Titanium Valves in SS

[Dwight Southerland]

Originally Posted by fredjohnston

Dwight - with all due respect, there is only one method and that's to look at what it says in the NHRA classification guide, see that it says 7.65 @ 411 and to abide by it. No need for a calculator.

As I said, I have been having this conversation with a variety of people at NHRA Tech for a long time and the method/opinion has changed back and forth depending when and who you talk to. I agree that the current consensus is to use the P/W factor found in the Class Guide to determine the class, and use the power factor to multiply to find the race weight.

It has not always been that way.