Well, it all came to an end today. One of our guys rolled the Sprint. First time racing, not on the forum (not currently, I don't think). It was extremely minor; the car tipped more than rolled, and everybody was fine, but when it comes to the "why is my car on its roof" rule, there are no exceptions. One spectator told me it was the slowest rollover he's ever seen.
The car snap oversteers on lift-off. It's very sudden and hard to control. It caught me once earlier in the day; I got into a tank slapper coming out of 9 going into 10 and couldn't recover, ended up sideways on the oval where it crosses the road course. I was lucky and was able to drive the car back to the penalty box.
The guy who rolled it did the same thing in the same place, but caught a rear tire in the dirt/mud off the pavement, and from what I'm told the car basically just tipped onto its roof. All but one of our drivers did the same thing in the same place on the track; he was just the least lucky of all of us. The only damage to the car is a cracked up windshield and a few dents. The cage is fine and worked perfectly.
This came just after we finally got the motor running the best it had all day. It still wasn't right, but we weren't hitting fuel cut in the ECU like we were earlier. The unrestrictive exhaust was allowing the turbo to overboost the car, which maxed out the crappy trap-door MAF in the intake and caused the ECU to cut the fuel whenever we got on it too hard. We "fixed" it by taking a vicegrips to the exhaust tip and crushing it until the orifice was small enough to restrict flow like a stock exhaust would, at which point the car only boosted to 8-10 lbs like it should and didn't cut out anymore.
Oh well, we got a nice room at the Holiday Inn with a nice warm shower I'll be bumming around the paddock tomorrow, so if anyone needs an extra wrench hand, let me know...
Former chief proprietor and lead bad idea generator of Binford "More Power" Racing, 2010-2013: humbly self-proclaimed the best Chevy Beretta in Lemons history.