Quote:
Originally Posted by fe1rx
I should have clarified, oil system is stock. Using Mobil 1 0W40. No baffles or accusump.
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What's your summation of the data?
What initially drove me down this road were ENGINE BUILDERS pointing out the oil sump design vs my usage of the vehicle. Working backwards from there and seeing that hot oil will slosh as much as 60* up the oil pan given 1.3g of lateral load... it then just became a matter of finding some data to support the idea better. Saw oil pressure as low as ~20psi in autocross at 1.4-1.5g... You present the data so well and digestible. I can see it in my own logs and can vision laying things out as you have, but, to do what you do with your posts is something I just don't have the skillset or equipment to do. Thank you again for a great post and providing some harder data to analyze!
Another thing to consider is the actual oil level in the sump. 7qts seems like a lot until you watch a video like this:
They intentionally under-fill the sump to illustrate the point, but, it still stands that several qts of oil will be constantly flung up into the cylinder head... especially at 6,000rpm. I imagine the sump level would be at it's lowest as you blast down the straight at high rpm for extended time and then enter turn 1 which at most tracks is a heavily loaded brake and transition.