Tke... in another thread noticed I went from a 6GT3 to a 997S and that I do a bunch of track work. He was concerned about my enginer since I was going to a wet sump from a dry sump engine. He had just seen a NA non-dry sump engine blow at Daytona.

Question: I know a bunch of people have tracked their 997S. Any issue so far with engines and the lack of a dry sump? I know Porsche has marketed this engine as a semi dry sump (whatever that means) and thus it is supposed to be more robust than the 996. True?

 

Sorry didnt mean to second guess ya! I am sure you (and I for my 997 friends) will get answers from the experts on this board!!

tom

 

I believe that the 986/987 and 996/997 motors are all basically the same "semi dyr sump" motors.
Only the GT2/GT3 and turbo's have the true dry sump design.

 

And the 993 - 964 - 911....

 

ECS, from what I have been told there is a oil pan from the GT3 car that fits our 997S engine that helps keeping the oil where it needs to be under high G forces. also from what I have been told is that at Sebring you only need this mod if you run slick and are really going all out and that on street tires you will not hit the g-forces that would require you to get this Porsche oil pan. Anyway I might do this mod since it only cost's a few hundred dollars. Suncoast Porsche in Sarastoa has this pan and will know what you need.

 

I've seen boxsters, 996s and 997s have a smoking fit after a big spin (lots of oil dumped into the intake?). Although the cars were OK after a while, it was a great worry to the owners at the time.

 

Hey All,

NO, GT3 engine parts will exchange with the 997 street engines. Completely different design. Might as well be a Toyota engine compared to the GT3 motor....

 

Brey-Krause sells a sump pan and Porsche has an internal baffle upgrade available. There is also a kit that is sold for Grand Am 997 race cars...I would think Synergy would be a source for it as they are building 997 based racers...

 

No GT3 "oil pan".

 

The 997 is the best of the "new motor" design, with scavenging pumps to move the oil from out in the cam covers back into the sump. If you are just tracking your car, I would make sure that you keep the oil topped up, and run a high grade synthetic oil. You should not have any problems.

Don't forget that 356s, 914s, 944s and 928s are all wet sumps and no one is "afraid" to track them. I think that the 3.4 motor's oiling system was a weak design, but it seems like all "wet sump" motors are guilty by association now.

 

hum.... there's no oil pan per se for GT cars. it's the bottom of two halves of the case, very unlike the M97/96 engine.

i dont know how it will fit.

 

I would talk to some of the teams running them in GrandAM GS if I was worried about it

 

After losing the number two bearing twice in two years in my 944, I now have a 993 for the track

 

2 (944/951/968) and 2/6 (928) bearing problems are a common fear when racing FEWC Porsches.

 

Yeah but it's a design problem with the crank, not a starvation problem because of the wet sump.