How a Cal-track works

[Lee Jordan (3223) A/S]

Originally Posted by Jeff Lee

Trivia: Competition Engineering made the "slide-a-link" back in 1972 or so. A friend of mine has them on his '72 Demon 340 G/S (?) that hasn't changed since he built it from a new car in 1972. Based on that, I'm under the impression John Calvert borrowed the concept and improved on it by eliminating the soft spot in the middle of the bar.
Which begs the question; which version is better? Personally, I see no use for the urethane shock absorber in the middle of the bar. But I see there are some real fans of the design. It would be an interesting test on the same car. Anybody here try testing the two?

Jeff, you think alot like me. I still have the Comp "Slide A Link" bars. The reason we switched to the Cal-tracs is because I took the rubber sleve out and ran a bolt through the bars and made them solid. My dad almost fell over when I told him but the car hooked way better and the 60' went to the hi 1.30's. That was from consistant 1.45's or so. The springs were Hemi Cuda leaf packs with the length changed on all but the main leaf. Of course this was along time ago and everything works better now. The Cal-tracks allowed us to go to the soft clutches too. In 1980 my presure plate was set at a 3500lb base!!! Wow things have come along way huh?