turbogrill Posted November 30, 2017 Share Posted November 30, 2017 Hi, Is oil starvation an issue with track prepped L28? On other non L-engines it's common when running slicks and good suspension. It seems like some people make special oil pans but a lot of people race just fine without it. Is it only a problem at long long sweepers when running slicks? I have never seen an issue on our race car but we have 180 threadwear tires Quote Link to comment Share on other sites More sharing options...
beermanpete Posted December 4, 2017 Share Posted December 4, 2017 Yes, the oil moves away from the pick-up when cornering. We have managed to get by with an extra half-quart of of so of oil beyond the full line on the dip stick. Quote Link to comment Share on other sites More sharing options...
turbogrill Posted December 4, 2017 Author Share Posted December 4, 2017 10 hours ago, beermanpete said: Yes, the oil moves away from the pick-up when cornering. We have managed to get by with an extra half-quart of of so of oil beyond the full line on the dip stick. What kind of tires are you running? Quote Link to comment Share on other sites More sharing options...
Chickenman Posted December 7, 2017 Share Posted December 7, 2017 I ran an Aviad 7 qt Road Racing pan on our D - Production 240Z back in the 70's. We ran on Goodyear slicks and never had an issue. Running oil level higher can be tricky. The last thing you want the oil to do is contact the crank throws. That causes oil foaming which is very bad.. Air is a surprisingly bad lubricant. I've also run an Autocross Z on Goodyear Cantilever slicks with the stock oil pan. It was OK, but Autocross has short G-Loadings and no elevation changes. Road Racing with long sweeping turns, Positive and negative banking and elevation changes are a lot more challenging. Only thing more challenging for Wet Sumps is Hillclimbs. The steep inclines push all of the oil to the back of the pan. It's a really problem if you have a front sump oil pan. I think I would talk to someone like Canton on building a Custom Road Race pan. Canton oil sumps are very, very good. You send them your core and they add on the winged pans, dog door baffling and a proper windage tray. You should run a windage tray on any oil pan. I have an Arizona Z car aluminium sump on my DD. It's not bad and would be OK for Autocross and the occasional Track Days. But I'm not sure how much I would trust it during an Enduro. Particularly if you run slicks. Quote Link to comment Share on other sites More sharing options...
turbogrill Posted December 7, 2017 Author Share Posted December 7, 2017 We run 180 thread tire (Venus rs4), sticky street tires. So I think that might save us, I have logged the oil pressure and it was never low. However I didn't log it at COTA they have some sweepers. Quote Link to comment Share on other sites More sharing options...
Chickenman Posted December 8, 2017 Share Posted December 8, 2017 Logging OP is a very good idea. We used to rely on a Hobb's switch set to 15 or 20 psi and big red light. That's not a bad Idea as well. Soft race slicks definitely create more grip than " DOT " R compound tires. Gotta love the grip of soft compound Goodyear cantilers . On a light car, you could often lift both inside wheels on a hard transition. I don't remember any of the other D-Production cars having amy oiling issues with the stock oil pan. But again it was a long time ago and it depends on the track. Quote Link to comment Share on other sites More sharing options...
inline6 Posted December 10, 2017 Share Posted December 10, 2017 (edited) I ruined a race prepped motor at Road Atlanta (first track event for the engine) because a rod bearing and rod let go. I was running a Nissan Comp pan with something like 8 qt capacity. Member Clarkspeed posted that he has seen oil pressure drop at that track in my thread. Here is the relevant post from that thread. I am looking into having Moroso make a custom dry sump pan. Canton wasn't willing to make one. Edited December 10, 2017 by inline6 Quote Link to comment Share on other sites More sharing options...
beermanpete Posted December 20, 2017 Share Posted December 20, 2017 On 12/4/2017 at 9:37 AM, turbogrill said: What kind of tires are you running? Sorry for the late reply. We first noticed the oil pressure drop when we started using the Falken Azenus RT615K which has a tread wear rating of 200. With "regular" tires we never noticed a problem. With any of the the Comp-R tires the problem is more severe. Quote Link to comment Share on other sites More sharing options...
turbogrill Posted December 21, 2017 Author Share Posted December 21, 2017 (edited) On 12/19/2017 at 7:07 PM, beermanpete said: Sorry for the late reply. We first noticed the oil pressure drop when we started using the Falken Azenus RT615K which has a tread wear rating of 200. With "regular" tires we never noticed a problem. With any of the the Comp-R tires the problem is more severe. Hmmm...we run similar tires like that (RS4). Maybe I should log the oil pressure doing going around in a circle like I am crazy. I wonder if a hydramat works with oil...that would be awesome.....it doesn't. Edited December 21, 2017 by turbogrill Quote Link to comment Share on other sites More sharing options...
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