posted July 21, 2003 10:03 PM
I apologize for taking over this thread, but I wanted to let you know about something else that seems to be working on this car which in theory makes no sense at all.
My uncle is pretty much a chassis and engine guru, but he doesn't care a whole lot for anything other than late models, so I get precious little of his input and wisdom. However, he suggested that I put a tie-down shock on the RF of the car. Now I of course had heard of using tie-downs on the LR and an easy-up on the RF, but never the other way around.
I really didn't see how it could work on a stock-type car even though the late models guys around here are using it with alot of success. They suck that car down on the RF and try to keep it sucked down. They way I saw it though, a late model's rear squats as it enters the corner and they don't have to worry about trying to get weight transferred back to the LR for forward bite coming out. Well, a factory stock in no way squats the rear entering the corner and the goal with stock supsensions is to keep the weight off of the RF and keep it on the LR or at least be able to transfer the weight easily from the RF to the LR as you accelerate out of the corner so that you can get bite with that LR.
It seemed to me that if I put a tie-down on the RF, the weight would go there and not be able to transfer back to the LR coming out. At the time I had normal stock mount Bilsteins on. I figured I'd try it though so I bought 2 new QA1 shocks, both of them being 7-3 easy-ups. Since they are rebuildable and revalveable I figured I could just switch one of them to a 3-7 tie-down and be able to try both at a test session. Well, I put the 7-3 easy-up (the one most other factory stock guys use) on the RF and tried it first. The car stunk. I haven't got to try the 3-7 yet though as I broke a major part in it while rebuilding it and am awaiting a replacement.
Since the easy-up didn't work, I put the Bilstein back on, but then something interesting happened. My RF upper spring cup gave way and collapsed during a heat race. I was unaware of it at the time, but knew that I was diving alot further down on my RF than normal and the car was driving the best it ever had... it was super fast. During the feature it continued to drive extremely awesome and again was super fast.... until my left side engine bolt lost it's nut and backed out, allowing my engine to move enough while cornering that it bound up my throttle linkage and essentially made a stuck throttle in the corners. Obviously I had to pull out of the race. But I learned something... that my car indeed was needing to lay down as far as possible onto the RF in the corners and it wouldn't sacrifice my forward bite. I of course had to repair the spring cup, but have now reversed my front springs in hopes of duplicating the effect. I'll be putting that tie-down on the RF just as soon as it's fixed as well.
Sorry for the length of the post, just wanted to expand on how backwards things work sometimes.