9A2 Achille’s heel inquiry
06-13-2018, 11:05 PM
#1
Pro
Thread Starter
9A2 Achille’s heel inquiry
I used to be a regular on the 997 forum so was very used to the trash talk on the issues of IMS, borescoring (in both 9A1 and M96/97) with lots of good insight shared by Jake Raby at Flat6Innovations. He was open broadly about borescoring issues discovered with the 9A1, having dismantled brand new engines to do forensic inspections that revealed the engine’s supposed Achille’s heel if proper warm up techniques weren’t followed..
Anyway, researching the technical evolutions made to the 9A2 (smaller bore size, iron alloy cylinder sleeves) etc.) has left me wondering what the durability weak link will be in the 9A2. Guessing Jake would be “on it” I sent an email to Flat6Innovations and this was the obscure reply I received. Strange- since he’s been so open about other generations of engines... I wonder if there’s no smoking gun here.. thoughts?
_________________
”Yes, we are working with these engines, and have been since they were released.
I have chosen not to divulge what we are seeing with these engines. There’s lots of fallout that we’d need to avoid, as those things get in our way of learning and applying.
Jake Raby
Founder, President
Raby Engine Development
“
Anyway, researching the technical evolutions made to the 9A2 (smaller bore size, iron alloy cylinder sleeves) etc.) has left me wondering what the durability weak link will be in the 9A2. Guessing Jake would be “on it” I sent an email to Flat6Innovations and this was the obscure reply I received. Strange- since he’s been so open about other generations of engines... I wonder if there’s no smoking gun here.. thoughts?
_________________
”Yes, we are working with these engines, and have been since they were released.
I have chosen not to divulge what we are seeing with these engines. There’s lots of fallout that we’d need to avoid, as those things get in our way of learning and applying.
Jake Raby
Founder, President
Raby Engine Development
On Wed, Jun 13, 2018 at 17:45 <miltezzard@yahoo.com> wrote:Hello- are you guys seeing any inherent problem areas showing up on the 9A2 engines (i.e. bore scoring)? Any plans to offer any products or services around this engine platform?
Thanks!
Thanks!
06-13-2018, 11:19 PM
#2
Rennlist Member
I’m guessing this thread goes 28 pages.
06-13-2018, 11:25 PM
#5
We should all stop driving our cars, and stop breathing, until we get further information!
As they age, maintenance and upkeep will be required, you heard it here first!!
As they age, maintenance and upkeep will be required, you heard it here first!!
06-13-2018, 11:57 PM
#6
The engine in all forms has been with us quite sometime and there have been no systemic problems revealed to date.
There are some from and involved with the motoring media that consider it a modern masterpiece and if you dig around it has won many accolades e.g.
https://www.ukimediaevents.com/engin...ults.php?id=89
"Winning its category class for a third consecutive year, Porsche’s 3-litre six-cylinder turbo engine has firmly established itself as one of the true greats of its generation. Indeed, it’s becoming harder and harder to believe that this engineering masterpiece was – prior to its deployment in the 911 Carrera in 2015 – perceived by a then sceptical auto industry as a bold and controversial move for the Stuttgart-based OEM."
Its worth keeping in mind the engine was designed for two cycles 991 Series 2 and 992 Series 1 - we know the 992 Series 1 cars will have something like - base 400HP, S 450HP and GTS 475HP so there will be plenty of design head room built in.
The track guys and tuners will push the engine to its limits and discover its weak points. I track my GTS spec regularly and haven't hit any obvious issues - oil temps can get warm when pushing on e.g. 120C but nothing extreme as yet. So I would say its looking pretty good, strong and reliable.
.
The one caveat I have is the the pistons in the base are reportedly different (Mike Spineli - The Drive) to those in the S and GTS (we know the S and GTS engines are identical with the exception of the turbo sizing e.g. X51 kit is available for the S but not the base).
There are some from and involved with the motoring media that consider it a modern masterpiece and if you dig around it has won many accolades e.g.
https://www.ukimediaevents.com/engin...ults.php?id=89
"Winning its category class for a third consecutive year, Porsche’s 3-litre six-cylinder turbo engine has firmly established itself as one of the true greats of its generation. Indeed, it’s becoming harder and harder to believe that this engineering masterpiece was – prior to its deployment in the 911 Carrera in 2015 – perceived by a then sceptical auto industry as a bold and controversial move for the Stuttgart-based OEM."
Its worth keeping in mind the engine was designed for two cycles 991 Series 2 and 992 Series 1 - we know the 992 Series 1 cars will have something like - base 400HP, S 450HP and GTS 475HP so there will be plenty of design head room built in.
The track guys and tuners will push the engine to its limits and discover its weak points. I track my GTS spec regularly and haven't hit any obvious issues - oil temps can get warm when pushing on e.g. 120C but nothing extreme as yet. So I would say its looking pretty good, strong and reliable.
.The one caveat I have is the the pistons in the base are reportedly different (Mike Spineli - The Drive) to those in the S and GTS (we know the S and GTS engines are identical with the exception of the turbo sizing e.g. X51 kit is available for the S but not the base).
06-14-2018, 12:33 AM
#7
Rennlist Member
Did this guy Jake give you permission to post a private response to you in a public forum. I'd not be too psyched if someone were to do that to me, especially if I were to have said that I was specifically trying to avoid "lots of fallout."
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06-14-2018, 12:40 AM
#8
Pro
Thread Starter
Did this guy Jake give you permission to post a private response to you in a public forum. I'd not be too psyched if someone were to do that to me, especially if I were to have said that I was specifically trying to avoid "lots of fallout
06-14-2018, 12:54 AM
#10
The answer is no - nothing so far - no evidence of anything identified that is systemic
06-14-2018, 08:22 AM
#12
Burning Brakes
I am buying a 2013 C2S. Which engine does this car have?
Thank you very much,
CB
06-14-2018, 08:28 AM
#13
I used to be a regular on the 997 forum so was very used to the trash talk on the issues of IMS, borescoring (in both 9A1 and M96/97) with lots of good insight shared by Jake Raby at Flat6Innovations. He was open broadly about borescoring issues discovered with the 9A1, having dismantled brand new engines to do forensic inspections that revealed the engine’s supposed Achille’s heel if proper warm up techniques weren’t followed..
Thanks.
06-14-2018, 08:33 AM
#14
Good rule is avoid going over 4K RPMs until the engine is at operating temps.
06-14-2018, 08:43 AM
#15
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So far, we are not seeing the "Tick Tick Boom" (yes, Jake ran this ad in Pano several years ago for the M96) with the 9A1 motors. Too soon to gauge much on the newest 9A2.....but I wouldn't lose any sleep over it.