Why no digital dipstick?
12-30-2003, 01:16 PM
#2
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Just a wild-*** guess. But maybe its becuase the engine is a wet sump type?
I was delivering a new S to a customer last night, and he asked me the same thing. He was trading a 99 996 cab. I just said with confidence....Becuase the engines are different.
Peace
PS
I was delivering a new S to a customer last night, and he asked me the same thing. He was trading a 99 996 cab. I just said with confidence....Becuase the engines are different.
Peace
PS
12-30-2003, 04:06 PM
#3
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Not knowing about wet or dry sump, I would suggest to Porsche that they get rid of the analog speedometer and replace it with:
1. outside, inside temp.
2. .......??
1. outside, inside temp.
2. .......??
12-31-2003, 11:05 PM
#4
Does not matter wet or dry. The only difference is that you measure a dry sump system while the car is idling and you measure a wet sump when the car is not running.
My mercedes has a digital oil gauge. In fact, the car does not even have a dip stick. That car is a wet sump.
My 911 Turbo is a dry sump and also have the digital gauge. No stick either.
So I can be done with either system.
My mercedes has a digital oil gauge. In fact, the car does not even have a dip stick. That car is a wet sump.
My 911 Turbo is a dry sump and also have the digital gauge. No stick either.
So I can be done with either system.
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01-01-2004, 05:07 PM
#8
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Originally posted by pdxjim
Not knowing about wet or dry sump, I would suggest to Porsche that they get rid of the analog speedometer and replace it with:
1. outside, inside temp.
2. .......??
Not knowing about wet or dry sump, I would suggest to Porsche that they get rid of the analog speedometer and replace it with:
1. outside, inside temp.
2. .......??
My guess is that engine oil may bubble at high revs (even racing oil) in the wet sump (wet sump=crankshaft partially in oil bathtub). Wet sumps are excellent for long period high rev use (re BMW bikes).
Dry sumps feed oil thru supply veins to lube points (But on long term high rev use, the veins can starve & blow engine- happened to me) Harleys oil come in a plastic bag and doesn't recycle thru the engine (But I wouldn't ride a Harley at near top speed for an hour, it would probably blow).
Pcars appear to have the best of both worlds.
Anyone else care to weigh in?
01-05-2004, 07:50 PM
#10
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i wrote a really long reply then looked at the porsche site - here you go ---
http://www3.us.porsche.com/english/u...ubrication.htm
"One of the most important necessities for any high-performance engine is consistent lubrication. On the Cayenne Turbo, we've ensured that consistency on every type of road and terrain.
To do that, we've applied the latest dry-sump technology, using an oil reservoir located inside the engine instead of an external tank. As well as saving space and cutting down on weight, this intelligent solution ensures optimum oil delivery precisely where it's needed most.
Excess heat is extracted from the oil using a dedicated oil cooler system. Not only does this improve the quality of lubrication, it also helps to cool the engine. Oil is circulated using a two-stage oil scavenge system, ensuring optimum delivery in even the most extreme off-pavement scenarios. Indeed, the Cayenne Turbo models can traverse, climb and descend virtually any terrain up to 45°.
On the Cayenne Turbo, we've used a dedicated oil-spray cooling system to maintain lower temperatures on each of the pistons.
To improve off-pavement performance, each of the twin turbochargers is equipped with a separate lubrication system, including an oil tank, check valve and dedicated oil scavenge pump. "
http://www3.us.porsche.com/english/u...ubrication.htm
"One of the most important necessities for any high-performance engine is consistent lubrication. On the Cayenne Turbo, we've ensured that consistency on every type of road and terrain.
To do that, we've applied the latest dry-sump technology, using an oil reservoir located inside the engine instead of an external tank. As well as saving space and cutting down on weight, this intelligent solution ensures optimum oil delivery precisely where it's needed most.
Excess heat is extracted from the oil using a dedicated oil cooler system. Not only does this improve the quality of lubrication, it also helps to cool the engine. Oil is circulated using a two-stage oil scavenge system, ensuring optimum delivery in even the most extreme off-pavement scenarios. Indeed, the Cayenne Turbo models can traverse, climb and descend virtually any terrain up to 45°.
On the Cayenne Turbo, we've used a dedicated oil-spray cooling system to maintain lower temperatures on each of the pistons.
To improve off-pavement performance, each of the twin turbochargers is equipped with a separate lubrication system, including an oil tank, check valve and dedicated oil scavenge pump. "
01-07-2004, 02:35 PM
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This also applies to the Cayenne S - except it does'nt have the dedicated oil-spray cooling system for each piston for what I read on the website.Please correct me if I'm wrong.
