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Thread: Need Some Front End Help
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05-12-2010 #41
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Just drive in the "R"ace gear....hope you get this figured out.
Originally Posted by AintQik
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
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05-12-2010 #42
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Also,
Compared to a stock car the upper control arm is .5" back in the wheel well. The spindle is sitting at -6.5*. Don't know what its supposed to be.RJ Cilurso
67 Camaro with a few things bolted to it
12 Camaro with a few things bolted to it
50 Chevy 5 window p/u with a few things unbolted
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05-12-2010 #43
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I think I figured it out. Check my logic.
They sent me a 2" drop spindle which I really didn't want to begin with. I don't think this system is intended to run with this spindle.
So, draw a verticle line at 90* which represents the spindle with a circle at the bottom which represents the axle.
Then tilt the spindle back towards the rear of the car (moving only the top) .5" like its supposed to be with these control arms. Circle should remain close to where it started. Now move that circle up 2" from the bottom as is the case with a drop spindle. It would be drastically farther back in the wheel well. As the circle moves up on the spindle it will move towards the back of the car because the spindle is angled back. On a regular spindle this would be much less of an issue.RJ Cilurso
67 Camaro with a few things bolted to it
12 Camaro with a few things bolted to it
50 Chevy 5 window p/u with a few things unbolted
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05-12-2010 #44
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1/2" at the upper ball joint? That wouldn't give you the problem you're having (at least not that much). Caster is high, but not ridiculous... Originally Posted by AintQik
Did you say the spindles are not stock? Drop spindles? You may have got something with a lot of "mechanical trail" built into the knuckle (spindle pin moved back from balljoint centerline). That would have a direct effect on wheelbase.
If "F" was correct, that tells you you're in the right relationship to the firewall and front fender mounts. "E" says that nobody jiggered the subframe to correct bad lower arm geometry...it's looking like something with the spindles. Even if the tires are much taller than stock they should still be centered in the fender openings...
Ray Kaufman - Wyotech Chassis Fab and High Performance Instructor. Words of Wisdom from an old master... at Asylum Custom Interiors website
05-12-2010 #45
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Ray, thanks for your input. I'm leaning towards the spindles. Only thing that does not check out so far. Global says they are supposed to be .5" back at the ball joint. Everybody knows drop spindles are a pain. I didn't want them to begin with and somehow forgot to check them when I got them. I got $2 that says that's my problem. A fella can hope can't he?
RJ Cilurso
67 Camaro with a few things bolted to it
12 Camaro with a few things bolted to it
50 Chevy 5 window p/u with a few things unbolted
USAF
05-17-2010 #46
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Any updates RJ?
Ron in SoCal
69 Camaro in progress
http://www.lateral-g.net/forums/showthread.php4?t=31246
Used to be known as flash911
05-17-2010 #47
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+1...just wondering if you have figured out the problem, yet... Originally Posted by flash911
1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
05-17-2010 #48
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Check out Track Day's Progress thread
https://www.pro-touring.com/forum/sh...&postcount=263
he's using an ATS spindle and has a ton of alignment shims in his also to achieve -1°...one common item between yours and his is the GW control arms.1970 RS/SS350 139K on the clock:
89 TPI motor w/ 1pc rear seal coupled to a Viper T56 via Mcleod's modular bellhousing w/ hydraulic T/O bearing from the Viper, 12 bolt rear w/ 3.73 gearing, SC&C upper control arms, factory lowers with Delalums, C5 brakes at all four corners, Front Wheels 17x8's with Sumi 255/40/17 and Rear Wheels 17x9's with Sumi 275/40/17.
Brief description of the work done so far can be found here: http://www.nastyz28.com/forum/showthread.php?t=112454
05-17-2010 #49
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Right now I think its the spindle but I won't know till I tear it apart. Its locked down in my trailer right now getting ready to move to NJ. I'll make sure and post when I know for sure.
RJ Cilurso
67 Camaro with a few things bolted to it
12 Camaro with a few things bolted to it
50 Chevy 5 window p/u with a few things unbolted
USAF
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