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Thinking of taking my 996 for it's first DE event...

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Old 01-01-2013, 02:55 PM
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KC-944 Turbo
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Default Thinking of taking my 996 for it's first DE event...

I have a 951 with some VERY fun DE days on it. I just picked up a 996 and would like to take it to a track day.

Several times in this forum I have see 'it happened to me' threads. Someone goes to a track day and has engine problems soon there after. If memory serves me, the thread I am thinking of diagnosed the problem as oil starvation of the engine.

The track will be the new Kansas Speedway, high banks that the NASCAR guys run flat out on. I'm betting it will cause some serious G's on the long way around the banks.

Is there anything special I can do to prevent oil starvation, if indeed that is the problem?

THX!
Old 01-01-2013, 03:00 PM
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savowood
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A good start is getting the X51 oil pan. However, on a high bank, I don't think it'll be enough. You should consider an Accusump, but only if you want to track the car a lot. Otherwise, just keep the revs low and use a higher gear while on the banking.
Old 01-01-2013, 03:23 PM
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ivangene
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how about running street tires or just throttle back a bit on the bank - that's a cheap solution and after all - it's a DE...not a race

just a thought, I have not seen any issues locally but we dont have high speed banks

have seen a number of cars cough and smoke because they had too much oil in them..the old thought of "make sure and top it off before my track day" seems to get more people in trouble than I would have thought
Old 01-01-2013, 04:01 PM
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LC MotorSports
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Originally Posted by ivangene
how about running street tires or just throttle back a bit on the bank - that's a cheap solution and after all - it's a DE...not a race

just a thought, I have not seen any issues locally but we dont have high speed banks

have seen a number of cars cough and smoke because they had too much oil in them..the old thought of "make sure and top it off before my track day" seems to get more people in trouble than I would have thought
+1
Old 01-01-2013, 05:54 PM
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dotframe
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I have seen a lot of people say that as long as you are on street tires you can't pull enough lateral Gs to cause starvation. Don't know if the banking really changes that.
Old 01-01-2013, 07:59 PM
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Doug Donsbach
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Originally Posted by dotframe
I have seen a lot of people say that as long as you are on street tires you can't pull enough lateral Gs to cause starvation. Don't know if the banking really changes that.
Don't believe that.

I saw oil pressure fluctuation in T7 (110 degree right hander, flat) at Road Atlanta on pretty lousy street tires (Sumitomo HTR ZIII). However, I was almost as fast through there in the 996 as I am in my 944 turbo racer on R compounds, for whatever that's worth.
Old 01-02-2013, 06:35 PM
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perryinva
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Wouldn't banked give you LESS starvation than flat? I mean, you are physically putting the engine at the same plane as where you are forcing the oil, right? X51 "sump kit" is a waste without the rest of the X51 package. It will not help starvation much, if at all.
Old 01-02-2013, 06:43 PM
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PJorgen
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Originally Posted by perryinva
Wouldn't banked give you LESS starvation than flat? I mean, you are physically putting the engine at the same plane as where you are forcing the oil, right? X51 "sump kit" is a waste without the rest of the X51 package. It will not help starvation much, if at all.
Exactly what I was thinking. In a highly banked turn the force vector generated by inertia remains the same, but the angle of the car relative to the horizontal is changed. So relative to the angle of the car, the force vector is less.
Old 01-02-2013, 08:35 PM
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garrett376
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Just make sure you have sufficient oil to start with and drive it! So many worriers, makes me wonder why anyone buys a 996... you're more likely to kill your engine missing a shift, or spinning out and hitting a wall butt-first than you are to starve the engine of oil.
Old 01-02-2013, 08:39 PM
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garrett376
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Originally Posted by Doug Donsbach
Don't believe that.

I saw oil pressure fluctuation in T7 (110 degree right hander, flat) at Road Atlanta on pretty lousy street tires (Sumitomo HTR ZIII). However, I was almost as fast through there in the 996 as I am in my 944 turbo racer on R compounds, for whatever that's worth.
I can get oil pressure fluctuation driving 25mph on the street taking a corner... with regular or factory x51 engines. Fluctuation is not "starvation"...
Old 01-02-2013, 09:48 PM
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KC-944 Turbo
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Thanks for everyones feedback. Here is the track if someone is interested.

Slow turn buy turn...

At speed...
Old 01-02-2013, 10:39 PM
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KrazyK
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Your future=
Attachment 692180


Last edited by KrazyK; 11-20-2014 at 06:25 PM.
Old 01-02-2013, 11:13 PM
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Sneaky Pete
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^^^Look who just got out of jail.......probation will be short lived
Old 01-02-2013, 11:18 PM
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ivangene
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awe boi - pass the popcorn

Old 01-02-2013, 11:23 PM
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ivangene
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