Riz

How can you tell if it is M96 or M97? What production date has updated IMS in 05?

pissedpuppy

can anyone explain this to me? I've neer known what guys are talking about stage 1/stage 2 over revs

JM993

Read post #9

Dave R.

No guarantee that the M97 IMS bearings won't fail either.

And, in favor of the 2005 M96, the IMS bearing can be changed out without splitting the engine case, unlike on the M97.

royalpar1

i will be trading my car next year, check it out, flawless condition, and loaded including full F77 package. anyone interested, either pm me or email

cpbmd

Can you explain what a DME print out is and will all dealerships be able to get you one? What criteria do you use to determine an over rev?
Thanks

gota911

A 997.1 DME records the number of ignitions which occur above 7200 RPS (red line) in the following rev ranges:

Range 1: 7300-7500 RPM
Range 2: 7500-7700 RPM
Range 3: 7700-7900 RPM
Range 4: 7900-8400 RPM
Range 5: 8400-9500 RPM
Range 6: 9500-11000 RPM

At 7200 RPM you have 120 revs per second X 3 ignitions per revolution or 360 ignitions per second.

Here is an example of a DME readout. The car spent the following time in each rev range, assuming the midpoint of each range as the actual RPM.

Range 1 - 3,603 ignitions / 370 per second = 9.74 seconds
Range 2 - 407 ignitions / 380 per second = 1.07 seconds
Range 3 - 36 ignitions / 390 per second = 0.09 seconds
Range 4 - 0
Range 5 - 0
Range 6 - 0

Ignitions in Ranges 1 - 3 should not cause you any problems with engine damage or with the warranty. Range 4 gets into the gray area, but revs in Ranges 5 and 6 are red flags for the potential to have warranty voided by Porsche. That is why you want to get a print out of the number of revs in each range.

Caughtacab911

My two cents to add to the above: decide which options are must-haves and get the most recent model year you can afford that has them. A CPO car is also a huge advantage. Only thing to keep in mind is that the warranty on a 2005 with CPO will run out in 2011, depending on the build or in-service month (not sure which). I have an 05 C2S with 53K miles, covered until April 2011. It had the rear main seal replaced at no charge under CPO warranty at 33K. Apart from one of the horns that went out last year there have been no other issues whatsoever.

Gene

atr911

All 2005 original warranties have expired therefore as long as you're buying from an authorized dealer, you'll get 2 years from the date you buy it.

If you buy a CPO from a private party you get whatever is left on their warranty.

Caughtacab911

I did not know it was 2 years regardless of in-service date. That's helpful to know.

Gene

atr911

Only if you are buying from a Porsche dealer and the factory warranty is already expired.

pewter82

So used 05 without CPO from Porsche dealers get a free 2 yr warranty???

atr911

No. If you buy a cpo car that has existing warranty that the dealer has cpo'd then you'll have the remainder of the factory warranty then the cpo kicks in for two more years.

If you buy a cpo car that is out of original warranty, you get two years warranty starting the day you receive the car.

Only Porsche dealers can sell cpo. If you buy from a private dealer the cpo is void (if it had one) if you buy private, you get whatever warranty the PO had remaining (including cpo)

If there is no cpo, you get no warranty.

Hella-Buggin'

Make sure to get it with a CPO warranty. I bought an 06 S last year and have had a few little things that were nice t have covered under the warranty. Water pump, Hydraulic clutch cylinder component. It will typically cost you about 2k from a dealer.

cpbmd

Thank you
Very helpful information