After reading many posts about DME and overrevs, I am at a quandary. Help please! Looking to acquire a 987 Spyder... long story short, everything checks out;however, DME (2011 Spyder with 16k miles)shows:
32,000 range 1 (last approx 40hrs ago)
3100 range 2 (last approx 50hrs ago)
0 range 3+
would not be concerned with "some" range 1-2, but this seems quite high (approx 1.6min at 1 and 0.15min at 2). Any comments would be greatly appreciated.

 

Range 1 is incredibly easy to hit, the car pulls hard once you get past 4500 RPM and the power doesn't even remotely taper. If you're not watching the RPM you can very easily hit the limiter, especially when passing on a two lane road when your focus is the road ahead and not the RPM's.

As far as range two, that is a miss shift but it appears to have happened a while back.

Here's a great link that describes the overrev http://www.911virgin.com/porsche/rev-range-information/

 

Range 1 & 2 are nothing to worry about as far as possible engine damage. They can occur with aggressive (or very aggressive) driving by hitting the rev limiter. Range 3 or over would cause concern.

Basically, someone really enjoyed the car.

 

Range 2s are not from a money shift. Just hard driving and nailing the rev limiter, and aggressive down shifts. With 32,000 range 1s I highly suspect a tracked car, NTTAWWT.

 

thank you for the informative replies gentlemen.

 

Good read!

Is a DME report something you can just ask your dealer to print out, say, whenever you're in for an oil change or other routine service?

Do the dealers typically charge for the report?

Thanks.

 

I've received "free" DME reports form the dealership when in for an oil change.

We have also seen DME reports provided as part of a paid PPI fee.

You sould be able to receive a free DME report from the dealership as part of the sales process. If not, walk.

Walking into the dealership, and just asking for a DME report, would/should be met with some expected form of payment. Not free in that case.

 

^^^^ Thanks.

 

As noted, with 7,500 rpm the DME would trigger a 'range 2' over-rev, which is below the rev limiter. You didn't mention if a 987.1 or .2. The latter has the 9A1 DI engine, with a higher rev limit (7,800 vs 7,600, I believe). No way that engine was tracked... at least by a competent driver. So no worries.

 

That's not correct. That's not how the redline, rev limiter, and over-revs work.

For example, on a 987.1 (with a redline of 7,200 RPM, not 7,600) over-revs for Range #1 are from 7,200-7,500 RPM. Range 2s would be from 7,500-7,700 RPM. Everything above 7,200 RPM is "hitting the rev-limiter", and they are all over-revs.

I think the redline for the 987.2 is just slightly higher (200-400 rpm bump), but not 7,800 RPM (that's only in the Carrera) and would have similiar math as above.

 

Does anyone know the ranges for 981S's? With redline at 7600, maybe 7600-7900; 7900-8100 for ranges 1 and 2?

Does Softronic still raise rev limiter like it did on the last gen?

 

IF the redline IS 7,600 rpm, your math looks right.

 

Looks like it's actually 7,800 on 981's: http://press.porsche.com/vehicles/20...ifications.pdf

I swear my gauge looks to be 7,600 though... Thanks!

 

Of course it does man. Redline and rev limit are 2 different things. Sometimes they're the same, most times rev limiter higher, and a few times rev limiter lower. As long as you don't exceed the maximum allowed engine speed, which is the REV LIMITER, no damage to the engine. As far as how the over-revs range work, they should be different for each engine, not the same for 3 different engines, where now a 'range 3' over-rev is okay on a 9A1 engine. I'm not familiar with the old engines, but 9A1s redline at 7,600 and have the rev-limit at 7,800. Therefore, if Porsche wants to have a record of revs below redline, the range-1 should be 7,400 to 7,600, range-2 from 7,601 to 7,800 (both allowed), and range-3+ (not allowed) over 7,800. And similarly for each different engine. A rev range falling both into allowed revs and non-allowed revs is just stupid, as you can't know which one was it.

 

Sorry, dude, but you're clueless.