Quote:
Originally Posted by rusnak
IMS failure is sort of it's own separate problem.
I think for conversation sake, it's helpful to separate the engine failures and think of them distinctly.
I was thinking about cylinder scoring, and wondering if Porsche simply do not account enough for engine cooling. Especially with all of the accessories hanging off the motor, lack of any ventilation, sound encapsulation, design to prevent water intrusion, use of 0-xx weight oil, etc etc.
On my Cayman, I didn't even put 3,000 miles on it before I added a center radiator and learned how to change the coolant. I'm wondering if there is a way to upgrade the engine compartment cooling fan, and have it stay on longer. I'm thinking that the "normal" cars' cooling systems are being pushed to the limit, and the more GT style cars get the trick cooling bits, which work much better, and when an engine blows on the track everyone just sort of shrugs and writes it off.
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I'm just guessing here, but I doubt Porsche is trying to compete with Toyota in the engine longevity metric. They may very well be happy to engineer motors that are good for around 130K miles, on average. Maybe somewhere in the middle ground between Toyota and say, Ferrari.