Preliminary verdict on the 9A1?
10-19-2014, 03:43 PM
#1
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Preliminary verdict on the 9A1?
Has it been out long enough for the tech oriented guys among us to pass judgement on the longevity, reliability etc.? I know the theoretic issues include carbon buildup, decreased oil life and I guess not much else. Nothing bad seems to have panned out so far, and I think they do use it in the GT3 program. Does everyone agree that it is better than the M96/97 it replaces??
Jim
Jim
10-19-2014, 04:53 PM
#2
10-19-2014, 10:24 PM
#3
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I think they have been theoretic, more than actual concerns Chuck. I can't quote exact sources or data, but most of what I have seen is here on RL. Hence, I am looking for the experience of 991 owners. Who better to opine?
Jim
Jim
10-20-2014, 01:47 AM
#4
Would be interesting to see how many miles these cars are getting. My hunch is a few with 12-15k/yr, but only a very few. Long term wear patterns don't really develop much until there's a pretty good number of cars with 60-100k miles on them. Does anybody here have even 50,000 miles yet?
10-20-2014, 04:20 AM
#5
Porsche answered this question themselves and ironically it seems to have played out with people's opinions on the reliability and desirability of each motor.
The M96 was only good enough for Boxsters, Caymans, and low-end 911's.
The 9a1 is good enough for the same plus Turbo and GT3 models.
The Mezger is good enough for racing.
The M96 was only good enough for Boxsters, Caymans, and low-end 911's.
The 9a1 is good enough for the same plus Turbo and GT3 models.
The Mezger is good enough for racing.
10-20-2014, 07:43 AM
#6
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Keeps tabs on the 997 Forum. Same motor over there too. Keep tabs on Jake Raby's posts from Flat 6 Innovations.
The 9A1 motor has seen some issues like cylinder scoring.
There are no perfect cars. Stuff breaks. Fix it and move on.
The 9A1 motor has seen some issues like cylinder scoring.
There are no perfect cars. Stuff breaks. Fix it and move on.
10-20-2014, 07:47 AM
#7
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The head tech at our largest Porsche dealer here says that they haven't had to open up a 9A1 engine yet - the 9A1 was introduced in 2009 so that's 5 years data - encouraging I think.
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10-20-2014, 09:59 AM
#8
Believe it or not there is very little reporting about 991 engine failures to be found on the net as well.
10-20-2014, 09:59 AM
#9
That's what I'm talkin' 'bout. Although, when Nicoli's blew they sure had to open that one up! (In Stuttgart…)
10-20-2014, 10:03 AM
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Would be interesting to see how many miles these cars are getting. My hunch is a few with 12-15k/yr, but only a very few. Long term wear patterns don't really develop much until there's a pretty good number of cars with 60-100k miles on them. Does anybody here have even 50,000 miles yet?
10-22-2014, 07:44 AM
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While not a 991, I have 55,983 miles on my 2010 997.2 C2S, which has the 9A1 engine. So far, trouble free. It consumes about 1 quart of oil between oil changes.
10-22-2014, 08:30 AM
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Just hit 50,000 miles on my '13 991 C4S.
When I had the 40,000 mile major service, which includes changing plugs, I noticed a big increase in the "crispness" of performance for want of a better word.
When I had the 40,000 mile major service, which includes changing plugs, I noticed a big increase in the "crispness" of performance for want of a better word.
10-22-2014, 01:59 PM
#13
Burning Brakes
Lol j/k congrats on driving a drivers car.
10-22-2014, 02:44 PM
#14
Yeah I would hope fresh plugs after 40,000 (!) miles would make a difference.
Did you get a look at the old ones? Nice even tan/brown and all the same I hope. I've never seen a set that has gone that long. How'd the electrodes look?
10-22-2014, 02:48 PM
#15
Spark plugs can go a long way these days ..
I had my CLS55 spark plugs changed. you can see the OEM plug has lasted very well in 45k miles and 8 years .. very impressive. They didn't need changing, but they were changed.
I had my CLS55 spark plugs changed. you can see the OEM plug has lasted very well in 45k miles and 8 years .. very impressive. They didn't need changing, but they were changed.