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jl-c
Silverstone


Joined: 22 Jul 2013
Posts: 126
Location: Shropshire


PostPosted: Wed Feb 20, 2019 10:03 pm    Post subject: Reply with quote

I shouldn't worry, these are mine,

Rev Range 1: 4363 @ 2180.4 Hrs 6800rpm

Rev Range 2: 691 @ 2180.4 Hrs 7000rpm

Rev Range 3: 41 @ 1969.9 Hrs 7200rpm

Rev Range 4: 4 @ 1559.2 Hrs 7700rpm

Rev Range 5: 3 @ 1559.2 Hrs 8200rpm

Rev Range 6: 1 @ 1559.2 Hrs 10200rpm

I would add that ranges 4,5,6 are a spurious glitch and not real over revs, if you want to find out the resulting figure you will see that 4,3,1 connot be real!
Over rev ÷ 3 = RPM over limit ÷ by rpm at time
(the 3 represents one half of the cylinders)
Just bounced it off the limit a couple of times. 2315.2 hours now.
_________________
Porsche Carrera 2S 2005 black fully Hartech'd!, BMW Z4 coupé 2007 blue, Mazda Eunos 1996 yellow, VW Passat 2014 black.


We all do silly things/make mistakes, it's how we deal with them that sets us apart from animals and Americans.
 
  
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squelch
Nürburgring


Joined: 05 Jun 2016
Posts: 449
Location: Bucks


PostPosted: Wed Feb 20, 2019 10:32 pm    Post subject: Reply with quote

Being a PDK overrevs are very hard to achieve (not impossible though) since the gearbox electrickery will not allow a downshift even in manual mode if the road speed means doing so will force engine speed into the higher overrev ranges. Ranges 1 and 2 as shown in your data are at or below the rev limiter.

From your data you can calculate the car has spent 24.5 seconds in Range 1 (7300-7500rpm I think) and less than a second in Range 2 (7500-7700rpm I think). Remember though that the GTS has a higher rev limit than a standard 911 and I don't think the overrev reader takes that into account (it reads it as if it were a standard Carrera) so for the GTS you could argue that Range 1 and 2 are not actually "overrevs" as such.

Circa 25 seconds of overrevs may sound alarming but remember that's not continuously and is across the operating hours of the engine - I don't think it's possible to tell exactly when they happened as the hours recorder just shows the last occurrence (which admittedly is relatively recent in your case).

Porsche has relaxed its previously stringent warranty-ability criteria regarding overrevs and I believe that they pretty much disregard the data in the case of PDK cars anyway.

In summary, while it's nice to have a "clean sheet" the data you've shown would not worry me in the slightest (assuming everything else points towards a well looked after car). And as you're buying from an OPC you should have a couple of years warranty with it anyway. Relax and enjoy Thumb

I'm happy to be corrected but that's my understanding / interpretation of the data.
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From Stuttgart: 997 GTS, 997 GT3 (Kermit)
From Munich: 535d M Touring
From Bologne: Ducati Superlight
Gone but not forgotten: 996 C4S, 964, 924
 
  
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T8
General
General


Joined: 29 Jun 2010
Posts: 15338
Location: Kent


PostPosted: Wed Feb 20, 2019 11:08 pm    Post subject: Reply with quote

AMS911 wrote:


Can someone please reconfirm/explain the results? From my understanding there is only operating hours in Range 1 and 2. Range 3-6 all show 0. Total operating hours are 1001. The cars mileage on the odometer is 32195.

From my understanding roughly 1000 operating hours = 30K



This info on rev-ranges is useful

http://www.911virgin.com/porsche/rev-range-information/

Regarding using the operating hours to corroborate mileage it's not an exact science but an average of 30 mph is usually recognised in the UK so 1000 hours would normally equate to c30k miles.
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