How serious is the oil starvation problem with R-compounds?
#1
Pocket Sand
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How serious is the oil starvation problem with R-compounds?
I've read a lot on the pcar forums that 996's experience oil starvation because of the uber cornering that can be acheived with R-compound tires. Is this a big problem that will nuke my engine? Can i compensate for it by making sure the oil level is right at the top bar of the oil meter? (i really want to run R tyres this year at the track)
also, who was the company who makes that add on oil kit to fix this problem?
also, who was the company who makes that add on oil kit to fix this problem?
#2
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It's enough of a problem that Porsche Motorsports sells an oiling kit for use on the track. Brae-Krause(sp) also sells a kit which is a lot less expensive and approved for PCA club racing.
#3
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My understanding is that the oil starvation issue is more likely to occur with slicks than R-Compounds. However some here have noticed a decrease in pressure when in long sweeper type corners. In my local region there are a few 996s driven on r-comps by regulars and none have had an engine oiling issue as yet so far as I know. YMMV.
-KJ
-KJ
#4
Nordschleife Master
It is suppoosedly a problem with the 3.4l engines, only on slicks and not on R-compounds. Have had one poster claim a "nuked" engine on a long right handed banked sweeper, with video showing engine smoking. Don't believe the BK solution is a solution. OTOH, as has been stated, there are a lot of 3.4l engines running with R-compounds with no issues.
#5
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^ that's good to know. what about during tighter left-right left sections of a track?
what's the difference between the porsche motorsport and the BK kits aside from price?
what's the difference between the porsche motorsport and the BK kits aside from price?
#7
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As I recall, the warning was about slicks not R compound. When I had my 3.4L I took a 140 mph right hander at Brainerd hundreds of times with no ill effects. I spoke to a bunch of the Grand Am Cup teams last year and none of the ones I spoke to were worried about it. I think the Porsche Motorsports fix was a CYA and the BK fix is a way to make a quick buck.
Just my opinion. I'm sure now I'll grenade at Atlanta next week.
Jim
Just my opinion. I'm sure now I'll grenade at Atlanta next week.
Jim
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#8
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CYA?
good to know its not something for me to loose sleep over.
good luck @ atlanta. what series/class are you running in, will it be show on tv?
good to know its not something for me to loose sleep over.
good luck @ atlanta. what series/class are you running in, will it be show on tv?
#9
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Dead,
I'm not saying you shouldn't worry. I'm just saying I've never had a problem and it doesn't seem like others that are racing the cars are having trouble either. I guess I am saying you shouldn't worry. Never mind.
I PCA Club Race in Class C. This will be my third season in my 99 996 which has been upgraded to 04 specs. 3.6L X51, etc. No TV, no prize money. Just fun.
Jim
I'm not saying you shouldn't worry. I'm just saying I've never had a problem and it doesn't seem like others that are racing the cars are having trouble either. I guess I am saying you shouldn't worry. Never mind.
I PCA Club Race in Class C. This will be my third season in my 99 996 which has been upgraded to 04 specs. 3.6L X51, etc. No TV, no prize money. Just fun.
Jim
#10
My old 3.4 would drop the oil pressure below the level at idle in both left & right sweepers on street tires. It bothered me and was one of the reasons to move up to the GT3. Not an issue anymore...
#11
Nordschleife Master
I'd be curious to see the data on the Brey-Krause kit. If that baffle truly works it might be worth it.
The Porsche kit requires some machining. Pretty much an expensive PITA.
Just FYI - I am considering a custom full dry sump setup with a resevoir. Stay tuned. Currently researching.
Chad
The Porsche kit requires some machining. Pretty much an expensive PITA.
Just FYI - I am considering a custom full dry sump setup with a resevoir. Stay tuned. Currently researching.
Chad
#12
Pro
Waittasec, JimB, if you're running an X51 then you've got the Motorsports oiling kit, correct? I think it's part of the X51 package.
My dealer quoted me on the order of $1500 for the oiling update. I'm one of those who can see his oil pressure drop on hard right-handers, on street tires. I also may be one of the few who is crazy enough to be watching the gauges, rather than the road, while going around a hard right hander
My dealer quoted me on the order of $1500 for the oiling update. I'm one of those who can see his oil pressure drop on hard right-handers, on street tires. I also may be one of the few who is crazy enough to be watching the gauges, rather than the road, while going around a hard right hander
#13
Nordschleife Master
Stiles, I don't believe there is an oiling update for your '03 coupe. The 3.6L reportedly had the oil startvation issues resolved, and that's why there is no oil starvation kit for it. There is, however, the X51 kit for a lot more money. That should make those right handers a lot more fun and force you to keep your eyes on the road rather the gauges .
#14
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I ran my '99 996 on average of 10-12 times a year for 6 years at DE's and I never had oil issues with the car. No white smoke coming out after car sitting after a hard run. You shouldn't need to worry but to each their own. Regards. Mike
#15
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Originally Posted by Palting
Stiles, I don't believe there is an oiling update for your '03 coupe. The 3.6L reportedly had the oil startvation issues resolved, and that's why there is no oil starvation kit for it. There is, however, the X51 kit for a lot more money. That should make those right handers a lot more fun and force you to keep your eyes on the road rather the gauges .