Calculating oil pump requirements

Ed Wright · 02-20-2014, 02:53 PM

It would be slick if you could run a factory pump at a constant speed with n electric motor to measure how long it takes to pump a quart, or whatever. Do they rate them in gallon an hour, like a fuel pump? (I'm thinking not) Then do the same with your dry sump pump. Might be a trick to get an electric motor to run at a constant RPM with both pumps. May be easier to do it off a gasoline engine. It would be interesting to know if shortening the housing and impeller 10% would get a 10% drop in volume pumped.

During the 1980s I ran an "outlaw" sprint car on dirt, (didn't drive it, you can hire crazy people for that) with a Peterson dry sump set up. I felt like it was way more pump than I needed. Never did play with that, making enough power was never an issue. Always wondered about that pump. I'm sure it was over-kill in size to cover their tails.

02-20-2014, 02:53 PM	#10
Ed Wright Veteran Member Join Date: Mar 2005 Location: Sand Springs, OK Posts: 8,132 Likes: 896 Liked 390 Times in 170 Posts	Re: Calculating oil pump requirements It would be slick if you could run a factory pump at a constant speed with n electric motor to measure how long it takes to pump a quart, or whatever. Do they rate them in gallon an hour, like a fuel pump? (I'm thinking not) Then do the same with your dry sump pump. Might be a trick to get an electric motor to run at a constant RPM with both pumps. May be easier to do it off a gasoline engine. It would be interesting to know if shortening the housing and impeller 10% would get a 10% drop in volume pumped. During the 1980s I ran an "outlaw" sprint car on dirt, (didn't drive it, you can hire crazy people for that) with a Peterson dry sump set up. I felt like it was way more pump than I needed. Never did play with that, making enough power was never an issue. Always wondered about that pump. I'm sure it was over-kill in size to cover their tails. __________________ Ed Wright 4156 SS/JA