Notices
997 GT2/GT3 Forum
Sponsored by:
Sponsored by: Porsche North Houston

Is this DME readout good/bad?

 
Old 03-05-2013, 12:59 AM
  #1  
Damage
Addict
Rennlist Member
Thread Starter
 
Damage's Avatar
 
Join Date: Jun 2005
Location: Malibu
Posts: 417
Default Is this DME readout good/bad?

1) 526 @ 691hrs
2) 147 @ 385hrs
3) 95 @ 385hrs
4) 81 @ 385hrs

It has 81 ignitions in Range 4 with 380+ Operating hours. That equates I believe to .2s in that range.

The engine is getting worked on now after the dealership noticed metal shavings. I was told that they're tearing it all the way down to the crank and there was bearing material and that was the metal they found. They have put "all new rotating assembly, bearings, studs, bolts, gaskets, rings.". Is this work sufficient to account for the rev history?

Last edited by Damage; 03-05-2013 at 02:55 PM.
Damage is offline  
Old 03-05-2013, 02:12 AM
  #2  
tredirtyfive
Addict
Rennlist Member
 
Join Date: Nov 2011
Location: Socal
Posts: 125
Default

is this the white .1 in san diego? the report and engine problem looks similar
tredirtyfive is offline  
Old 03-05-2013, 02:32 AM
  #3  
DC640
Addict
Rennlist Member
 
DC640's Avatar
 
Join Date: Jan 2012
Location: TURN 1
Posts: 1,433
Default

get a crazy discount on it and rebuilt engine to 3.9 Sharky
DC640 is offline  
Old 03-05-2013, 02:46 AM
  #4  
Damage
Addict
Rennlist Member
Thread Starter
 
Damage's Avatar
 
Join Date: Jun 2005
Location: Malibu
Posts: 417
Default

so the numbers are really bad??
Damage is offline  
Old 03-05-2013, 09:33 AM
  #5  
GT3DE
Addict
Rennlist Member
 
GT3DE's Avatar
 
Join Date: Jun 2011
Location: Arlington, VA, USA
Posts: 3,147
Default

yes. range 4 is REALLY bad
GT3DE is offline  
Old 03-05-2013, 09:59 AM
  #6  
rmag
Addict
Rennlist Member
 
rmag's Avatar
 
Join Date: Jul 2005
Location: Virginia
Posts: 1,368
Default

Originally Posted by GT3DE View Post
yes. range 4 is REALLY bad
LOL
rmag is offline  
Old 03-05-2013, 01:00 PM
  #7  
Damage
Addict
Rennlist Member
Thread Starter
 
Damage's Avatar
 
Join Date: Jun 2005
Location: Malibu
Posts: 417
Default

If I calculated correctly based on the tutorial threads in here, that over rev in that range lasted .2s though. How significant is that?
Damage is offline  
Old 03-05-2013, 01:27 PM
  #8  
AudiOn19s
Addict
Rennlist Member
 
AudiOn19s's Avatar
 
Join Date: Jun 2005
Location: Columbus OH
Posts: 4,353
Default

type 4 is 9600-10,000 rpm. Any time actually recorded there can't be good. Don't forget it spent time in ranges 1,2,3 to get to range 4. Someone can correct me if wrong but I think only the peak zone is captured so figure there's still a much longer time it was over-reved to get to that peak of .2 seconds > 9600rpm

How many hours on the motor since the over-rev
AudiOn19s is offline  
Old 03-05-2013, 02:40 PM
  #9  
Damage
Addict
Rennlist Member
Thread Starter
 
Damage's Avatar
 
Join Date: Jun 2005
Location: Malibu
Posts: 417
Default

Originally Posted by AudiOn19s View Post
type 4 is 9600-10,000 rpm. Any time actually recorded there can't be good. Don't forget it spent time in ranges 1,2,3 to get to range 4. Someone can correct me if wrong but I think only the peak zone is captured so figure there's still a much longer time it was over-reved to get to that peak of .2 seconds > 9600rpm

How many hours on the motor since the over-rev
owner says approximately 700 hours now. Let's say there was damage from that rev range. What parts would be most likely damaged from that?
Damage is offline  
Old 03-05-2013, 04:04 PM
  #10  
Bono
User
 
Join Date: Mar 2012
Posts: 85
Default

Truth is that no one in this forum will be able to answer your questions accurately. Looks like one bad downshift (mechanical overrev). Driver probably caught it relatively quickly, but still generated range 4 ignitions. You should just walk away from this one. Not only are you taking a chance, but your resale will take a hit too. Why so interested in it? .. price? Is it a 997.1 or 997.2? How much?
Bono is offline  
Old 03-06-2013, 06:46 AM
  #11  
dasams
User
 
dasams's Avatar
 
Join Date: Feb 2005
Location: Palm Desert: 2006 Cayenne S and 2009 C2S
Posts: 1,432
Default

Originally Posted by Damage View Post
What parts would be most likely damaged from that?
The warranty If a claim is made in the future, Porsche may deny stating engine abuse. Or they may honor. Who knows? Dave
dasams is offline  
 


Thread Tools
Search this Thread
Quick Reply: Is this DME readout good/bad?


Contact Us - About Us - Advertising - Cookie Policy - Privacy Statement - Terms of Service

© 2019 MH Sub I, LLC dba Internet Brands

We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.
 
  • Ask a Question
    Get answers from community experts
Question Title:
Description:
Your question will be posted in: