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DME Report from PPI - 2012 997.2 with PDK

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Old 01-06-2018, 11:10 AM
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jc 944
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Default DME Report from PPI - 2012 997.2 with PDK

Folks -- I could use some help in interpreting the DME report data that I have for a potential purchase. This is for a 2012 with PDK and roughly 20000 miles. My read is that the car was likely run very hard in the last 30 hours and that given the range 2 over speeds occurred 40 hours prior to that event, it was run even harder at that time. While not indicative of problems, this DME readout does indicate a pattern of fairly recent hard use. Am I correct in my interpretation?

Operating hours - 761.83
Ignitions range 1 - 2278 @ 730.01
Ignitions range 2 - 53 @ 688.83

Any feedback would be appreciated.

Cross posting to this forum as well as 911 forum
Old 01-06-2018, 12:12 PM
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Bxstr
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Someone can correct me, but range 1 and 2 shouldn't be much of a concern. Also, looks like average speed would have been 26mph or so taking the 20,000/761.83. The bigger concern to most people is that the range 1's just happened 30 hours ago.
Old 01-06-2018, 12:25 PM
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voiceprint1
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PDK is electronically limited so you can't over rev? at least that is what I thought
Old 01-06-2018, 12:31 PM
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Wayne Smith
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Could be someone put it in manual shift and encroached the rev limiter during a pass. Might not be indicative of extended abuse. But 40 hours seems to be the magic window to worry.

Could be manual mode with a steep downhill.

From another perspective, Range 1 shouldn't be a big deal. I am curious how the Range 2 occurred sans Range 1 at 688 hours. Or does this report simply indicate total in Range with the time of the last event?

Personally, knowing how reliable (and robust) the 9A1 has been, I would not let this stop me from buying the car if it met my specifications.
Old 01-06-2018, 12:52 PM
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Bxstr
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Originally Posted by Wayne Smith
Could be someone put it in manual shift and encroached the rev limiter during a pass. Might not be indicative of extended abuse. But 40 hours seems to be the magic window to worry.

Could be manual mode with a steep downhill.

From another perspective, Range 1 shouldn't be a big deal. I am curious how the Range 2 occurred sans Range 1 at 688 hours. Or does this report simply indicate total in Range with the time of the last event?

Personally, knowing how reliable (and robust) the 9A1 has been, I would not let this stop me from buying the car if it met my specifications.
Range 2 would make sense happening earlier since the last time he would have rev'd it, most likely he just got into range 1 and not range 2. Typically you would see the higher range numbers have an earlier hour counter on them. For example a range 6 might have an operating hour of 50, with range 1 having an operating hour of 600.

And agreed, no reason not to buy the car if everything else checks out. Many manuals will have range 1,2,3. 4 and above is when you have to start looking into the car. But every used car is going to have some small little nagative against it, in my opinion.
Old 01-06-2018, 04:54 PM
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Skwerl
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You don't tend to see as many overrevs with PDKs, but they can happen. In the manual world, that report would be considered very nice.

I sometimes wonder what Ferry Porsche would think about people wringing their hands about whether their sports cars were driven spiritedly around the redline a few times.
Old 01-06-2018, 05:40 PM
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bronz
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This is nothing, you guys are overthinking this.
Old 01-06-2018, 07:27 PM
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Flat_Six_
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My PPI had ranges 1, 2, and 3. My mexhanic said they were not bad, and old, so I didn’t need to worry.

Do you honestly think there’s any 6+ year old 911s that have never been redlined? That’s what we bought them for.
Old 01-06-2018, 08:00 PM
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z3mcoupe
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Originally Posted by jc 944
Folks -- I could use some help in interpreting the DME report data that I have for a potential purchase. This is for a 2012 with PDK and roughly 20000 miles. My read is that the car was likely run very hard in the last 30 hours and that given the range 2 over speeds occurred 40 hours prior to that event, it was run even harder at that time. While not indicative of problems, this DME readout does indicate a pattern of fairly recent hard use. Am I correct in my interpretation?

Operating hours - 761.83
Ignitions range 1 - 2278 @ 730.01
Ignitions range 2 - 53 @ 688.83

Any feedback would be appreciated.

Cross posting to this forum as well as 911 forum
From memory when I read a lot about over-rev's, these ranges were just getting into the red-line range, and really nothing to worry about. I think if you bounced off the limiter in 2nd, you got into range 2, so pretty easy to do.
Old 01-06-2018, 10:40 PM
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Skwerl
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Originally Posted by Flat_Six_
Do you honestly think there’s any 6+ year old 911s that have never been redlined? That’s what we bought them for.

I get a chuckle out of the guys shopping for GT3s and .1 Turbos for that legendary, race-bred and bulletproof Mezger engine who "walk" (it's always "walk") on cars with old over revs. I'd put money on a lot of the big ticket air-cooleds having money shifts that nobody will ever know about, too.
Old 01-06-2018, 11:03 PM
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Tj40
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On the .2 cars range 1 and 2 are below the red line so they are not 'over' revs at all! 911virgins has a great article explaining these reports.
Old 01-07-2018, 02:38 AM
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Originally Posted by bronz
This is nothing, you guys are overthinking this.
+1



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