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Re: [GMCnet] High volume oil pumps [message #246188 is a reply to message #246120] Wed, 02 April 2014 15:13 Go to previous messageGo to previous message
mikethebike is currently offline  mikethebike   United States
Messages: 331
Registered: January 2014
Karma:
Senior Member
You and I know that. Some will ignore that fact and run them anyway.

I ran 8500 rpm BOSS-302's, another 8500 BOSS-302 destroked to 289 with a 5.4" T/A Rod....to attain the proper 1.9/1 rod-length-to-stroke ratio...well actually 1.8815 was what I got...305 Gurney-Weslake engines and 7500 rpm 427 Chevrolets and didn't need 'high volume' oil pumps.

I don't think I need one on the 4500 rpm 455.

Jeff Marten wrote on Tue, 01 April 2014 22:18

Where does the oil spray originate? Are you inferring filling the pan with an excess volume of oil, and thereby using the crank to splash oil around??? (terrible idea if so) Or installing spray nozzles so the extra volume of oil pumped is utilized?
A high volume oil pump does nothing but bypass more oil than a standard pump if the bearing clearances aren't set to utilize the extra volume of oil. Clearances at X" will only flow X volume of oil, nothing more; the additional pump volume will just be bypassed.

> From: yenko108@hotmail.com
> To: gmclist@temp.gmcnet.org
> Date: Tue, 1 Apr 2014 21:40:51 -0500
> Subject: [GMCnet] High volume oil pumps
>
> I think Rob M brought up that Dick Paterson uses the high volume oil pump. I respect Dick's thoughts, and ideas. So today I called him on his ideas on that topic. We had a VERY informative talk. We're going to talk tomorrow some more on that topic. Short version for now on his thoughts. He likes the idea of the extra oil as a way of cooling the bottoms of the pistons. That would help to remove heat by the way of the oil spray. Oil spray does remove heat. Today I did more listening. He's a library of GM info. Next I want to explain my theory. Bob Dunahugh GMCMI member
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