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Oiling system upgrades/changes for road racing

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The problem that occurs in 4G63Ts - including Evos - is that the oil stays in the head and doesn't drain down; on top of that, instead of the oil draining back into the pan, the oil climbs the wall of the block and just stays there. Given the second issue, I can see that excessive roll would encourage that even without race tyre levels of grip - just how extreme is the roll ? From guys who raced 1Gs, the opinion is that the 1G pan/pickup setup is inferior to the 2G/Evo - but that's heresay, I've only run one 1G motor (7 bolt) and promptly starved it immediately ! But I was already starving 2G motors every few events at that time, so as a data point it's little help.

The cure in autocross is to use the biggest AccuSump available and overfill the oil. This works for a/x because the car's never holds a turn longer than a few seconds, and then we swap direction and a lot of the oil gets back to the pan during that transition - but if you try hitting a skid pad you'll still starve the motor of oil, even with all the above mods. 17 seconds turning left could never happen in my car - it would be spitting bearings out no later that 10 seconds into it.

Autocrossers don't run the Moroso pan because it offers no more protection than the AccuSump, and locates all the extra weight on the front of the car, whereas with an AcuSump we can locate the extra weight of the oil and reservoir anywhere helpful, RR corner in my case. With your situation, my reaction would be to run both setups, but also to work on improving drainage back to the pan, if that's possible. Last century's methods of enlarging/improving drainage from the head, polishing the inner block walls and painting them with Glyptal may help with this, though if it's extreme roll-induced, maybe not so much. I might have some other ideas, but nothing's popping right now.
 
How much roll? Watch the video :) Though, it is difficult to judge from there. Even as a driver, it doesn't feel all that bad, but... as a passenger (during AutoX, I can't have passengers on the oval track), you feel like the car will overturn at every turn. I am not sure how to quantify this.

I have been using 2G oil pickup on most of my engines, for the same reason you mention: everyone seems to think that they are better.

EVO's would have much easier time at this track because their engine is flipped around :).
 
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I missed the video link - apologies. Now that I've watched it, the roll doesn't look that aweful, not least because it's on a banked track. Back in the day when Fedja ran at Seekonk he was almost certainly running Kumho VictoRacers - my current street tyres have more grip than VictoRacers had, so if you are running the latest generation of sticky street tyres (which iirc you are ?) it's possible that's what has pushed you over the edge. Either way, from watching that video I don't think either option on its own will protect you adequately, you should run both the Moroso pan and an AccuSump.

The problem isn't the oil pickup being sub-optimal, the problem is that the oil never makes it back into the pan - no amount of fiddling with the pickup will help since there's no oil for it to actually pick up, that's the root problem. You need to get the oil back into the pan to solve this problem.
 
Do you guys think a crank scraper would help keep some of the oil down in the pan? I've also thought about some sort of an external scavange pump to suck the oil of the head, but never figured out a good way to do it.

I've been experiencing a related issue with my car. I've been driving it to work which is about 50mi of straight interstate, and I run about 80-85 on it. After 30mi or so it very slowly drops some oil pressure. It's a brand new engine It normally runs very close to the last mark on the guage, and when it drops, it comes almost to the oil can, and it takes 20mi to do this. The last engine did it to, and I've never seen any signs of oil starvation in the engine. If I cruise at 70, it doesn't move.

Right now I have the kiggly HLA, and covered the front half of the pickup.

I'm assuming the oils getting all wrapped up in the crank and its starving the pickup some.
 
I just completed my first 9 hour endurance race with my 1g.

Oiling system was great... other than the POS Spectra oil pan I had on there. Damn thing cracked at the baffle spot weld and started leaking externally. Piece of junk, stay away if you can.

Issue is that OEM 6 bolt oil pans are discontinued... so now I'm off to find the unicorn stock used oil pan without huge dents in it :(
 
The one good thing there is that the pan Moroso produces for the 4G63 is for the 6 bolt only, so at least if your rules allow it, you can run that
 
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