[benspeeder]

Hi - I'm curious if anybody racing a 968 uses:



Accusump

Crank scraper

Windage tray



Anybody know that the 3.0 motor is vulnerable to oil starvation without these products or if they saw any improvement on the dyno?



Thanks,



Ben

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[flash]

call pete - he has played with all of them

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[benspeeder]

[quote name='flash' post='64524' date='Dec 22 2008, 11:30 AM']call pete - he has played with all of them[/quote]



Spoke to Pete - let him know that all roads lead to RS Barn :-)

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[94SilverCab]

We think so too <img src="/forum/images/smilies/968/laugh.gif" class="smilie" alt="" />

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[Anchorman]

...so, what did he say about these items?

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[968gene]

I'm running a rank scraper and a oil pan"door". Can you run a windage tray and a crank scraper? Replace the rod bearings and use new nuts.

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[Eric_K]

I don't think the engine "requires" any of those but they won't hurt. I've been racing on the stock, original engine for the last 5 years without a single problem from the engine and I don't run any of the things listed.

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[Anchorman]

Thanks, Eric, that's helpful. I'm not racing, but I am doing a gradually increasing number of DE events. I've not seen any evidence of oil problems, and now I feel more confident that I shouldn't.

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[PorscheDude]

As Gene said, I would consider having the rod bearings serviced at the minimum, and should be good to go.

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[Anchorman]

I had rod bearings replaced about 15k miles ago, at a little over 150k miles.

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[benspeeder]

OK - update from Pete (which is totally in alignment with the posts above).



You don't need to run the crank scraper, windage tray or accusump to race the car. He did highly recommend doing the rod bearings which I will have RS Barn service.



The crank scraper will help performance by about 2-3hp by shedding the additional oil and weight off the components particularly at high speeds. The windage tray helps make sure oil starvation doesn't occur - as does the accusump.



I figure I'll do the bearings and buy a used accusump off ebay. Used they're about $150 or so including all the hardware. Just good motor insurance. Simple to install - just buy an oil filter sandwich plate, mount the accusump and screw in the oil line to the plate - done.



PS - I was trading some email with a guy DEing a 968 and posted some of his videos on YouTube. He ran a 2:11 at Watkins Glen in a mildly developed 968 - that would CRUSH the lap record which is in the 2:14 range for ITR. Great validation that this is a great car for that class.

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[Anchorman]

I think I have a video that I shot at the Glen that I could use to figure out an approximate lap time - but I know FOR SURE that I'm nowhere's near 2:11. That's a stunningly fast time.

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[garylimey]

When PMR finishes with the suspension on the car, removing rubber bushings and installing what looks to be JRZ coilovers I'll be dreaming <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" /> of a sub 2:10, like I said "dreaming".



I think it would be easier though to get a sub 2:10 at VIR as I felt I was slow through the up hill Esses and South Bend <img src="/forum/images/smilies/968/wink.gif" class="smilie" alt="" />



Will has told me that we should do the rod bearing probably each season depending on amount of track days and especially now that I'm going to be a "rookie" racer starting at the end of March

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[PorscheDude]

Your last video was Awesome!

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[Anchorman]

The only reason I think I could get a better lap time at VIR than I could at Watkins Glen is that I'd be more willing to "push" at VIR - the price for making a mistake is much less. Every time I think of how many places there are at the Glen where a mistake has a major price tag - turn 9 always looms large for this - I can't see myself ever going as hard as I might be able to. What was that show - "Fear Factor"?

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[garylimey]

[quote name='PorscheDude' post='64600' date='Dec 23 2008, 02:38 PM']Your last video was Awesome![/quote]



Thanks <img src="/forum/images/smilies/968/smile.gif" class="smilie" alt="" />

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[garylimey]

[quote name='Anchorman' post='64604' date='Dec 23 2008, 02:57 PM']The only reason I think I could get a better lap time at VIR than I could at Watkins Glen is that I'd be more willing to "push" at VIR - the price for making a mistake is much less. Every time I think of how many places there are at the Glen where a mistake has a major price tag - turn 9 always looms large for this - I can't see myself ever going as hard as I might be able to. What was that show - "Fear Factor"?[/quote]





I've had a lot more days at the Glen so the fear factor is ok but there's more oppertunity at VIR to gain time in the turns.



For example, I was comparing speeds and lap times with my friend in his GT3(on Hoosiers) at the Chin event.

This is a interesting comparison:-



My 986 top speed on the back straight 132mph, best lap 2:11.7

GT3 top speed on back straight 155mph, best lap 2:15.7

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[Anchorman]

That is really interesting, Gary. I guess that reinforces my view that - at least at this stage - I don't need more power, I need more "driver" and I want (and will be getting) more brakes. Then, maybe I'll need more tires.

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[Cloud9...68]

Yes, lap times are dominated by speed through, and out of, the corners, much more than in the straights, especially for novice drivers like us.



Just curious, Anchorman, why do you think more brake will help you? I read an interesting series of articles on DE driving awhile back, and the author made a convincing argument that in a DE, unlike in a door-to-door race where passing often occurs under braking, heavy braking going into turns is actually undesirable, as it upsets the balance of the car unnecessarily. He recommended started braking a little earlier, and more gradually. Personally, I've found that I have a tendency to over-brake, and my speeds have seen the greatest improvement from reducing my braking, and carrying the maximum amount of speed through the turns, so as to maximize exit speed. As Fangio once replied to a reporter's inquiry as to the secret of his success, "Less brake, more gas."



Another question - do you do your DEs on street tires, or racing compounds? I've stayed with street tires so far, but, as a result of the outstanding racing school I'm enrolled in (Driveway Austin), I'm in vastly better control of my car, and my smoothness has improved to the point where I think I can handle the more abrupt breakaway characteristic of racing tires. Just a matter of budget at this point...

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[Anchorman]

Interesting points, Cloud. I may not be braking correctly, but I've had occasions where I had to end DE sessions before the full 30 minutes were up because my brakes had faded. Driving without any reserve braking power is not something I enjoyed, so I've decided to increase my braking power.



Maybe braking earlier but less aggressively is the right technique - but it's nothing that any of my (admittedly amateur) instructors have ever pointed out. The route you're taking - a racing school - is most likely much better than the "enroll in an event, get an instructor, and go for it" route that I'm currently on. But, we do what we can do.



I am on street tires.

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