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Pretty much the case is the only similarity to the PDK-S and the PDK Carrera.
After reading the thread and following I'm still mystified why an "overspeed" event would even matter on the 991 GT3? Even though it has no kickdown, it's fail safe for user error. That's why the factory guys have thousands of hours with it in full auto on the track. God's gift to automatics!
Anyone with access to the official PIWIS TSI can verify it.
Best
John
Late reply to the above ... I have not found it on the US system ... yet. Could be there but I did a search and it did not show up. Nevertheless it looks to be a valid PAG document.
BTW - I'll try to get a screen dump of my car (gen 1 PDK) DME report. I have overspeeds recorded in range 1 and I think 1 or 2 in range 2, so it can be done, but not very often. I have about 5,500 track miles on my PDK. No worries or issues thus far. I will do a fluid check/fill this off season. Need PIWIS II since you need to run it in "fill mode". PDK fluid check can be done without PIWIS II.
Late reply to the above ... I have not found it on the US system ... yet. Could be there but I did a search and it did not show up. Nevertheless it looks to be a valid PAG document.
BTW - I'll try to get a screen dump of my car (gen 1 PDK) DME report. I have overspeeds recorded in range 1 and I think 1 or 2 in range 2, so it can be done, but not very often. I have about 5,500 track miles on my PDK. No worries or issues thus far. I will do a fluid check/fill this off season. Need PIWIS II since you need to run it in "fill mode". PDK fluid check can be done without PIWIS II.
Finally remembered to do a DME report ... here is my data, this is a Gen 1 PDK. Note Range 1 Over revs pretty common, Range 2 seldom, but they can happen (last one was at TH 5mi in Sept w GGR); all other ranges nothing - this is typical for a PDK that has seen track work (from my experience only). Of the total mileage, about 4,000 is track miles around NorCal (BRP, TH, LS, SP) and a couple AX, so about 25% is track related. The track engine hrs are about 20% of total time.
I would expect to see a similar logging for PDK-S over time as well.
They revised and added the following for 2017 and PDK cars:
“Porsche dealers are advised by the manufacturer to disregard over rev data on all PDK transmission cars when assessing a car for warranty provision. Consequently a PDK vehicle with activity recorded as high as Range 6, assuming all other mechanical checks are passed, will be applicable for warranty*** -Accurate as of 2017.”
Thought that was an interesting tidbit even though it doesn’t make much sense in the example of overrev 6. How would a pdk even get to overrev 6 or in our cases overrev 3 with the new 3 tier system?
Side piece of info, I noticed on my gt3 that in auto + sport activated mode actually upshifts at 8700-8900 rpm not 9000 rpm (depends on the gear)...probably to be safe and prevent tier 1 overrevs from constantly occurring
So for manual owners we should stay away from 9k or risk ending up with a ton of overrevs?
Should be fine wringing it out before upshifts because of the rev limiter, but definitely be careful with downshifts. Money shift in this car would cost some serious money.
Correct with upshifts. In fact , the flat shift feature actually helps one get closer to redline before worrying. Instead of guessing when to get off throttle, depress clutch, release clutch and get back in throttle----just need to make sure to depress clutch before 9,000.
Correct with upshifts. In fact , the flat shift feature actually helps one get closer to redline before worrying. Instead of guessing when to get off throttle, depress clutch, release clutch and get back in throttle----just need to make sure to depress clutch before 9,000.
Even if you don't, you won't over rev the engine. There is electronic fuel cut. Bouncing off the limited is not an issue. The only way to over rev is a money shift, ie you are at redline and downshift instead of upshift into next gear.
I was going through this thread & interested to know more about the overspeed. In case of a new gt3 found these values
Does it means that this gt3 has been driven in range 9000-9300 for 2658 minutes. Which can have negative effect on engine. But it can be ignored as per latest warranty guidelines.
I was going through this thread & interested to know more about the overspeed. In case of a new gt3 found these values
Does it means that this gt3 has been driven in range 9000-9300 for 2658 minutes. Which can have negative effect on engine. But it can be ignored as per latest warranty guidelines.
Thankyou.
Since redline on these cars are 9000 RPM. You need to do 60 seconds / 9000 RPM = 0.00667. Which means 1 rev lasts 0.00667 seconds.
0.00667 * 2658 = 17 seconds at redline. It was probably redlined a few times since it has been 17 seconds. Range 1 is completely safe, you only need to worry when it reaches Range 4 or above.
Since redline on these cars are 9000 RPM. You need to do 60 seconds / 9000 RPM = 0.00667. Which means 1 rev lasts 0.00667 seconds.
0.00667 * 2658 = 17 seconds at redline. It was probably redlined a few times since it has been 17 seconds. Range 1 is completely safe, you only need to worry when it reaches Range 4 or above.
Thankyou for explaining.
I think it should be multiplied by 60 again to convert in seconds, as 2658 is in minute? My bad, as the picture is blur.
Thankyou
10-02-2014, 06:24 PM
