Hey guys, I have been lurking around the boards for months gathering information and knowledge before my big purchase. The help you guys have given prospective buyers has been absolutely been fantastic. Now, I'm reaching out for help before my 1st Porsche purchase. I had a PPI conducted today on a 2005 911 S coupe, with 28K miles, that I was ready to pick up this weekend. The DME scan was faxed to me and I have some serious concerns and questions. The car is out of warranty and I'm quite concerned about potential engine issues down the line. There are many different schools of thought regarding DME readings from my understanding, I would really like some input/opinions on the following DME scan:

Number of ignitions at speed> maximum speed, range 1= 47,214
Number of ignitions at speed> maximum speed, range 2= 12,596
Number of ignitions at speed> maximum speed, range 3= 4007
Number of ignitions at speed> maximum speed, range 4= 590
Number of ignitions at speed> maximum speed, range 5= 60
Number of ignitions at speed> maximum speed, range 6= 0

I spoke with the Porsche Tech who actually conducted the PPI, he claimed he wasn't bothered by the readings. He agreed the car had been driven "like a Porsche should be driven," but overall seemed really unconcerned about any long term issues with the engine.

Any help you guys can give would be greatly appreciated!

Sincerely,

Jay Jones

 

If the Porsche tech is not concerned then you are probably okay. I have seen several schools of thought on these ranges and I have never seen a clear cut answer so maybe you should call the tech back and ask him why he is not concerned.


I am interested in the answer as well

Jason

 

See this thread https://www.6speedonline.com/forums/...-over-rev.html

 

With so many cars available these days, many for great deals, I'd be weary. Your numbers tell us the car has been rev'ed to at least 8401 to 9500 RPM.



At 7000 RPM, there are 350 ignitions per second.

So, about 1.7 seconds at 7901 to 8400 RPM. This is more than just an accidental shift. With so many cars available these day, I'd walk away. While the engine may be fine, there is evidence that the car has been abused...components ie transmission, brakes, suspension, may have been subjected to excessive strain as well.

Look at it this way...if you were trading this car in for a 09, the dealer would use this as evidence that the car was abused. You should hold them to the same standard as the seller. Just my opinion.

 

On one hand it shows some 'spirited' driving while on the other hand it appears to have managed to live through it just fine if thats what the PPI shows. A Porsche is designed to be driven hard. If it's been a garage queen for 4+ years and you tend to drive hard then latent problems might and most likely will show up. If it's been driven in a spirited fashion there is a excellent chance the car is reliable and solid.

If the price is right and the tech inspection is good I say go for it.

Good luck on your ultimate decision.

 

Thats good info but where did that document come from?

LOL... except for the PORSCHE logo at the top it doesn't look very official.

I love the quote "I reckon she'll pretty much blow slap up!" LOL

Jason

 

From rennlist...The rev ranges have also been confirmed by Loren and others from renntech.org
http://www.renntech.org/forums/index...gnitions+error

 

Walk !! That car has been hammered "the way it should be driven" by someone else instead of you . He had the fun and you become the bagholder .

Talk to forum members like VMM who bought an 8K mi car with ZERO over revs or Joe shark whose car had a few level 1 's .

 

I dont doubt it.... just a funny document.... looks like an internal dealer doc

Jason

 

That's a pretty scary looking DME scan. I'd walk away from this car.

 

is that 47,214 times its reached level one? looks like it was definitely driven Hard everytime it was turned on

 

Jason, I thought so also...good for a good chuckle

Here's the original link:
http://forums.rennlist.com/rennforum...r-bad-car.html

 

No...47214 is the number of ignitions. There are 350 ignitions per second at 7000RPM...134 seconds. Fuel shuts off at 7300 RPM...hence, this is not out of the question for aggressive driving. I wouldn't be worried about range one...someone new to the car could easily hit 7300 RPM because they are suprised how quickly redline is reached. 8401 to 9500 RPM? That just happens because the driver is down shifting carelessly.

 

Word, I would imagine I have more than few seconds in range 1. Hopefully none in the others though!

Jason

 

I once thought that could be the only cause too . Then I started looking at Honda tuning and saw things like this. Even with Porsches who knows what type of software tune went into that car .


http://www.youtube.com/watch?v=Ay1KZ-t4HSc

Even worse .. there's this ..
http://www.youtube.com/watch?v=dXkPwJi5p9o&NR=1