Mid America Motorplex is basically my ‘home’ track, so I was expecting to do well here. The car had a few issues after the last event, and I ended up having to install a new transmission because my old one was basically munched. However 100k+ miles, and 20k+ miles as a track car will do that I suppose, especially at 175% of stock power. I was also able to have some time to throw in my new bushings all around, which definitely tightened up the suspension. All in all the car was feeling pretty good. I was abl
After our requisite thrashing about to make it down there, we were able to get a little sleep. Saturday dawned bright and warm. I brought alot of drinks this time, but I didn’t have any ice. (Mistake #1) Anyway, the warm up session was pretty uneventful, except that it was obvious that it was going to be hard to get good times. The power on the car was already down, the temps were in the mid-80’s even at 9am! I turned the water on, and didn’t turn it off again all weekend, even at 11.8 psi of boost.
The day went pretty well after that, although we were looking for air conditioning non-stop. My car ran pretty well, and my driving was ok, but the temps were definitely not helping. I saw the highest temp I’ve seen on the water during one run, 105C. Air temps even with the water on were getting close to 50C. Now in general, these are not high temps for a RX7, but for me they were pretty high. The car definitely had less power at those temps, the ECU is set to start retarding timing and dumping fuel so that