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How bad is the M97 engine?

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Old 03-17-2017, 06:05 PM
  #31  
Cuda911
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Originally Posted by Quadcammer
yeah, ok. how many events does he oversee personally?
Dozens a year. Pretty much every weekend, throughout the country.

Personally, I HIGHLY recommend the deep sump and baffled oil pan for track use. I do have a friend whose motor went kaflooey on the track due to oil starvation. I put it in my track Boxste'.
Old 03-17-2017, 06:18 PM
  #32  
5CHN3LL
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I only put Joe Bibbs in my Forscheland Forsche.
Old 03-17-2017, 06:21 PM
  #33  
TonyTwoBags
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I'd really like to do another HPDE this year so thanks for the input Mike. Seems like you track your m96(s) fairly regularly. Do you only track the boxsté to limit your risk & keep the 996 for street?

The canyons here are a blast so it's not a big deal either way. I just don't want to grenade it and have to gut my trading account.
Old 03-17-2017, 06:22 PM
  #34  
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So the question you're posing the 996 forum members: "How reliable is the engine you don't own?"

Makes sense to me.

Originally Posted by johnireland
Because the question is being asked of 996 owners. For me, track worthy and street worthy meet when you make repeated visits to 6000-6500 rpms. My understanding is that the M97 fixed the IMSB with a focus on street use, at the expense of track use. I am not aware of any difference in the bearing in the 3.6 and 3.8 M97 engines. Excuse me if I offended you in some way. I was under the impression this was a forum for technical discussion.
Old 03-17-2017, 06:25 PM
  #35  
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Originally Posted by TonyTwoBags
I'd really like to do another HPDE this year so thanks for the input Mike. Seems like you track your m96(s) fairly regularly. Do you only track the boxsté to limit your risk & keep the 996 for street?

The canyons here are a blast so it's not a big deal either way. I just don't want to grenade it and have to gut my trading account.
His 996 blew chunks during a PCA-organized backcountry road tour - which is definitely NOT a high-performance event. NOT tracking a 996 doesn't guarantee anything...
Old 03-17-2017, 06:33 PM
  #36  
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Understood, I remember that thread. Just curious how some of the long term members view the risk.
Old 03-17-2017, 06:39 PM
  #37  
Cuda911
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Originally Posted by TonyTwoBags
I'd really like to do another HPDE this year so thanks for the input Mike. Seems like you track your m96(s) fairly regularly. Do you only track the boxsté to limit your risk & keep the 996 for street?

The canyons here are a blast so it's not a big deal either way. I just don't want to grenade it and have to gut my trading account.
I used to track the 996, but then bought the Boxste' to track since I don't mind abusing it. So, my 996 is my DD, street use only now. In my opinion, ZERO mods are needs for canyon blasting. Do change the oil frequently, though. I Highly recommend Mr. Pibb.

Regarding HPDE: In my opinion, the oil starvation issue can have a lot to do with two factors: 1) The track configuration: does it have large sweepers, such that the oil is forced to one side for extended periods? 2) Are you using super-sticky rubber and are you a good enough driver to be driving those sweepers such that you are generating high G-forces? If not, oil starvation is probably a very minor concern.
Old 03-17-2017, 08:25 PM
  #38  
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Good stuff, thanks for the insight. Started using Pibb last fall & am getting ready to order a new batch. The track out here is nearly all left hand turns with half a dozen sweepers, so I'm not planning to go back.
Old 03-17-2017, 09:38 PM
  #39  
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I will say, however, I tracked my 996 "out of the box." Zero mods other than the header-back Fabspeed exhaust. The only issue I had was once I overwhelmed the AOS... my fault... oil level was too high, and again, the sweepers were the culprit that caused the problem.

Also, once while I was on the track, my seat belt alarm started going off like crazy. Now I can't get the seat belt light on the dash to clear. Again, happened during hard turning on a big sweeper.

I guess these cars were just designed for the drag strip.
Old 03-17-2017, 10:30 PM
  #40  
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Originally Posted by Quadcammer
somehow my buddy who does 30 track days a year in his 993 never had to modify the oil pan, the thermostat, add radiators, go to a different oil filter setup, replace engine bearings, etc etc.
You are correct. I never gave a second thought to tracking my 964 or my 993. And that is why Porsche used those engines for the racing cars and the turbos they built for the 996/997 era.

By the way here is a link to the 996 of Ferraris...

http://www.beverlyhillscarclub.com/1...ial-c-6936.htm

The 308 V8s also had oil starvation issues when they changed the engine from longitudinal to transverse.
Old 03-18-2017, 01:52 AM
  #41  
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Originally Posted by 5CHN3LL
I only put Joe Bibbs in my Forscheland Forsche.
Bibbs makes a mean oil. And frozen breakfast sausage.
Old 03-18-2017, 02:42 AM
  #42  
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whoops
Old 03-18-2017, 11:03 AM
  #43  
Gonzo911
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Originally Posted by Quadcammer

That said, the M96 and M97.1 are equally crappy, and I own an M96 car.
FIFY
Old 03-18-2017, 11:52 AM
  #44  
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Originally Posted by Woodman71
Bibbs makes a mean oil. And frozen breakfast sausage.
Excellent lettuce, also. Although, as a good friend once observed, lettuce is not food. It's what food eats.
Old 03-19-2017, 08:54 AM
  #45  
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Originally Posted by Gonzo911
FIFY
well officially that would be the 9a1 motor but I yet your point


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