911 GT3 operating hours vs mileage
Discussion
I've been looking to change to a more involving and direct car for so long it's getting ridiculous. I'd finally settled on the idea of a 997 GT3, and have done much research on the subject.
Went to see a few, decided I'd found 'the one', from a very decent seeming trader, then I asked for the overrev report.
There has been one incidence of a cat. 4 overrev in the car's history - backed up by the corresponding cat 3 and 2 both having been buzzed at the same time. Cat 4 for 70 ignitions. This happened 74 hours ago.
This does not completely put me off the car, but the mileage (47k km) vs total logged running hours of 474 seems a little optimistic, doesn't that equate to nearly 100 kmh (60 mph) over the lifetime of the car? I would have thought that a principally road based car would never manage more than about 30-40 mph?
Would anyone else care to share their running hours vs distance travelled? Has anyone else got close?
Cheers chaps and chapesses.
Went to see a few, decided I'd found 'the one', from a very decent seeming trader, then I asked for the overrev report.
There has been one incidence of a cat. 4 overrev in the car's history - backed up by the corresponding cat 3 and 2 both having been buzzed at the same time. Cat 4 for 70 ignitions. This happened 74 hours ago.
This does not completely put me off the car, but the mileage (47k km) vs total logged running hours of 474 seems a little optimistic, doesn't that equate to nearly 100 kmh (60 mph) over the lifetime of the car? I would have thought that a principally road based car would never manage more than about 30-40 mph?
Would anyone else care to share their running hours vs distance travelled? Has anyone else got close?
Cheers chaps and chapesses.
civiclegend said:
Its a Swiss/German (having spent half its life in each) car. So it could conceivably have done some serious Autobahn smashing, but those that drive those roads know they're rarely that fast... pretty jammed up, much like the UK, much of the time!
swiss gt3 lol town driving in swiss is 60kph to 50kph and max speed limit is 120kph on the motorway ...and u will never break that limit unless you are super rich to pay the fines or don't mind doing some prison time or both..in case u get caught ...if he lived in the mountains ...he must be pretty handy to drive above that as a average on mountain roads
civiclegend said:
Shame, as I really wanted a wed wun... 
There's a Guard's Red one on Autotrader (if you can deal with RHD):http://www.autotrader.co.uk/classified/advert/2017...
Best of luck with your search!
Amazingly, GT3 values are a little softer here in sunny Switzerland, maybe because it is harder to drive them to their potential unless you live on the German/Italian border! The 997.1s I have been looking at are similar mileage to that, but equivalent to about GBP 70k. Ok some of that is mk1 vs mk2, but definitely feeling the winter blues in the values here. There is a black 997.2 with 55k on the clock for GBP 67k.
civiclegend said:
Amazingly, GT3 values are a little softer here in sunny Switzerland, maybe because it is harder to drive them to their potential unless you live on the German/Italian border! The 997.1s I have been looking at are similar mileage to that, but equivalent to about GBP 70k. Ok some of that is mk1 vs mk2, but definitely feeling the winter blues in the values here. There is a black 997.2 with 55k on the clock for GBP 67k.
might also have something to do with the swiss franc inversing itself on all currency's recently and with gbp brexit blues My car is a high miler, the previous owner having used it purely on the road and including a fair amount of UK motorway driving for a couple of years, and its mileage vs hours at the time i bought it gave an average of 30mph.
I would think the only way to get near a 60mph average would be if the car has done almost purely track days and autobahn smashing its whole life. Combine that with an overrev 4 70 hours ago and I'd personally be nervous about that engine.
Not sure how much of an engine inspection would be required to give peace of mind (e.g. just a compression test, or engine out/heads off etc)?
I would think the only way to get near a 60mph average would be if the car has done almost purely track days and autobahn smashing its whole life. Combine that with an overrev 4 70 hours ago and I'd personally be nervous about that engine.
Not sure how much of an engine inspection would be required to give peace of mind (e.g. just a compression test, or engine out/heads off etc)?
braddo said:
My car is a high miler, the previous owner having used it purely on the road and including a fair amount of UK motorway driving for a couple of years, and its mileage vs hours at the time i bought it gave an average of 30mph.
I would think the only way to get near a 60mph average would be if the car has done almost purely track days and autobahn smashing its whole life. Combine that with an overrev 4 70 hours ago and I'd personally be nervous about that engine.
Not sure how much of an engine inspection would be required to give peace of mind (e.g. just a compression test, or engine out/heads off etc)?
Leak down test at minimum. Dyno run to see if all gee gee's are present. 70 hours ago would indicate you're out of the immediate danger zone, but there could be issues lurking that could bite you in the arse as the miles stack up.I would think the only way to get near a 60mph average would be if the car has done almost purely track days and autobahn smashing its whole life. Combine that with an overrev 4 70 hours ago and I'd personally be nervous about that engine.
Not sure how much of an engine inspection would be required to give peace of mind (e.g. just a compression test, or engine out/heads off etc)?
As the mileage/hours don't really tally, I'd walk and find one with a clean over rev report/mileage hours run. Life's too short to be sweating whether you've bought a good one/will it/won't it go bang.
Believe its /3 for the revolutions, and you calculate basis the max allowable engine speed.
23 engine revolutions. Thus 0.16 seconds.
I`m sure not really a reaction but more of a horrible instinctive feeling of what you`re about to do, almost before you`ve done it and clutch back in instantly. Sadly momentum carrying the revs over the threshold.
23 engine revolutions. Thus 0.16 seconds.
I`m sure not really a reaction but more of a horrible instinctive feeling of what you`re about to do, almost before you`ve done it and clutch back in instantly. Sadly momentum carrying the revs over the threshold.
civiclegend said:
Would anyone else care to share their running hours vs distance travelled? Has anyone else got close?
When I replaced my 996 GT3 ECU, it had logged 1700 hours & 85K miles, so exactly an average of 50mph; I know that's pretty high in the GT3 world. I did all but 20K of those miles and the car had led a sheltered life before I got hold of it 
It's hard to achieve, but I reckon with a decent amount of German autobahn use it could be done.
nxi20 said:
When I replaced my 996 GT3 ECU, it had logged 1700 hours & 85K miles, so exactly an average of 50mph; I know that's pretty high in the GT3 world. I did all but 20K of those miles and the car had led a sheltered life before I got hold of it
It's hard to achieve, but I reckon with a decent amount of German autobahn use it could be done.
Slightly off topic, but my ECU/DME was recently replaced under warranty by the OPC. They didn't mention anything about logging the previous data. Should I have a chat with them to see if they kept the data for when I come to sell? The new ECU will obviously not show the previous operating hours over revs etc.It's hard to achieve, but I reckon with a decent amount of German autobahn use it could be done.
finestjammy said:
Slightly off topic, but my ECU/DME was recently replaced under warranty by the OPC. They didn't mention anything about logging the previous data. Should I have a chat with them to see if they kept the data for when I come to sell? The new ECU will obviously not show the previous operating hours over revs etc.
Depends on why it was replaced. If it was fried the data may be unavailable, but in any case, as it was done by the OPC, the ECU change will be logged on their system against your VIN. I still have my old ECU from when I changed it for a Syvecs.Gassing Station | 911/Carrera GT | Top of Page | What's New | My Stuff