Whenever i floor my car completely, after it shifts into second which it does fine, it goes to like 6500, before it shifts into 3rd. Actually, i have never kept the pedal all the way down for the 2-3 shift becuase i dont want to screw anything up and it goes up to 6500 without even shifting. The only Hpp3 programming i have is the powertuning, 3.73 gear adjuster, and 50% shift firmness. I am going to the track in a week, and this is a big concern for me, since i have never seen what rpm my car shifts into 3rd at, and i dont want it to rev to like 7K or something. What can i do?

 

remove the programming except for the gears and see what happens and let us know.

 

i got mine computer tuned 4 months ago, and it shifts @ 6600 R's.

 

On a nearly stock car, I think that's quite insane. Much more and you could bend some pushrods or do worse.

Try taking the tuning off and see if that helps. If it doesn't then I'd take it in and get it checked out somewhere.

 

Are you assuming the dash tach is accurate? Or are you actually logging the RPM that you shift at with Autotap or something similar?

 

IMHO I don't think shifting at 6500 rpm is a problem at all with synthetic oil. After having my PCM tuned by Ed Wright I've been shifting at 6700 rpm with not a single problem. Yes, I've removed the heads and cam and see no sign of wear. Besides, take a look at a Z06. Virtually the same engine except for cam, some head porting, intake manifold, and a few other tricks. They reprogrammed the pcm and changed the tach to redline at 6500 rpm without changing the whole bottom end of the engine. I wouldn't worry about it. I have a lot more HP/Torque than a Z06 and have had no problems....so far. Good luck!

 

Yes, heads/cam guys can rev up that high with proper tuning. On a STOCK car it can be dangerous. Read his post guys......or maybe tell me I'm wrong.

 

i would say your tach is wrong because the stock revlimiter would have hit very hard before that and you would fell it banging the rev limiter. Ask someone who has autotap to plug it in and go for a ride to see what the real rpm is.

 

Correct me if I'm wrong, but I think the Z06 has different valve springs. That's why we shouldn't push the red line too hard. When the valves float the pistons smack the valves, causing bent pushrods, valves and notching the pistons. You won't notice more "wear" per say. If you have a problem it will be bent valve train components.

Besides, once you hit 6200 you're past peak power anyway.

Have somebody check with autotap to see if the tach mught just be wrong. Most likely it is. The accuracy of most Gen4 FBody guages is somewhat debatable.

 

Ok guys, i reprogrammed my PCM and set it to shift at -4mph during 2-3, and i set the rev limiter to 6300, now it is shifting right at like 6K. Thank you hypertech.