POP! Oh no ...
Went to a drag rental tonight. Arrived early, got a good spot and put on the drag radials. Reviewed my notes, 16 psi in the drag radials ..... check. I did 8 or 9 runs in a row, hot lapping and trying something a bit different each run. Well, a short burn out of 4 seconds works beautifully. (Thanks Steve) I ran 12.0x time after time after time. I decided to cool of the car and get that 11 sec. time slip I've been wanting. A car broke and oiled down the end of the track so my car had plenty of cool off. Now for that 11. Did my burnout and the car quit. Restarted it and it's only hitting on 4 cylinders. Miss fire codes on 3 and 6 as well as a few O2 sensor codes. Oh crap. Track worker says it threw a cloud of white smoke. Got the car back to my parking, cleared the codes and restarted the car and it's running OK. No noises, no smells, reved it and lost those same 2 cylinders again. I'm thinking a couple of pistons popped. If I need a new engine anyway, I'll drive a mile or 2 before calling roadside assistance. Packed up, talked to a few mechanics near me, and eased out of the facility. Firing on all 6 at first but as soon as I had to give it some gas, lost 2 cylinders. I drove o, 1/2 mile up a hill and pulled over at an exit. Cleared the codes, restarted the car, all 6 again. Going down the exit hill I got to around 35 mph and re entered the highway. Hey, not missing yet! Maybe I can get a little farther from the drag strip before making the call! I slowly added more speed, then more, more, more and eventually I'm motoring along at 65. Shock of all shocks, I made the 100 miles, including over the mountains, and the cars in it's parking place. The only obvious fault I could find on the way home was the IAT sensor. It was reading at ambient for a while which is impossible. Then it started reading below ambient. Then 20º over which is more or less normal. Pulling into my neighborhood it was reading 102º and by the time I parked it read 66º. Outside it's 80º. It's fried. Tomorrow I'm pulling the plugs and the sensor to look for more clues. My current thinking is I need to gap the plugs down and figure out what happened to the sensor ...... and that I don't need a new engine.
Les