Raising The Redline On The Z

Originally Posted by zer099

I'm not asking this to piss in anyone cereal, but to have the information and understanding: Has anyone actually confirmed valve float above 8000RPMs or are we just still speculating? Speculation is fine, and safe, but I just spent the better half of an hour searching these forums and could not find a confirmed case of valve float (and to be fair, I could have missed it), but the best I found was everyone discussing it may be an issue, but no one every reving that high long enough to confirm it is an issue.

Again, not trying to start anything, I am just curious if we are still in theories stage about things or if we have some documented evidence.