HD stilluses it to this day..

Thanks everyone. I think I've got it now. To paraphrase:

It is not a 'Traditional' dry sump.
It is not a 'Traditional' wet sump either - mainly due to the fact of the separator of sorts that is at the bottom of the crank, therefore separating the crank area from the oil storage area.
'Integrated dry sump' appears to be a concoction of the marketing guys/gals.

If the above is reasonably correct, it makes sense to me and now I can rest and have a beer. Where else would I get questions like this answered!

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GT Silver CS
1980 Honda CBX
2004 Suzuki SV1000
2006 Subaru Legacy
2002 Honda Insight

The integrated dry sump system gives you the added advantage of having integrated oil channels cast in the block, eliminating issues of hoses and pipes and other plumbing which will interfere with reliability.

To be fair, though, HD's dry sump system evolved from it's earliest oiling system...a total loss system, where the rider would pump a little oil into the engine by hand every once in a while. It all got burned, none was scavenged. There WAS a separate oil tank, though.

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mmmmmmmmmmm beeeeeeeeeeeeeeerrr

2001 Corvette Roadster

Sounds like Porsche eventually paid HD back by helping with the V-Rod motor....

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GT Silver CS
1980 Honda CBX
2004 Suzuki SV1000
2006 Subaru Legacy
2002 Honda Insight

Sorry to bring this back to from the dead. But I'm very interested in the strength of the integrated dry sump. Since it is not a true dry sump, will it still hold up to lapping days with r-compound tires.

I'm assuming that for wheel to wheel racing in a prepped car, a true dry sump is needed. But will the "integrated" sump system hold up? I've heard of blue smoke of death that is due to oil starvation on the newer motors with the integrated dry sump.

Lots of people successfully track their cars (many with R-compound tires) with little or no problems. I've done more than 30 track days in mine, all in either advanced or instructor run-groups most of it with R-compound tries - never had a problem. There are a few people on here who have race-prepped their cars for PCA Club Racing or POC racing, and to my knowledge they are doing it with the stock integrated dry sump set up. Switching the motors over to a "true" dry sump system would be very expensive, imo - probably prohibitively so.

The smoke problem has nothing to do with oil starvation - it;s a problem with the Air/Oil separator - under certain conditions, the stock AOS allows oil to get into the intake system, and some folks have installed the Porsche Motorsports AOS to solve this problem.

See this thread: Severe Smoke

For a lot more to read (14 pages/261 posts as of now) about the smoke issue and what some of done to fix it or not.

brad

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21-year PCA Member
PCA DE Instructor

I have spoken with many people who are club racing their Caymans. Many of them have installed a metal baffle in the oil pan. Some of them state that this installation works better than the AOS. They state that the baffle helps to direct the oil to the pickup and prevents the sloshing. It is not easy to install this device as you have to wet seal the oil pan-a gasket is not available.

The Motorsports AOS is a time consuming install as well. Is the baffle a purchased item or must it be "manufactured" to fit? Has anyone here on CC implemented this fix?

Call or PM Alex at Princeton Porsche. He will give you all the details.

Or go to the Mantis sport website and you can see their solution.

My God, that's like a chimpanzee inventing a sling shot...

Actually a sump extension employing a windage tray is quite common in racing engines. Check out the articles section here for more info.