Would you buy this car?
01-30-2019, 10:37 AM
#31
Intermediate
Thread Starter
This cars over rev report is fine imo
I also had my pressure plate, go at 30k miles, on my 997.1 4s
That price seems quite high, especially with all the stuff needing attention.
The stuff on the PPI makes it seem like the car has not been maintained (perhaps I am wrong)
I also had my pressure plate, go at 30k miles, on my 997.1 4s
That price seems quite high, especially with all the stuff needing attention.
The stuff on the PPI makes it seem like the car has not been maintained (perhaps I am wrong)
I guess are you buying the car to drive or are you buying it to put in the garage and treat as an investment? If you are buying it as an investment and you never intend on really driving it the yes you should pass. Otherwise the DME report is pretty meaningless and way overblown IMO. A range 5 like 50hrs ago then yes the DME has meaning, otherwise it is just #s.
Like I said, I did an experiment to see just what the over rev report actually meant in real world driving. I hit the rev limiter like once, maybe twice and added 900 ignitions to range 1 and 50 to range 2, literally bumped the limiter twice.
Like I said, I did an experiment to see just what the over rev report actually meant in real world driving. I hit the rev limiter like once, maybe twice and added 900 ignitions to range 1 and 50 to range 2, literally bumped the limiter twice.
The overrev ranges for .2 cars are different than for .1 cars. The first 2 ranges in .2 cars aren't even at redline. .1 cars start with range 1 at redline. .2 cars with PDK will log range 1s and 2s and Porsche is controlling the Rev limits so no opportunity for operator error, but again, those are different #s than on a .1 car.
That DME report shows a money shift at 922 hours as you can see that the range 4, 5 and 6 occurrence were all logged at the same hour mark, but that was 700 operating hours ago, so no longer something to worry about, especially since the car hasn't been babies since then.
Unless there is evidence of the clutch slipping, no need to replace it until there is and do the RMS at the same time as others have mentioned. Also pull the IMS bearing seal during that same service.
Good luck.
That DME report shows a money shift at 922 hours as you can see that the range 4, 5 and 6 occurrence were all logged at the same hour mark, but that was 700 operating hours ago, so no longer something to worry about, especially since the car hasn't been babies since then.
Unless there is evidence of the clutch slipping, no need to replace it until there is and do the RMS at the same time as others have mentioned. Also pull the IMS bearing seal during that same service.
Good luck.
RE: Clutch. When I had my M97 engine rebuilt at 47,000 (unrelated story), I had the clutch redone just because I could do it for the price of the parts alone. The original clutch showed about 50% wear when it was removed. I suspect it would have lasted to 100,000 and beyond.
I would have to pull out my receipt but at my very highly regarded indy shop I had my clutch replace and my flywheel for around 3K dollars. The did the RMS because the flywheel was off. Cost was around $30 bucks extra. My flywheel added around $1200 . I hope that 1200 was for a new flywheel as well. And why change the clutch at 40K miles? Is it slipping? Clutch is normal wear and tear item so dealer makes money on that. It is not a warranty fix. Save your money on that one.
Not sure why you think that, but I disagree.
The hour stamp on the range 4s, 5s and 6s is the same at 922 hours and there and the count is the same or lower the higher the rev range. Thjs car went through range 4, through range 5 and touched in range 6 for a fraction of a second at 922 hours. They're glitches when the overrev count in the higher ranges is larger than that in the lower ranges with the same hour stamp (impossible to occur) or when you get an hour stamp that's higher than than one recorded in a lower range.
That being said, they were 700 hours ago so no apparent damage occurred from that event.
The hour stamp on the range 4s, 5s and 6s is the same at 922 hours and there and the count is the same or lower the higher the rev range. Thjs car went through range 4, through range 5 and touched in range 6 for a fraction of a second at 922 hours. They're glitches when the overrev count in the higher ranges is larger than that in the lower ranges with the same hour stamp (impossible to occur) or when you get an hour stamp that's higher than than one recorded in a lower range.
That being said, they were 700 hours ago so no apparent damage occurred from that event.
For one, the numbers are just too small at those RPM to be realistic. Second, for it to have legitimately brushed range 6, it would then have to come back down through the entirety of ranges 5 and 4, which would cause greater than 2 ignitions at those extremely high RPM. People have shown enough times that these DME reports are not infallible, particularly when you have extremely low numbers at the upper ends. (There was even a guy on PistonHeads a few years back who IIRC was able to generate spurious range 5s and 6s when the car was up on a lift and definitely not being money shifted.)
01-30-2019, 11:26 AM
#32
Glitches indeed...There is no possible physics and math scenario that would cause those revs to occur, they all account for what? Two revolutions? Instantaneously?
That report is nothing for a 6-speed car with 45k miles, and the blips in ranges 4-6 are almost guaranteed to be glitches.
