Date: Mon, 15 Jul 2002 09:21:19 -0500
Reply-To: Stan Wilder <wilden1@JUNO.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Stan Wilder <wilden1@JUNO.COM>
Subject: Re: 85 octane in Colorado and 'windage trays'
Content-Type: text/plain; charset=us-ascii
A windage tray keeps your oil down in the pan where it belongs.
If you've ever used a paint mixer on an electric drill or a foods mixer
you know when you pull it out of the mix with the mixer still spinning it
has a fan effect that throws paint out all over the place, your engine
has the fan effect.
That is exactly what your rod bearings and main bearings are doing
anytime your engine is running. The oil that comes out from the sides of
your bearings is creating a fan, this fan disturbs the oil in your pan by
the slinging action and causes foaming. Since the Air Cooled VW engines
have a wide pan area like a cookie sheet the disturbance and foaming is
considerable at higher RPMs.
The higher viscosity oils 20/50 (example) tend to have more of a lasting
fan effect than the thinner 10/30 oils.
The windage tray is not a fix all for lowering engine temperatures but
I've heard that it can give you as much as 5 to 10 more horse power (not
proven).
Consider that a Porsche type 4 will turn 5800 Rpms, that is pretty high
rpms if you engine oil is sloshing into your pistons at that high Rpm.
The engine could possibly have so much airborne oil that your pan runs
dry.
Go to http://williamwareagency.com/forsale/stanvan/0003.htm
The discussions on windage trays is here.
Stan
On Mon, 15 Jul 2002 13:39:05 +0100 Clive Smith
<clive.harman-smith@NTLWORLD.COM> writes:
> Stan (or anyone),
>
> What in the blue blazes is a 'Windage Tray' ???
>
> Clive Smith
> '88 Syncro Transporter
>
> ----- Original Message -----
> From: "Stan Wilder" <wilden1@JUNO.COM>
> To: <vanagon@GERRY.VANAGON.COM>
> Sent: Friday, July 12, 2002 1:29 PM
> Subject: Re: 85 octane in Colorado
>
>
> > The archives are full of discussion on fuel octane vs
> performance.
> > I will accept correction on any statement I make below.
> > All fuels of all grades are blended for the specific environment
> that
> > they are delivered to.
> > Fuels sold in major smog prone cities have additives that are not
> blended
> > into fuels sold forty miles from the big cities.
> > These *country fuels* will produce more power and better overall
> > performance than the *city blends*.
> > I've also experienced better fuel economy running the *country
> fuels*.
> > In addition I've heard a wide variety of reasons that vehicles
> perform
> > poorly at high altitudes (in addition to lower compression). Some
> of
> > these are:
> > Partially clogged Catalytic Converters, Ignition degraded from
> long term
> > use, Spark coils partially failing at high Rpms, Poorly adjusted
> AFMs,
> > Improper Timing, Clogged Injectors, Poorly adjusted valves and
> failing
> > fuel pumps and pressure regulators.
> > If you have a high mileage engine it can be the sole reason for
> poor
> > performance.
> > This link will take you to an altitude vs compression chart.
> > http://williamwareagency.com/forsale/stanvan/altitude.htm
> > In recent discussions on windage trays it has been speculated that
> a
> > properly built and installed windage tray can give you 5 to 10
> additional
> > horsepower and lower engine temperatures (another subject for
> later
> > discussions)
> >
> > Stan Wilder
> >
> >
> > On Thu, 11 Jul 2002 23:53:48 -0400 Kim Brennan
> <KimBrennan@AOL.COM>
> > writes:
> > > In a message dated Thu, 11 Jul 2002 11:52:22 AM Eastern Standard
> > > Time, "Richard A. Jones" <Jones@colorado.edu> writes:
> > >
> > > >I'm enjoying the story of your trip, but our gas in Colorado
> isn't
> > > >garbage. The
> > > >octane is reduced because of the altitude, since the oxygen is
> > > reduced.
> > > >I won't
> > > >comment on our level of civilization. ;-)
> > >
> > > So many have said...but for a transient (such as myself) who is
> > > intending to be at low altitude within a tankful....
> > >
> > > Ah well. Another updated in a moment.
> > >
> >
> > ________________________________________________________________
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> >
>
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