1958 371 Oil Pump
March 25th, 2023, 10:58 AM
#1
Registered User
Thread Starter
Join Date: Nov 2011
Location: May Township, MN
Posts: 84
1958 371 Oil Pump
As part of the rebuild of the 371, I decided to tear down the oil pump. I thought I would investigate what displacement it was.
After some calculations I came up with 2 cubic inch per revolution. If we assume an idle speed of 750 RPM then since the distributor turns half the speed of the engine, a 2 cubic inch gear pump will produce 750 cubic inches per minute. Since there are 231 cubic inches per gallon that amounts to a flow of over 3 GPM. That also means that the pump would be producing a flow of over 20 GPM at 5000 RPM.
Now you know more about the oil pump and flow through the engine you probably wanted to.
After some calculations I came up with 2 cubic inch per revolution. If we assume an idle speed of 750 RPM then since the distributor turns half the speed of the engine, a 2 cubic inch gear pump will produce 750 cubic inches per minute. Since there are 231 cubic inches per gallon that amounts to a flow of over 3 GPM. That also means that the pump would be producing a flow of over 20 GPM at 5000 RPM.
Now you know more about the oil pump and flow through the engine you probably wanted to.
Thread
Thread Starter
Forum
Replies
Last Post
