With 8 gears and paddle shifters it’s hard sometimes to downshift to the right gear when speeding up. I’m used to regularly giving it 3 taps down if I want to pass someone. I may have tapped one too many as my car revved super high and slowed down. Sounded much different than the normal redline. Wtf? I thought we had rev limiters and I though the ecu wouldn’t allow you to downshift too far! Anyone else experience this? Is there any possible damage? It seems fine...

 

We all have rev limiters.
How the revs are limited on different cars is another story.

But I'm 100% confident you DID NOT over rev your engine

 

Yea that’s what I’m thinking. I’ve done that before in a $4000 Honda but it just makes you cringe a little more in a car like this!

 

I highly doubt you had over reved the engine.

If the car suddenly lost power (simular to letting the gas go) and black smoke came out of the exhaust then yes.

 

If you try to shift to too low of a gear, the car would "beep" at you. Perhaps this can be altered with a tune. You should be OK.

 

The rev limiter only cuts fuel when you are accelerating, hence if you money shift in a manual transmission, there is no safe guard against any kind of mechanical over-rev. Having said that, it is near impossible to do a mechanical over-rev in an automatic unless there was a glitch in the transmission software which I doubt has ever happened yet..

 

You can only over-rev a manual transmission. I have accidently downshifted at 8300 rpm from 3rd back into 2nd and overrevved my 2ZZ-GE engine, but it still survived as I pushed the clutch back in quickly as soon as I started letting it out. Automatics/DCTs while downshifting always calculate the target rpm and will refuse to downshift if it is outside the speed range of the gear. Now, if you shift up at 7300 - 7400 rpm rev limiter then it is a different thing. Computer simply cuts fuel to stop the engine from revving any further and it is well within the operating range of the engine. I have hit the rev limiter many times and it is there to protect the engine.

 

Right that’s exactly what I’d expect it to do, but this particular time it allowed me to downshift into too low of a gear. Never had that happen before. It was weird