I had a tune by Chuck Cow and wanted to try it out. I put my foot in it from a dead stop and I really burned some rubber. I didn't realize that I was in paddle mode and I waited for the shift for just a second, and hit the paddle and it shifted. I have a window valet which will tells me the highest RPM the engine has turned. It said 7100. It was only a second or two at most. Do I have anything to worry about ? All seems to be OK. Am I worrying for nothing ?

Thanks in advance

 

Im saying NO, the REV LIMITER would have kicked on before a hint of damage would be done. You were most likely a nano second away from hitting the RL. No worries.

 

I thought, that the rev limiter shut you down, before 7,100 RPM, some where in the high 6's ?? Can a "tune" change that ?? -- --

 

I don't want to speak for Chuck Cow, but most tuners I have dealt with bump up the rev limiter.

 

Thats what I thought. I will have to ask Chuck. The car is running and sounds perfect. Like I said it was only a second or two. I just hope I didn't damage anything.

 

I'll bet it sounded nice though!!!

 

Yes a tune can change the rev limiter. COW increased the rev limiter for you, just dont bounce off it all the time and you will be fine.

 

Chuck raised your RPM limiter for more spirited driving. You will be okay, just don't do that to often and your motor will last a long long time. I used the Predator tuner and raised my limiter

 

Thanks for your input. I feel better now.

 

The RPM you're seeing is normal and you won't hit it every time...unless you hit the limiter as the shift points are set well below that....rest assured, the motor will live a long life provided you don't hit the limiter 3 times a day for a year....

I get calls all the time from guys with A6's about this....Most tell me it did so BEFORE the tune...and after.

I will have to look into it.

From what I've been told, A BONE STOCK A6 with NO TUNE will hit the rev limiter in PADDLE MODE.

I'm not sure why it is....Likely a GM oversight.

Personally, I don't like the paddles. I really never got much into them.....but, the way I calibrate the trans....EVERYTHING GM originally did has been scaled up the same....Meaning...Each mode of trans operation has been manipulated by the same amount (ie. shift rpm, mph, and engine rev limiters.) So, in theory it should be no different than when GM did it....That's one of the reasons why my A6 tune is soooo comfortable to drive. It's stock on STEROIDS.

As for the rev limiter, it's been increased by 200 rpm's over what the greaterst shift point increase was. Sometimes auto's will slightly over rev due to the nature of the trans. In this way, it is not possible to have a screw up with my tune.

The A6 has "saftey" calibrations for the paddle mode....I'll review and test them at my next opportunity.

What I need is for someone to "make it happen" and report to me what the exact scenario is so I can have a look at it.....meaning....

I need to know....your RPM's, MPH, and what gear you're paddling INTO when it hits.....so I can find it.


The way it works, you need to pass a specific MPH AND RPM to make it shift at Wide Open Throttle. You could (with wheelspin, trans slippage, or converter flash) exceed one of the parameters...but not the other.....even if by .0000001 MPH or .00000001 RPM you will appear (and think) you are at the correct time to shift....but You'll hit the rev limiter instead.

Let me know and I'll look into it.

Chuck CoW

 

Thanx chuck, you seem to have the answers for us.

 

If something was wrong the engine might have thrown a rod!

 

When my A6 was bone stock, it never hit the rev limiter running through the gears at WOT on the road racing track. At first, I didnt like the paddles, but after modding them, I really like them. Now, left paddle is downshift, and right paddle is upshift and I dont use those silly + thumb buttons.

 

Thats a cool setup I however like the factory setup because I can up shift and down shift with my left hand, right hand or both.

 

I can still do that if I want to by using the thumb buttons....I didnt disable them. It's just now "corrected" to similar to every other performance and racing car's paddle system.

 

Chuck
This happened to me before you did my first tune. Forgot I had it in the paddle shift mode, from a very slow roll ( was that 1st gear because I had not shifted from a dead stop? ), got on it and hit the revlimiter quick. Just thought that was the way it worked in the paddle shift mode. Since your tunes and 3.15's I won't even touch the paddles again.