Dry Sumps...

kiwicar · Post by **kiwicar** » Mon May 09, 2011 9:15 am

Hi
If you are going to the effort of dry sumping a rover then I would think 4 stages on the pump is a minimum, two to the sump (one at either end), one to the valley and one pressure. However you could do 3 stage and only have one in the sump.
Best regards
Mike

kiwicar · Post by **kiwicar** » Mon May 09, 2011 9:23 am

Hi
If you are going to the effort of dry sumping a rover then I would think 4 stages on the pump is a minimum, two to the sump (one at either end), one to the valley and one pressure. However you could do 3 stage and only have one in the sump.
Best regards
Mike

teamidris · Post by **teamidris** » Sat Dec 31, 2011 10:31 am

I've been building one for offroad, as we can be nose down for minutes at a time, which smokes up the front plugs.
So far its only been run up in the garage, so no real world testing yet. But there are some advantages for us. It's a 3.5, so we now have a decent oil pressure, we should suck air free oil up to 60 degree vehicle angle and bleeding was very easy. Disadvantages include; cost, the extra pipework for leaks to form and having room for a tank. Oddest drawback has been the high tank position, which makes it easier for the pump to leak into the sump. I've fitted a hand pump to shove it back into the tank. We also required a pump that had its own lube points so it wouldn't run dry. Dave Lazenby fixed us up there with a ported 3 stage

As it is a large cost and a lot of work I'm not sure I havn't gone mad fitting it? But I should keep my tappits & plugs happy.

Construction is a little on the industrial side as the vehicle has a front mounted hydraulic pump. Its also V belt scavenge pump drive as I didn't fancy my chances of getting muddy sticks through a toothed belt

I wonder about 5 stage to give a sump suction point at each corner, but so far it's complicated enough for me to fabricate with 2.