A nice Weaver pump is as reliable as they get.
That is why there are copies of them I would think.
But they are good at pumping oil, in or out.
None of the oil pumps are that good at pumping air that is whay they are
called oil pumps.
Moroso and others make very good vaccuum pumps that are good at pumping air.
If you have to pump air with an oil pump i had heard the gear rotor ones
work pretty good at it.
Dave
> -----Original Message-----
> From: owner-land-speed@autox.team.net
> [mailto:owner-land-speed@autox.team.net]On Behalf Of Rick Byrnes
> Sent: Friday, January 28, 2005 9:37 PM
> To: land-speed@autox.team.net
> Subject: Oil pumps
>
>
> I am in need of some advice about oil pumps and dry sump systems. Even
> though my oiling system performed sort of OK at WF, I found the pan
> evacuation to be really lacking and think I need to retire my really old
> spur gear Barnes pump. It found its way to me via my friend Don
> Vesco, and
> had performed for a long time on a midget with an Esslinger motor. I
> rebuilt it once, but find it is in need of some attention.
> So, efficiency of G rotor verses spur gears, anyone with good data? Has
> anyone done comparisons of Barnes Tri lobe vs. go rotor, vs. spur
> gears and
> other manufacturers.
> Having had success with some of Petersons components in the past, I am
> seriously considering their pump. Any comments, suggestions?
> Since the existing N/A motor will eventually be replaced with an updated
> version of my old turbo motor from the Merkur, I am concerned
> about pulling
> as much vacuum on the highly boosted engine. (more flow and boost than
> before). The way it looks now, will be a 5 stage go rotor with
> mechanical
> fuel pump driven off the rear.
> Please, anyone????
>
> Rick Byrnes
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