| We were typically in gear in corners in the "before" data. In the long, zero-oil-pressure turn, we usually aimed for maintenance throttle until we straightened out and got some pressure back. The car is a VH45 swap with 275/18 Bridgestone RE71R all around. The pan is a rear-sump pan fabbed from the original front-sump pan; as built, it only holds about 5 quarts. I think there are two main contributors to our oiling problem:
1. oil pan capacity is too small to keep pickup submerged in max-lat (1+ g) corners
2. oil doesn't drain to pan in max-lat corners due to 90-degree design We treated contributor #1 in the past by adding a bunch of oil; we were running 8 or 9 quarts in the "before" data. However, I think contributor #2 causes the engine to quickly exhaust the pan supply in long turns. The real solution is to build a better pan or go dry sump. We haven't had time for those projects, so we installed the 3-quart Accusump as a bandaid and now it's an 11-quart system. With no valve I must have oil halfway up the crank when the engine's off. Not awesome, but keeps the motor together. As for relevance to a VG30DE/TT engine, the starvation problem really came on after the swap. I don't remember having starvation issues when we were running the VG30DE and the car was pulling about the same lateral, though we did typically run an extra quart of oil. I'll have to dig up some old data to confirm. If we'd had starvation with the VG30, I'm confident the Accusump would have helped based on what I've seen with our current setup.
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