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This is a 3900 oil pump modified to have the intake on the bottom and the by pass valve external. This allowed me to build a shallow pan for my track roadster. The pan is approx 17" long X 12" wide X 5 1/2" deep and oil is 1 3/4" deep in the pan, giving me about 7 quart capacity. It will have trap doors for oil slosh control as well as a crank scraper and windage tray.
Last edited by 23TrackroadsterV6; 01-09-2013, 01:45 AM.Comment
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Seems like you got quite the plan. You said something about having a some sort of internal pump that acted like a dry-sump. Got any pics? I've never heard of anything like that.Took a break from working on the car. Got some better tools, got a better shop, got a better job... Its time to burn metal!Comment
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The Barnes small block chevrolet internal dry sump pump that several sprint car engine builders used in the late 70's and thru the80's was pretty much a pump with two sets of gears, with one set stacked on on top of the other seperated by a plate. These gears were driven of the cam/magneto by a hex shaft. The lower set of gears scavenged oil out of the pan and sent it through a -12 fitting out the side of the pan to a remote mounted tank, the other set of gears pulled oil from this remote tank and returned it to the oil galleys in the engine.
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