Date:         Wed, 10 May 2000 15:44:19 -0400
Reply-To:     Bulley <gmbulley@BULLEY-HEWLETT.COM>
Sender:       Vanagon Mailing List <vanagon@gerry.vanagon.com>
From:         Bulley <gmbulley@BULLEY-HEWLETT.COM>
Subject:      Re: Speedo Accuracy Discussion
Comments: To: "robot ." <robot_works@HOTMAIL.COM>

If your highway has mile markers, time your travel between the mile
markers. Interpret your result as the number of seconds, it should be in
the 40-60 second range, dependent on speed. For giggles, lets say it took
you 39 seconds from one mile marker to the next.

Next divide 60 by the result on your stopwatch 39...     60 / 39 = 1.54
Next, multiply this by 60...   1.54 * 60 = 92.4 mph.
Next check your rearview mirror, cause your about to get pulled.

If you have a palm top computer, you could prolly write a wee spreadsheet
program to do the calculation (like an Excel formula) and all you'd have to
do is pop in the number of seconds. Or you have your speedometer
recalibrated for about $65.

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:   robot . [SMTP:robot_works@HOTMAIL.COM]
Sent:   Wednesday, May 10, 2000 3:03 PM
To:     vanagon@GERRY.VANAGON.COM
Subject:        Speedo Accuracy Discussion

Ok.. the pot the other day about speedometer operation has intrigued me.
Rotating a magnet in front of a jeweled pivot Aluminum disk...
Well, I have no idea of the electro-magnetic effects on Aluminum, so I will
buy that one. BUT... That tells me the odometer can be right on yet the
Speedo off. Correct?
Why I think of these things is in my daily 51 mile commute each way to work
in the Bay area, the odometer readings for both my famed reliable Toyota PU
and the Vanagon are dead on for  the entire length of the trip. In other
words, it's 51 miles whichever vehicle I take to work. I have also used the
milage markers to confirm that yes the vanagon is reasonably accurate in
the
odometer readings. But the difference in driving conditions is remarkable.
With the Toyota, 75 to 80 mph (indicated) keeps me in the fast lane, top 5%
of traffic. 75 to 80 mph (indicated) in the Vanagon keeps me in pace with
the second to third lane traffic being passed by lots of vehicles. Does
this
make sense?
So without a stopwatch, how would you confirm the speedo accuracy? I
suspect
there isn't a way but just asking. And how would you calibrate the speedo
on
the van?

tim o'brien
84 WasserBoxer
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