High volume is relative.
My rebuilt 71 runs 75 cold and 20 hot.
High volume is relative.
At 7,500 RPM 20 PSI is still a positive.
What do you need ?
A reading of any kind is usually taken from right off the pump below the
dizzy.
20 PSI @ 10,000 RPM or 20 PSI @ 7,500 RPM
Same thing
More PSI doesn't equate to squat
There is a foaming quotient at high RPM, but I don't think ANY Triumph has
to worry about that !
-----Original Message-----
From: Max Brewster [mailto:brewsjl@hotmail.com]
Sent: Tuesday, January 09, 2001 10:49 PM
To: sos@kymtnnet.org; spitfires@autox.team.net
Subject: Re: High Volume Oil Pump
Larry, I rebuilt my 79 1500 last spring with a stock pump. 75 psi cold, 45
psi hot at speed, and 20 psi at idle when hot. This is plenty of oil
pressure. Be careful with too high a psi you could blow out oil filters
unless you can get high pressure one. I don't know if they are available for
the 1500. You can also stress the oil pump drive shaft,
although the 1500 shaft is pretty hefty. If you go with a high volume pump,
let your engine warm up for a while before getting on it. I ran across the
filter problem on my 68 Mustang with a high volume pump. It pegged my 100
psi oil pressure gage when cold and I did blow out a stock filter. It came
apart at the seams!! The high pressure filter fixed this problem.
Good Luck,
Max Brewster
79 Spitfire 1500
>From: Larry Elswick <sos@kymtnnet.org>
>Reply-To: Larry Elswick <sos@kymtnnet.org>
>To: Spitfires mailing list <spitfires@autox.team.net>
>Subject: High Volume Oil Pump
>Date: Mon, 08 Jan 2001 14:43:47 -0500
>
>I'm just about ready to start re-assembly of
>my 1500 engine. I was told a high volume oil
>pump isn't really necessary. I had the center
>oil gallery drilled out to 5/16" . How about
>some opinions. Thanks!
>Larry
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