Originally Posted by bmorgan

I am not sure that heat soak would be my issue. I let her cool for 45 minutes with ice on the SC before I made the first run. I used ice on the SC between runs. And, out of the 4 runs, there was only a .011 difference between my best and worst 1/4. If I were having heat soak issues, I would expect to see a larger gap in my times.

I just checked my pulleys and belt. There is no residue of any sort on or around the pulleys or belt.

Kolevski, said something that was interesting. Would disconnecting the battery have anything to do with this? Here is the deal... Before last night, I have not driven the car for about 6 weeks. During that time, I was working on the illuminated door sill project. While working on that project, I had the battery connected/disconnected many times. I was actually wondering last night if me disconnecting and reconnecting the battery so many times could have affected the ECU.