Specifically the RPMs. This is from Road Atlanta last weekend.

[ame]http://www.youtube.com/watch?v=JyLeJQfSFLE[/ame]

This is the first time I've really looked at the RPMs I'm turning. I had been using the stock tach and it had been going up to close to 7000 before it died, but the data is only showing me going to just above 6000. I have a 4.36 in the diff and the computations seem to show that the RPM data in the video is correct.

I'm thinking I'm shifting too early and need to run the RPMs up a little more around 6200-6300 before I shift so that it drops to 5500 or so after the shift. I'm also thinking it may be possible to do the esses without shifting to 5th. I need to back calc from the top speed to see what the RPMs would be in 4th. What RPMs are you guys shifting at and what is a realistic top RPM that you can hold (not just hit for a brief second)? This is a built motor so should be able to handle whatever is at the top end of the range.

Thanks.

David