Quote:
Originally Posted by mike the snake
I'm aware of accusump.
I was thinking of making a "poor man's dry sump" and trying to solve the oiling issues Element Tuning is having without spending thousands on a real dry sump system.
A redundant, dual pump (stock pump AND cam driven aux pump) with separate pickups in the pan, and maybe a small sump on the aux pump, might just give the extra pressure and volume needed at high G, high RPM loads, and offer extra protection in case one of the pickups loses suction at high G's.
The aux pump could even be plumbed in at a different spot, maybe where it's most needed, otherwise it could be plumbed in at the sandwich plate maybe.
An in-line, one-way check valve on the aux pump would ensure one pump would always be working, and a small sump on the aux pump would ensure no pressure loss even when both pumps lost suction at the pickups in the pan at high side G's.
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Mike, We have actually thought of running an external oil pump as they are used on race engines. The pump needs to be much bigger than you think as there is a ton of volume needed. The OEM pump is actually very large and high volume but at the same time Subaru decided to feed the heads simultaneously increasing the volume demands.
The issue that needs to be overcome when trying to add a supplemental oil pump is how to keep it from working against the oem pump.
An external pump can replace the oem pump entirely.