Originally Posted by
dfhotlm33c
Well I was going to post this in a separate topic, but I guess since everyone asked:
I kept turning bias to the front during heat but car kept getting looser in, as in basically spin out loose. (Car was really good through about lap four and then starting getting crazy loose) So, I thought I was backwards. I wasn't. It was correct. I couldn't even stay out for the feature because I couldn't even get in without spinning out.
Funny you mention three wheel brakes. My Dad and I disagreed on that one. I explained everyone uses them, especially when track is heavy. He claimed it was only designed for very short, tight turn tracks. I disagreed.
Anyways, Going over car today and deciding what changes to make, I discovered pinion mount of j-bar had loosened enough to slide all the way down the bracket to the very bottom, as in over 2" below pinion. It must have been progressively dropping lower throughout the heat. Now, my confusion is that I always understood that more rake, and a lowering of the roll center would tighten the car, not loosen it. Is that incorrect? The pinion mount is "climbing" style I guess, so the rear end did not move laterally as far as I could tell. Ideas?