Originally Posted by tibug
That seems odd but it could be true. It would seem that it would be under the same conditions both times, right? You were WOT the first time and WOT the second time. The first time it revved up to 6.5, the second only to 6. I'm not sure what exactly it would have changed in response to driving conditions and why..
There are so many other factors at play it's ridiculous. I'm under the impression that the driving conditions were not identical which is the only way to compare two pulls.
With that said, it does seem strange that the "optimum" RPM would change.