http://www.edmunds.com/insideline/
Test: 2009 Porsche 911 Engine Oil Sump Test Rig
Location: Porsche Research and Development Center, Weissach, Germany.
The 2009 Porsche 911 Carrera and Carrera S mark the debut of Porsche’s latest flat-six engine architecture. During the development of its next-generation of engines, Porsche created a test rig to evaluate oiling system enhancements. This rig replicates the g-forces experienced by a 911 on the Nurburgring Nordschliefe circuit.
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Only Germans can do that !!!!! Porsche rules the Ring !!!!! 1000 years to the 3rd Reich !!!!
almost all porsches have dry sump
i changed the oil on a 1992-3 porsche (idk what it was off hand) but it was a flat 6……14 qts later….and i was still amazed. That was MY first experience with dry sump lol
which means porsche hasn’t thought about the few who do, probably the only people who should be buying porsches anyway.
Porsche moved away from “dry sump” systems for the vast numbers of 996 and 997 Carreras because the majority of drivers don’t need it, and because it has reduced oil leaks substantially. There are baffles available to enhance the anti-slosh characteristics of these engines, to the point of even mounting racing slicks. The majority of Carrera owners can’t possibly put their cars in an oil-starvation mode. (I have an 06 S cabriolet).
Well they have an “integrated dry sump” which isnt a real dry sump like on 993s but in all the porsche brochures it talks about mainting proper lubrication in high g situations
do u know bout overheating i got t his last year u got msn
Mmmmm….Lets take a look to some technical documentation like “service manuals”,or to any technical book about Porsches,like the one written by Jorg Austen and Sigmund Walter (Porsche technicians).At last,if you don’t believe me, go to any Porsche dealer and ask.Or,even simpler,ask to anyone who owns a 997\996 to open the bonnet,look inside,and you will not find any oil tank.
They have a so called “integrated dry sump”,which is like a normal wet sump,rubbish.
i think the 996 with the 3.6 had dry sump and definitely the 997s.
I have a 996 C2 3.4,and it hasn’t got dry sump,it hasn’t got a tank for the oil.
All 911 (except for the GT3 GT2 Turbo) models after the 993 don’t have dry sump.
They have a wet sump,which unfortunately doesn’t even work very well!
nope, pretty sure they all do
Only Gt3,Gt2 and turbo models have dry sump.
The angle of repose of the oil with respect to the pickup is important but well-known Porsche engine problems (928 and 944) were due to high levels of air entrainment in the oil. This is a different root cause of failure. With the integrated dry sump (Porsche’s name for an advanced wetsump/drysump hybrid) you can be assured this is the primary concern — static repose angles can be hand calculated. Deeply entrained air is much more difficult to deal with lacking dedicated deaeration systems.
The rig _attempts_ to model transitions by having 130 degrees per second rotational capability. First, the path of the oil moving to the sump through the engine is constrained by no such arc. Second, the path of the oil on its way to the sump is influenced by G and possible extended lateral acceleration which the rig only models for a fraction of the actual possible time. Hydraulic rams to move the test bed could model this for a longer time and more accurately. It all costs money, of course.
I think it is fascinating that there was such a mixup over who engineered the platform and its location (Remscheid versus Weissach). I don’t think Edmunds came up with that notion on their own. Perhaps merely a video was shown at Weissach. Schrick’s site clearly shows the testing room and alludes to further capabilities on request. Thank God, otherwise it would be somewhat of a lost opportunity.
thanks 4 sharing this shows how dedicated to the 911 porsche are after 30 years they can still make a unique design even better
thanks, at least one who understands the rig
Just wanted to add that 911 engines are dry sump, so I should have just said “oil,” and not “oil in the sump.”
At 1g cornering on a flat road, the angle of the oil in the sump will be 45° – the vector sum of 1g vertical (gravity) and 1g lateral (cornering). The goal of this rig is to put the oil level at the same level/angle that it will see on a track to see if starvations occures, *not* to apply the same force to the mechanical components that it will see on the road. Netmaster78 has it.
lan piçler nas?l yapiyonuz bunlari anlamad?m gitti
always remember what the physicists Harvey Goldberger said– “The unit of one is equal to the inverted likeness of itself” that should explain it all.
Back to first grade physics for you…
what ever… believe what you want to believe
Centripetal force is what moves the oil under cornering on track and a small component of gravity.
On the rig those forces are provided by gravity and the engine is angled to provide the correct application of gravitation pull on the oil. Gravity is 1g therefore the rig cannot simulated more than 1g of force on the oil.
yes,I agree.
The new Zune browser is surprisingly good, but not as good as the iPod’s. It works well, but isn’t as fast as Safari, and has a clunkier interface. If you occasionally plan on using the web browser that’s not an issue, but if you’re planning to browse the web alot from your PMP then the iPod’s larger screen and better browser may be important.
i didnt know that, is there another article like that? because i really wanna know more about it
Between me and my husband we’ve owned more MP3 players over the years than I can count, including Sansas, iRivers, iPods (classic & touch), the Ibiza Rhapsody, etc. But, the last few years I’ve settled down to one line of players. Why? Because I was happy to discover how well-designed and fun to use the underappreciated (and widely mocked) Zunes are.
The Zune concentrates on being a Portable Media Player. Not a web browser. Not a game machine. Maybe in the future it’ll do even better in those areas, but for now it’s a fantastic way to organize and listen to your music and videos, and is without peer in that regard. The iPod’s strengths are its web browsing and apps. If those sound more compelling, perhaps it is your best choice.
The new Zune browser is surprisingly good, but not as good as the iPod’s. It works well, but isn’t as fast as Safari, and has a clunkier interface. If you occasionally plan on using the web browser that’s not an issue, but if you’re planning to browse the web alot from your PMP then the iPod’s larger screen and better browser may be important.