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Over-Revs on PDK GT3

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Old 12-11-2019 | 12:11 PM
  #16  
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Too many others out there w no over revs in the color you like. Take your time and get what you want
Old 12-11-2019 | 08:17 PM
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Originally Posted by Davesrave
Where is the OP? Is there any more light to shed on this?
I'm here. I've been watching the thread and planning to reply. Just have been busy with another car in my garage. Damn front sub-frame!!!

I appreciate all the comments and wanted to say thanks. Having been in and out of P cars for 20+ years, I definitely understand about over-revs, PPI's, track-time consumables, etc. The car I mentioned at the top of the thread is being offered very inexpensively. He is basically pricing it at the dealer's offer as a trade in. It does need bearings,CL's, hubs (I think) and one or two other things, but the price is hard to ignore even if I have to put a fair sum into it (and most of the work I can do myself).

My concern was the very uh... "lofty" ...amount of stage 1 over-revs. I think this indicates there has been a lot more track time on this car that he is willing to admit. Based on that, I would say that getting a DME report on a PDK is not a bad idea at all simply because it could indicate the amount of track time.

At this point, I'm probably going to skip this car. Perhaps the '18MY will come down a bit by the time we get back to driving weather in the spring. Still, I'm surprised that a non-tuned PDK car gets stage 1 over-revs. You'd think Porsche would help retain resale value on a car by cutting throttle before stage 1. I realize that stage isn't a big deal though. I've had stage 4 cars that I ran hard on the street for 30,000+ miles without a hint of problem. Also had a track car with plenty of stage 3 revs and again, never had a problem.

Thanks to everyone who posted. I will have more questions as I move toward my next track car purchase.
Old 12-11-2019 | 11:17 PM
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I would think you will only have range 1 over revs on track if you are shifting yourself. I wouldn't expect it to do that in auto mode. There are plenty GT3's in the market. I'm sure you could find another one.
Old 12-11-2019 | 11:31 PM
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Originally Posted by mwar99
There are plenty GT3's in the market. I'm sure you could find another one.
Surprisingly, there really are not that many '16 MY GT3's on the market right now. Cars.com shows nine of them.
Old 12-12-2019 | 12:48 AM
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Originally Posted by Vetch
You'd think Porsche would help retain resale value on a car by cutting throttle before stage 1. I realize that stage isn't a big deal though.
The issue is that the redline and the hard rev limit are exactly the same. Many cars set the rev limit several hundred rpm above redline, so you can have a gentle rev limiter.

With the GT3, 9,000 rpm is perfectly fine, but 9,001 rpm is a Stage 1 over-rev. So naturally, it’s easy to accumulate thousands of these (every ignition is counted and there are 6 of these for each revolution and revolutions happen very quickly at 9,000 rpm.

You just have to get comfortable with the fact that a car with no Stage 2 or higher over-revs has not been over-revved at all...
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Old 12-15-2019 | 01:04 PM
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When I traded my 991.1 GT3 they took forever in the shop... I’d love to know what they saw. Tracked at 3 DE events only, but was probably above 7,000rpm on every shirt I ever made in that car.
Old 12-15-2019 | 01:10 PM
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Originally Posted by az audi
When I traded my 991.1 GT3 they took forever in the shop... I’d love to know what they saw. Tracked at 3 DE events only, but was probably above 7,000rpm on every shirt I ever made in that car.
7,000 is nothing - you have to trigger the rev limiter at 9,000 to have a chance to record an over-rev.

It really is a non-issue with a PDK car and the delay likely had nothing to do with that...
Old 12-15-2019 | 01:34 PM
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Originally Posted by Perimeter
There are a heck of a lot of 2016 GT3s for sale, you should be able to pick your choice
Find this hard to believe considering how few were made and landed in the US. A bunch of 2016 RS but not many 2016 GT3. Porsche has 1 car nationwide listed, Carfax has about 6.
Old 12-28-2019 | 07:06 PM
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Originally Posted by GrantG
The issue is that the redline and the hard rev limit are exactly the same. Many cars set the rev limit several hundred rpm above redline, so you can have a gentle rev limiter.

With the GT3, 9,000 rpm is perfectly fine, but 9,001 rpm is a Stage 1 over-rev. So naturally, it’s easy to accumulate thousands of these (every ignition is counted and there are 6 of these for each revolution and revolutions happen very quickly at 9,000 rpm.

You just have to get comfortable with the fact that a car with no Stage 2 or higher over-revs has not been over-revved at all...
A gt3 991.1 with overspeed range 1: # of ignitions 2355 and none in range 2 and 3 should be good? How many ignitions should be a problem?
Old 12-28-2019 | 07:13 PM
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Originally Posted by elbala
A gt3 991.1 with overspeed range 1: # of ignitions 2355 and none in range 2 and 3 should be good? How many ignitions should be a problem?
I don’t have experience with how many Range 1’s could be recorded under normal conditions. But there is no number of Range 1’s that is technically a problem.

I guess it shows that it’s been used hard if you get 10,000 (but not necessary abused).

Some people probably never exceed 8,000 rpm. How many ignitions at 8,000 rpm would concern you?
Old 12-28-2019 | 07:28 PM
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Seems like all this over rev question is meaningless unless something was done to the car to potentially void the 10yr/120K motor warranty (like a tune??). If the motor is going to have problems from hitting the rev limiter too many times I would think those problems would show up well before the warranty is up. It's hard to take a .1 in manual mode all the way to 9K without hitting the limiter occasionally. I personally can't time the shift that close because after 8K all hell is breaking loose and watching the tach could be disastrous.
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Old 12-28-2019 | 07:30 PM
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man sorry for my ignorance, new to this platform, to DME's etc. redlining the car daily for me is not a concern. My question is if engine hits 9001 rpm how many ignitions that will yield to the counter? Is the 2355 ignitions reflected in the DME report means the car overspeed to range 1 2355 times?
Old 12-28-2019 | 08:01 PM
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Originally Posted by elbala
man sorry for my ignorance, new to this platform, to DME's etc. redlining the car daily for me is not a concern. My question is if engine hits 9001 rpm how many ignitions that will yield to the counter? Is the 2355 ignitions reflected in the DME report means the car overspeed to range 1 2355 times?
No. Every time you exceed redline, you will accrue many ignitions
Old 12-28-2019 | 08:13 PM
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Originally Posted by GrantG
No. Every time you exceed redline, you will accrue many ignitions
thanks for the feedback
Old 12-28-2019 | 08:21 PM
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2355 counts = 2355÷3=785 revolutions.



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