Date: Wed, 10 May 2000 14:47:03 -0700
Reply-To: Mark Drillock <drillock@EARTHLINK.NET>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Mark Drillock <drillock@EARTHLINK.NET>
Subject: Re: Less than 60 mph??? Really?
Content-Type: text/plain; charset=us-ascii
Is that 185/70 or 205/70 tires? In any case, the speedos are optimistic
so true speed is less. I have no knowledge of the degree of accuracy of
the tachs. It is a simple matter to look at the tranny code, get the
ratios from the Bentley, look up the revs per mile of the tires, and
figure out the true road speed at a given engine speed and vice versa.
Then correct for the speedo by a time/distance/indicated speed test.
Then work back and find out if the tach is accurate.
Mark
Daniel Schmitz wrote:
>
> I agree with Thomas, who, coincidentally, agrees with Bulley.
>
> My '87 Westfalia engine spins around 4000 rpm at an indicated 75 mph. This is
> with 70-series tires (going forward, with tail wind). I just drove from Colorado
> to San Francisco, a trip which is mostly desert, so the tach reading is etched
> into my memory. At 75 mph, the tach needle is just at the high side edge of the
> green "power" range (power being a relative term with Vanagons).
>
> Dan
>
> Thomas Czerniak wrote:
>
> > I agree with Bully. In spite of the obvious higher
> > speed means more wear (negligible considering that
> > the engine is already overstressed),My theory is
> > that if any engine that I run will not go to
> > redline ,something is not correct. By the way ,my
> > van turns 4400 rpm at 80mph. No kidding. It loves
> > it at that point. It sound as if there might be
> > some thing wrong with your van if it is turning
> > 4000 rpm at 60 mph!
> > Tom Czerniak
> > 87 Westy "the Red Brick"
> > Flame suit on! Catch me if you can, I'll be doing
> > 80!
> >
> > Bulley wrote:
> > >
> > > Sad van for you.
> > >
> > > We routinely drive 75-80 mph on trips to and from DC in our 1982 Westy.
> > > Done it in other 1976 buses as well. I take it a little easier if carrying
> > > a load, or if it is blazing hot, but otherwise, the redline on mine is up
> > > around 5000, and everything below that is fair game.
> > >
> > > G. Matthew Bulley
> > > Bulley-Hewlett
> > > Corporate Communications Counselors
> > > www.bulley-hewlett.com
> > > Mount Olive, NC USA
> > > 877.658.1278 tollfree
> > >
> > > "I, the undersigned, shall forfeit all rights, privileges, and licenses
> > > herein and herein contained, et cetera, et cetera . . . fax mentis
> > > incendium gloria culpum, et cetera, et cetera . . . memo bis punitor
> > > delicatum!" It's all there, black and white, clear as crystal! -Wonka
> > >
> > > -----Original Message-----
> > > From: Scott Semyan [SMTP:scottse@MICROSOFT.COM]
> > > Sent: Wednesday, May 10, 2000 1:13 PM
> > > To: vanagon@GERRY.VANAGON.COM
> > > Subject: Re: Here's one to rack your brains
> > >
> > > >> ...doing about 70...
> > >
> > > I assume you mean MPH? If this is the case, I am surprised you didn't blow
> > > the entire engine. My tach would probably be in the Red at 70mph. My
> > > average
> > > speed on the highway is 60mph (at which time I am doing 4K RPM). Driving
> > > too
> > > fast is a sure way to decrease engine life...
> > >
> > > Scott Semyan
> > > '85 Westie
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