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#1 |
Registered Member
Join Date: May 2002
Posts: 23
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![]() Ok guys , I have the double adjustable uppers in place and am looking into setting the pinion angle now. To what degree should it be set to? Is it POSIVTIVE or NEGATIVE ?
THX, -PONY1 |
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#2 |
or '331 LX Eric'
Join Date: Jan 1999
Location: Columbus, Ohio
Posts: 2,142
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![]() As I was reading through the most recent 5.0 mag last night (July 2002, I believe) and drinking a few icey cold fermented beverages, I remember glacing at an article about improving your 60' times. Anywho, in this article a couple of the racers interviewed suggested negative 2 to 4 degrees of pinion angle for the street/strip application - if my memory serves correct.
I can check the article tonight and post back if you would like? You may want to pick up the issue, it had some good tech related articles in it concerning pinion angles and how it relates to better 60' times. E
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1991 5.0 LX Coupe - 40,750 miles 331 cu. in. / Tremec 3550 / BFG Drag Radials 12.22 @ 114.31 mph - w/1.89 60' |
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#3 | |
Registered Member
Join Date: May 2002
Posts: 23
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![]() Quote:
-Gregg |
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#4 |
Registered Member
Join Date: Jan 2001
Location: Moline Il
Posts: 901
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![]() Your optimum pinion angle will depend on several factors. One being what control arms you have. Are the solid or rubber bushed? The rubbers will move a little more than the solids, so you would need to go down a little further.
Pinion angle is a relationship between the output shaft of the trans, and the pinion. When you launch your car, the rearend will "wind up". Ideally, when the rearend does "wind up" you want a straight shot between the output shaft and the pinion. This would put both front and rear u-joints completely square with the driveshaft. This is where you have the most efficient power transfer. andy
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88 coupe 91 LX NMRA Pure Street 5120 |
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#5 |
Moderator
Join Date: Dec 1999
Location: Livonia, MI, USA
Posts: 1,194
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![]() -2 to -4 degrees is about right.
You do wanna make sure that the trans agle is similar in the opposite direction (+2 to +4) degrees.
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Darius Rudis, Moderator Corner Carvers Delight 1989 Mustang LX - Open Track Car http://www.dariusrudis.com |
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#6 | |
Registered Member
Join Date: May 2002
Posts: 23
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![]() Quote:
That'll happen is couple more weeks. I'll keep you posted ......... |
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