[mike leech]

Originally Posted by Tom Vaught

Mike, did you eventually go with a dry sump system like John M or are you still using a Luhn Oil Pump? The reason I ask is there is a lot more oil volume with the dry sump so it takes a bit longer to raise the entire volume of the oil (that you might read on a oil temp gage in the pan or gallery) but the bearing oil temp is still the same. Very HOT!

Tom V.

My questions will be based on the engine's ability to live at 1200+ hp and 9000 rpm and your solutions. Thanks Very Much, Mike!

Mark Luhn makes an awesome pump. I eventually switched very recently in fact to a dry sump. I went with a six stage so we could scavenge oil from all over the motor. The reason I switched was not due to the pump. But more the oil pan and oil control. Due to inertia and the amount of oil we wanted for cooling the valve springs. We just couldn't control the oil and make sure it all got back to the pan before the run was over. i'm pretty sure we were pumping the valve covers full. There's a lot of heat that comes from valve springs.

With the dry sump we have more oil on hand and we are actually sucking it out of the motor especially the valve cover and lifter valley areas. This also allows us to pull more vacuum safely. My initial run with the dry sump we had oil pressure at 100 pounds. Everything looks great other then cylinder with water in it but we had to fix. So now we will turn the oil pressure down to a more sane 65 pounds.

Think of it like this if you were to launch a car with a 1.16 60 foot and you had a passenger with an oil pan in his lap, 7 quarts of oil in the pan where do you think all of oil would be by the 60 foot Mark? It would be everywhere. Same thing happens in the car. That is why I switched to a dry sump. And the ability to scavenge oil for the valve covers.we also stage the car with 9 quarts of oil instead of seven.