gota911

I, too, believe that the rev counter shows the cumulative number of ignitions in a particular range. If it were just a "single event" counter, then you could bump into Range 1 for, let's say 100 ignitions, and wipe out (erase or replace) the 2,000 ignitions that were there previous.

Also, if the rev limiter function were instantaneous, there would never be any over revs, EXCEPT for missed shifts. That is simply not the case, as quoted d above in the statement from Scott Slauson, PCA Technical Expert.

Now let's discuss the cars with PDK. Many here believe that PDK cars will never have any over revs in any of the rev ranges. If a manual transmission car, when it bumps into the rev limiter, will show some over revs in ranges 1 ,2 and possibly 3, then what makes anyone think that a car Will PDK will not record similar over revs in Ranges 1, 2 and possibly 3? I believe that there are plenty of PDK cars with over revs in the lower rev ranges.

A PDK transmission car will not allow over revs caused by a missed shift, because the shift program will not allow a down shift if doing so will cause a mechanical over rev. I believe many here have misunderstood or misinterpreted the fact that PDK will not allow a mechanical over rev to also mean that PDK can never have an over rev. I believe if the rev limited has been hit during acceleration on a PDK car, there WILL be over revs in the lower ranges. If I had a PDK car, I would go out and bang off the rev limiter half a dozen times and then take it to the dealer for a DME readout and post it here for all to see, so we could prove that the world really is round.

Any owner of a PDK ever bounced of the rev limiter? If so, would you be willing to have your DME read by a Porsche dealer? If your dealer wants to charge you for the readout, I'll pay for it. If I have to pay to prove that my belief (theory) is wrong, then so be it, but it may also prove that a PDK can have over revs, and if so, then so be it, too.

Mumbles

Interesting question, can you over rev a car with PDK by downshifting in manual. Will it disengage or not ?

When test driving my car I'm sure I down shifted in manual and bounced off the rev limiter. This may of triggered an over rev, who knows ? Damn toggle buttons are a pain and are going to take a bit of getting used to.

I may finally change to the paddle steering wheel, right up, left down.

Alan C.

I bounced my Cayman S with PDK off the rev limiter more than once. I had it read out and can't remember if I had any hits in range 1. I do know that I did not have any in range 2 and above.

gota911

From everything I have read, you can not rver rev a PDK by downshifting, even in manual mode. Apparently the "shifting software" will not allow that to happen.

Mumbles

Cheers, thats good to know.

fast1

Unless the report has changed in the last few years, it's a cumulative report of the number of ignitions in the various ranges. Anything above 3 is likely to cause engine damage. It is very likely that a range 1 was caused by the rev limiter intervention, so it's unlikely that the event lasted more than about .5 second. That would account for a little over 90 ignitions or 180 if it were a full second in that range, very unlikely. 6K+ in range 1is not one event.

X51

Resurrecting thread for report I received today:

Range 1 - 2262 (to 7500 rpm)
Range 2 - 231 (to 7700 rpm)
Range 3 - 24 - (to 7900 rpm)

The service manager at the dealership told me this was fine and nothing to worry about. He said it was one of the cleanest reports he's seen. I was hoping to not see any in Range 2 and above. Without the info about the hours, etc. when these occurred, what comfort or fear should these numbers give me?

Alan C.

I can update on my experience with an 11 GTS with PDK. I did get hits in range 1 and 2 when bouncing off the rev limiter in manual.

As to you DME readout I wouldn't worry about it. Divide the numbers in the ranges by 3 and that's the number of rpms in that range.

gota911

Alan,

Would you please post the numbers? Better yet, start a new thread with the title "Over revs on my GTS with PDK" something similar.

Ever since the PDK came out in 2009, my contention has been that one CAN have acceleration over revs with a PDK, while most here have said that is impossible.

Many were mistaking the apparent inability of PDK to induce a "money shift" over rev when downshifting to mean that it was impossible to have ANY over revs on a PDK car.

No HTwo O

NOT the DME report I'd want to see on my car, nor a potential purchase. And this "report" mean nothing without the time stamp, total engine hours, and the range 4, range 5 and range 6 results. Lastly, it sounds like your service manager is full of BS.

The range 1 & 2 numbers are competely normal. Range 3 numbers are suspect and a gray area. Your range 4-6 numbers are missing and very-very valid/necessary.

If this is a PPI report, I'd pass.

pewter82

Where's MacMaster on this thread ??

Ranges 1-3 are generally regarded as acceptable. There are plenty of cars that only have range 1-2, but I would also look at 'when' the upper ranges happened.
I just don't think cars with even Range 4 are considered hopeless, once again look at when it happened and check the car for any indications of damage. If the rev happened 20K miles ago that gave it a range 3 or 4, and the engine checks out clean otherwise, I wouldn't pass because of a short hit in those ranges.

Mark Harris

Hmmm... I too would like more information as I researched this (non-internet) heavily before purchasing my .2 PDK. Spoke in person with two reputable service managers at dealerships. One in Florida....

Also watched my Indy pull some DME's with his Duramatic on some PDK's. All research lead me to the conclusion anything above a 1 on a PDK is literally impossible.

Service manager in FL stated that a freak incident of getting a rear wheel off the ground (say in a corner on the track) while accelerating is the only conceivable way.

Alan C.

I'll post a new thread titled '2011 GTS PDK DME Rev Ranges Observed' with a screen shot.

X51

Regarding my numbers, Ranges 4, 5 and 6 were zero. I just don't have the time stamps on summary copy the dealer gave me. I'm sure he's got them.

Alan C.

If you do the math and divide the numbers by 3 it is meaningless to me. I purchased an 09 C2S with a very similar reading and the car was CPO. Good to see that there were no hits in 4-5-6.