First, why did you hhave to shift when rpm reached 7000? Why didn't it upshift by itself as an AT would.
Second did you have ant change in elevation at the point it reached 6500?
It sounds like the rpm limiter worked and cut off. Have no idea why that could happen unless the engine suddenly had an increase in power required that wasn't enough to cause downshift..

 

As for slow; compared to what? How about a Fiat 500 not Abarth.

 

you mahout, you quoted a reply that was sent 2010

Anyway, it wouldn't upshift itself if its in the "S" mode and using paddles. It does downshift automatically though if speed are too low.

Not sure if its a limiter since it creeps back up and goes farther (7k).

 

Yup, most people who drive AT's don't rev to the limit. Those that do go auto-x, where the car mostly stays in M2, and rarely, if ever, sees redline in M3.


Hmmm... it may be the torque converter. But i doubt. If it were the TC, it should happen whenever revs go up to ~6500rpm, in all modes, i think. But it only happens in M3 going to M4. But if it were the TC, we could try replacing it maybe?

 

Hmmm.... interesting. Have you mentioned this to the GD folks? Their comments?

 

Thanks for the reply mate! Well it might be "normal" after all.. Hate it though when it happens since i know it can push faster if that does not happen. lol

 

Okay so, Committobefit08 said (a while back) it happened to him in 4th gear also.

So I wonder... could it be a programmed logic?

Let's look at the details (or what I can recall anyway).

In D mode, the car revs up and shifts without the momentary RPM drop.

In S mode, the car revs up and shifts the first two times (1-2 and 2-3) without the drop, but does it in the 3-4 and 4-5 shifts.

Now, in S mode, the car is supposed to be able to HOLD RPM even up to redline, but that's only if you are actively using the paddle shifter ("Manual-S").

Since folks are getting "auto-shifts," it means they aren't actively using the paddles ("Auto-S").

It could simply be that the programming/timing is slightly different for the later two shifts in "Auto-S" mode as opposed to D mode (full auto). And that, in D or the early two shifts (1-2 & 2-3), the programming and timing were setup tighter.

Then again, could be something else entirely.

 

When Gary of Sprintex noticed this behavior, he said that the throttle plate was closing slightly even though the pedal remained floored. The fix, if i understand correctly, was to not add timing at the top end of the rev range. But i don't know if the AT was in D or S or manual mode.

Hopefully, he'll enlighten us and tell us what we can do about it. Like buy the Sprintex Supercharger maybe?

 

Ours still does this consistently. Interesting to see it on other vehicles. They just might be doing something funky there at 80mph. Under normal conditions, you would be struggling to keep up at that speed anyway. I've noodled with timing and fuel up there and nothing changes. The mapping I'm running consistently adds 9 degrees of spark advance over 5200rpm. Kinda strange that it likes more timing under VTEC, but I'll go with it.

I'm listening to everyone's observations. Our blower has it's own thread. I don't spam forums, especially if I know I'm the new guy! Hopefully you find that refreshing . I did not grow up working on Hondas.