iamderek

i just talked to service at porsche, they told me the 997 IS dry sump. there is not an oil pan, there is an oil inspection pan, but the oil is not housed in that pan, nor housed in the engine as a normal "wet sump" lubrication would be, then he got into all the technical aspects of it and (sorry) my eyes glazed over.

I have googled this to death, have found nowhere that states the 997 is wet sump other than on the message boards.

this link has the technical data of 997 and 997s.

http://www.356-911.com/post1974/mode...sguide/997.htm

here's another link to a long (37pg) document about the car, twice in the writing it refers to dry sump lubrication, that there are 3 oil pumps etc...http://celestri.org/docs/2005-911.pdf

rss997

Not a true dry sump, sorry!

vegasgolf98

Derek, I believe it is called a mechanical dry-sump (they called it the same thing in the 996 and 986/7), which is supposed to act like a dry sump, but it does not have an external oil pan. So, it is not a try dry sump.

BTW, I've heard that PMS is testing this mechanical dry sump in its RSR's, so maybe it will be fine, or not.. . . .

mooty

derek, 997 is NOT dry sump. if it has no oil tank, it's not dry sump.

but, i wouldn't worry about it too much. unless you run slicks, you won't blow up your motor, dry or wet sump.

MJones

Porsche Speak:

Both the new 3.8 litre engine and the 3.6 litre engine feature the familiar
integrated dry sump lubrication system.
Similar in concept to classic dry sump lubrication, with integrated dry sump
lubrication there is no external oil tank.
It combines the advantage of dry sump lubrication – a reliable oil supply even
with high lateral and longitudinal acceleration – with a significant reduction in oil
quantity and system weight.

Cogito

Thanks. While I wait for my P car to come in, I've been visiting these forums often to help pass the time and to learn all I can. Was wondering how it could be both wet and dry sump at the same time.

iamderek

honestly, it doesn't really matter to me. i ran my e46 m3 at the track, running mpsc's never had oil starvation problems and i was running pretty quick laps times (when i timed them), never had any problems with oil in that car save for it getting really hot!

i was just curious about the whole thing; either way, i really like my car! just wish i had another 1000rpm's!

Leon993

997 Turbos and the GTs are true dry sump. Other Carreras, as stated above by others, are not.

gota911

Leon,

You revived a 6 year old thread.

boolala

There's actually some medication you can take for your obsessions.

Taxi?

That might be a record....................a record worth breaking!

chicabum

__________________________
I followed the link you posted (not the 37 pages one).
997 doesn't have a classical dry Sump system. and the documentation doesn't say otherwise, just misleads you. it adds the integrated; "An "Integrated Dry Sump" is not a dry sump (The oil is housed inside the engine). well ...
A dry sump system has an external oil reservoir, necessarily.
The 997 doesn't.
As I understand the 997 stores oil somewhere else inside the engine, emulating the effects of a classical dry sump. Just because the early attempts were less than perfect, it doesn't mean the system is bad. It might even be better. I wouldn't worry about it. Porsche is trying to keep the sump dry and avoid oil starvation with new technology and I believe in Porsche. I think all the confusion is because the public wants Mezger engines with dry sumps. So Porsche tries to keep the myth alive. Personally I think it would be better to assume "we moved on".

If you want to be more specific. The sump is wet or dry. The bottom of the engine is always there. The oil reservoir which holds the oil that otherwise would be at the bottom of the engine (Sump) is what is now integrated inside the 997's block. The system tries to do the same thing; prevent oil starvation in the engine when the car is under heavy g forces, which moves the oil inside the sump and could drive it away from the oil pickup point inside the sump. A separate reservoir ensures there is always oil flowing... The 997 tries to do the same thing but with an internal reservoir instead of an external reservoir.

I love old cars, but...
Mezger retired before the air cooled Porsches...and the classical dry sumps are gone for the road going Porsches.

I never drove a 991GT3RS, but I have no doubt it is the best.

The king is dead, long live the king.

Please, any corrections or additions are welcome.

pavster

Eh, should have waited a couple more years!

alexb76

What everyone said... it is not dry-sump... and you MAY have oil starvation problems if you run slicks.

porscheralph

I believe the last true dry sump system was on the 993. Just saying.