doctorpcar

Range 1: 13,354
Range 2: 1,632
Range 3: 168
Range 4: 0
Range 5: 0
Range 6: 0

Operating Hours: 386
Miles: 10,880

jhbrennan

Keep looking - not that this looks too bad but I'd still want one that had zeros in all the ranges.

fast1

Is this a car that you are considering buying? The driver appears to bounce off the rev limiter quite a lot for a car with relatively few miles. Fortunately there are no range 4 and higher incidences which are likely to do engine damage, but nevertheless the car was certainly driven hard judging by the DME report.

Edgy01

I think the DME scan is worthless. Mine has some in the mid ranges (2 and 3) and I have never "bounced off the limiter." I just don't buy what they are supposedly telling us.

fast1

Then someone else has. Did you buy the car from a Dealer's lot? Lots of guys beat the hell out of the car they test drive. The only other option would be the guys who service your car.

pbarch1

I'm with Edgy, we have all driven are cars hard at some time. I know I have but I havn't "bounced it off the rev limiter either. In what hour did the Range 2 and 3 over-revs occur. I'd be more interested if it happened durring the break in period.

Edgy01

I picked up mine at Zuffenhausen. I service my car.

fast1

Dan - How many miles were on your car when purchased? I almost bought a new Caymna S last year with a couple hundred miles, and it already had over 500 range 1 ignitions.

jhbrennan

So it looks like someone from Zuffenhausen got a little frisky before you took delivery.

Sunshine

Baring a money shift or other forced mechanical over rev, I don't understand how the rev limiter would allow range 2 and above in the first place. What good is a rev limiter that allows excessive revs?

Jim Michaels

My recent DME scan for comparison purposes: The result of about 6 or 7 rev-limiter hits on track was 2124 ignitions in range 1 and no ignitions in any other range. I was relieved.

The DME will record about 370 ignitions per second at 7400 rpm (middle of range 1).

Edgy01

not at all.

GHills

The DME should record about 62 ignitions per second at 7400 rpm

7400/60/2

Jim Michaels

GHills: I agree that 7400 rpm is 123.333 rps, but thinking each of the 6 cylinders fired every 2 seconds (with 3 cylinders firing in one second), I multiplied 123.333 by 3 (cylinders firing) to get the 370 ignitions estimate. What's your thinking on the dividing by 2 part instead?

fast1

7200 RPM = 120 RPS X 3 ignitions/rev = 360 ignitions per second