mayf;
I think James was refering to a scavange pump.
Regards, Neil Tucson, AZ
-----Original Message-----
From: DrMayf [mailto:drmayf@teknett.com]
Sent: Tuesday, January 28, 2003 9:12 AM
To: James Tone; Glenn Ridlen; Elon; LSR-List
Subject: Re: Dry Sump stuff
Forgive me James, jut using you memo as entry to this thread.
How is it that the oil pump works harder when the crank case is under
vacuum? If you think that it is because th eoil in th epan is at less than
atmospheric pressure, you are correct. BUT, so is the Outlet! Trace the oil
path all the way from pan to dripping out a bearing and both ends of th
eoil path are at the same vacuum level. the delta P is the same whether or
not you run a sump with or without a vacuum system. IMHO. Try working though
the path yourself. The internals of the engine are closed when doing this.
mayf
----- Original Message -----
From: "James Tone" <gmc6power@earthlink.net>
To: "Glenn Ridlen" <gridlen@yahoo.com>; "Elon" <netstuff@attbi.com>;
"LSR-List" <land-speed@autox.team.net>
Sent: Monday, January 27, 2003 4:51 PM
Subject: Re: Dry Sump stuff
> The more internal vacuum, the harder it is for the oil pump, no matter
what
> kind.
>
> > I cought that too.....Maybe he meant sucked up.
> > More (crankcase) vacuum means more HP, till you get to an amount that
you
> > start pulling oil past the valves.
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