12-12-2012, 11:30 AM
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CC Member
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Join Date: Jul 2004
Location: Hopkinton,
MA
Cobra Make, Engine: early Contemporary Cobra (1005), 67 Shelby GT350 with Inline carb on a Boss 302
Posts: 121
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Not Ranked
Radius Rods
Radius rods do not work on a hard-mounted Jag IRS unless they are in line with the inner pivot of the lower control arm. This is what Unique does when they angle the radius rods inward under the gas tank. ERA rubber mounts in a cage like Jaguar did. My early Contemporary had radius arms going forward to the 2nd bulkhead, about 3 ft long. Peter Bayer told me they don't work. Contemporary did away with them after the prototypes and had nothing until someone complained about wheel hop, then they offered the watts linkage. As the radius rod moves thru full travel, it pulls the lower control arm forward and back about .060". You can get away with them with rubber mounts but you are still stressing the lower control arm. The watts linkage lets the arm move freely up and down.
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