cekim

Not that I have not shifted at 6K+ (manual), but going so far past the torque curve (4K) seems like (in the grand scheme of things), you would be better off working with the auto trans to move the shift points down a little than trying to wind up the engine too much higher... (that is when you are talking about 7K limits...)

When I did that it was because I was distracted by my huge smile, the wind, numerous cars I was passing and the speedo confirming that it does indeed go a long way over to the right...

Have not driven the liquid version, so perhaps I am off base and the drop in the next gear is too far down to justify?

Cruehead

Based off multiple dyno runs, my car pulls until around 6250...then flattens out until 6500. My rev limiter is set at 6700....and I've tested that a few more times than I'd like to.

cekim

That is about what I would expect - from what I have read and seen beyond ~6100 and you are not gaining much if anything.

It has been a while and I know engines have gotten better, but last time I worked on a V8 trying to harden it for high RPMs, there were a lot of things to be done that I would not expect from a stock motor (much less an aluminum one with a plastic intake).

Just to clarify, I thought what I was reading was that autos were hitting rev limiters by putting their foot on the floor to accelerate at < 100MPH speeds... I would not expect to see that myself and would assume that the auto's shifter needed some "alignment hygene" if that were the case... But then I refuse to let the car make those decisions for me

Unless you have made significant changes to the engine to make/handle power up there, you are not getting peak acceleration from that range - so why risk it?

Also, note various threads/links around here regarding specific risks to manuals and flywheels spinning at that speed. The engine is not the only thing that needs hardening for 7K RPMS...

SilverR1_04

I think I have mine set at 6500, (with SCT)