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chasracer · 08-19-2016, 08:31 PM

I raced one of these cars about 20+ years ago. It was a 331 small block, TH400 and 5.13 combination.

If you take a side view of your car and draw the imaginary lines through the rear control arms you will find the instant center of the car probably about 6-8 feet in front of you, maybe more. The IC needs to be about where the engine block/trans come together or at worse the front of the engine.

According to the rules, you might be able to do the following. The UMI adjustable upper links really don't do much more than adjust the pinion angle, kind of like the upper link in a ladder bar car. So, if you can find another upper control arm - you only need one, cut it in half, mount the half to the rear and then have your stock arm mounted in front to the frame and bring it down on top of the half. Tack weld it there, do the other side and then pull them out to weld them up. Put these in and you just moved the IC where you need it with "stock" parts. I think you will be very pleased with the 60' after this modification.

08-19-2016, 08:31 PM	#6
chasracer Junior Member Join Date: Oct 2015 Posts: 14 Likes: 3 Liked 0 Times in 0 Posts	Re: suspension and ignition setup need help I raced one of these cars about 20+ years ago. It was a 331 small block, TH400 and 5.13 combination. If you take a side view of your car and draw the imaginary lines through the rear control arms you will find the instant center of the car probably about 6-8 feet in front of you, maybe more. The IC needs to be about where the engine block/trans come together or at worse the front of the engine. According to the rules, you might be able to do the following. The UMI adjustable upper links really don't do much more than adjust the pinion angle, kind of like the upper link in a ladder bar car. So, if you can find another upper control arm - you only need one, cut it in half, mount the half to the rear and then have your stock arm mounted in front to the frame and bring it down on top of the half. Tack weld it there, do the other side and then pull them out to weld them up. Put these in and you just moved the IC where you need it with "stock" parts. I think you will be very pleased with the 60' after this modification.