Russ,
As I indicated in an earlier email my delta between actual and measured was
approximately 7% (and that included wheel spin). There had to be some wheel
spin (refer to the link I included). I never exceeded 186 mph on the speedo
and that equated to approximately 174 measured.
Jim
----Original Message Follows----
From: "Russel Mack" <rtmack@concentric.net>
Reply-To: "Russel Mack" <rtmack@concentric.net>
To: <jkamo@rap.midco.net>
CC: "Jim Belford" <jimbelford@msn.com>, <land-speed@autox.team.net>
Subject: RE: Thanks for a Great Event
Date: Mon, 28 Oct 2002 21:44:43 -0600
Joe, List:
Joe's predictions (and Jon's, also) regarding my speed potential were closer
than mine; they predicted 149 and 148 respectively, if I remember correctly.
I think I told Bill (on the drive to Wendover) that I thought the bike had
around 165 in her. We actually had to scratch and claw and change
everything possible to get to 155; the original configuration would have
probably maxed-out at about 148.
When we arrived in Wendover the Amos asked me what I based my expectations
on, and I told them speedometer readings from recent runs on Texas farm
roads. They pointed-out that (besides the density-altitude thing) there is
a lot of speedometer error-- and I basically "blew it off", because I've
done a lot of vehicle testing, and I already expected some error. But guess
what-- these damn "bullet-bikes" have HUGE speedometer error-- mine is about
22-24%. For example-- on my SCTA-timed 155mph run, my speedometer said
192mph!!! I think Jim Belford had the same kind of nasty surprise on his
one-liter gixxer.
I learned a lot on this trip, and much of it from the Amos. The other point
I want to make is that-- when I learned that my expectations had been
grossly misled by a lying speedometer-- I really felt kicked in the cahones
(so to speak) for a day or so. Much my bike's progress over the week was
driven by Bill Smith's enthusiasm, optimism, and capacity for hard (and
effective) work. And by the Amo brothers prodding me to go ahead and make
some changes. Thanks again.
Russ
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