auricomXL

sorry if this has been discussed I tried to search...

i won't get into the details of "why", but it would benefit me very well to have a dry sump set up on my 13b, but i'd rather not spend $3,000 on the mazdaspeed kit.

i saw a few 12V low pressure oil scavange pumps on ebay for around $300 the other night (they pump about 70 gal/h at 20psi). i have the means of fabricating my own "dry sump pan". i was wondering if anyone has had any experience with using an electric suction pump like this:

i would run an electric pump just to suck the oil from the very small new pan i will make. then send this oil at a low pressure to the remote oil tank, probably mounted in front of the motor, slightly above the stock oil pan line. then i will modify the stock suction nozzle so that it pulls oil from the oil tank directly. then the stock oil pump will plumb the engine oil to the motor as per usual, the oil eventually draining back into the flat "pan". the cycle then repeats.

anyone tried this? are the electric pumps too shitty to work in this application? what would happen if the electric pump failed and oil started backing up into the block (would i have milliseconds, or seconds to take corrective action)?

any general info on this topic would be most appreciated.
thanks,
Max

auricomXL

i didn't realize that 70gal/hr is not nearly enough flow rate. the new plan is to use the oil pump assembly from one of your past turbocharger turbojet engines as a scavenge pump. we have a beefy 12V motor that has a drill chuck attached to it. this will power a generic shaft driven wet sump pump. we have since made the pump oil-tight (so it does not have to be sumbersed anymore). for our turbojet, we had to bleed off LOTS of oil, and the pump is designed for a 5.0 mustang, so i am betting it will be more than enough flow to scavenge all the oil out of the pan and send it to the tank.

once that is set up, i will modify the oil suction tube that normally sticks out of the bottom of the front iron housing, and rout it so that it picks up from the new oil tank. i don't see any inherant reason this would not work.

THE QUESTION:
anybody know how many spots the oil comes out of the bottom of the 13b? as in, if you were to run the engine without the oil pan on (but with the pick up tube still getting oil somehow) how many locations on the bottom of the block would have oil spewing out? i think there are only 2 major locations where this occurs? if so, i would only need 2 scavenge ports right below these areas for the scavenge pump to suck out.

any thoughts?