View single post by oldschool1977
 Posted: 04-10-2018 04:28 pm
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oldschool1977

 

Joined: 04-07-2018
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The test and tune at Fontana didn't go as I had hoped to say the least.

The first run I mad the amateur mistake of not airing down my tires. so pretty much the entire track I smoked the tires. Which got me a stern talking to by track officials.

The second run I thought I had aired the tires down a little to much and at 75mph I had to back out of the go peddle cause the back end was shifting on me.

Third pass a little more air in the tires but at 70 it was scary shifty in the back end.

Went back on the trailer headed home, the last pass had me pretty un-nerved. When I got the car home I put it right on the lift to see if I could see the problem. Now some may recall a few posts up when I had the for-site to box the rear control arms, but not replace the bushings. Well as it turns out the 40+ year old bushings didn't appreciate the heat from welding. The rear end had about 2" of side to side shift, really glad I didn't try any more passes.