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Old 02-19-2008, 03:30 PM
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R@P forward placement

I have an old vette that is to be a street/strip car(mostly street)
The front portion of my frame came from a race car and was modified for R@P
The only thing I don't like on it is that the tie rods are on quite an angle going towards the spindles
On the track with limited suspension movement it may not bump steer, but although I won't have a lot of travel in the suspension, it will be more than what the car would of seen
Drag cars have the rack out in front to clear the oil pan...Does anyone know how much of an angle is acceptable for street use?
I can alter the front control arms for more room to move it back if I have to. I don't imagine I will have anymore than 2 inches up/down at the ball joint

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Old 02-20-2008, 08:54 PM
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Rack mount

the susp geru's say to make the tie rods parellel to the lower controll arms and the rack pivot points should line up to a line drawn between the upper and lower inner a arm pivots to minimumize bump0steer
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Old 02-21-2008, 08:33 PM
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Thanks very much for your reply. I am getting the bump steer studs from Allstar and the center pints of the rack pivot points is in line with the pivot points of the inner lower control arms points(bolts centerline)
It is just that with the conventional crossmember and the stock lower control arm, the rack has to sit further ahead than I would like(towards rad) This has the tie rods swinging in somewhat of a forward arc
I am going to cut the front of the lower control arm, replacing the factory bushing, with a Heim end. I can bring the rack back towards the crossmember about 1.5 inches, but it will still be forward
At 2 inches travel at the ball joint, that would create a toe in of about .100 per side(up or down) Two inches is a lot since it would be a greater distance by the time you get to the tire, so it may only be actually about .075 per side at the tire of toe in
As I type this, I realize how pictures would help me out on the explanation part
If this is not making sense, I will try to get a pic posted to help
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