD Stage II w/Stage II Heads,Edelbrock Tunel Ram Intake & Big Stuff 3. Damn Right it has A/C ! Its HOT here in Texas.  My Photo Gallery www.CONLEYRACING.com
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March 29th, 2006, 10:20 AM
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I got all my chassis parts from either Competition Engineering, Chassis Engineering or Chris Alston's Chassisworks. I'll bet Moroso has them also.
Give any of them a call and I'll bet they can point you in the right direction. Roger
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