Yeah, I figured that too but forgot to mention
it. It's just a way to compensate for the "real
world" vs the "ideal world". My clocked speed is
always almost 5% lower than the computer said it
should have been.
By factoring in that constant, I'm not
dissapointed when the time slip is a little "shy"
of what I would have expected had I not factored
in the constant.
Dick J
--- Joe Amo <jkamo@rapidnet.com> wrote:
> Dick, that "constant" also likely has
> to do with the tach you are currently using.
>
> Joe :)
>
> Dick J wrote:
>
> > Maybe everybody already does this, but if
> not, it
> > is a little trick you might want to use. I
> have
> > a plastic covered chart that I carry on the
> front
> > seat of the Camaro when I race. It has my
> tire
> > size options,(one side for my short tires,
> and
> > the other side for my tall tires) and then a
> > breakdown of speed determined by RPM in 500
> RPM
> > and 100 RPM increments grouped around my
> pre-set
> > red line. There are about ten speeds listed
> per
> > side in order to allow quick reference. I
> have
> > it printed in GIANT font so that I can read
> it at
> > a quick glance. Needless to say, I know my
> RPM
> > through the clocks (pretty close, anyway).
> As
> > soon as I get to the turnoff, I check the
> chart
> > real quick to see approximately how fast I
> went.
> > After about fifteen runs, I have added a
> constant
> > into the standard formula. I have determined
> > that multiplying the ideal final speed by
> .957
> > will allow for both tire stretch and the
> slippage
> > in my TurboHydro 400 transmission and will
> give a
> > more accurate result for my car. That formula
> > modification is for Maxton only. I will have
> to
> > use a different constant for Bonneville, but
> > should be able to figure out what it is after
> one
> > or two runs.
> >
> > This chart is just to satisfy my curiosity,
> and
> > to keep me from going crazy while waiting for
> my
> > push truck and crew to get to me to let me
> know
> > what I actually ran. As you all know,
> waiting on
> > them can be the longest five minutes in the
> > world.
> >
> > Dick J
> > In East Texas
> > NEW from Yahoo! GeoCities - quick and easy
> web site hosting, just $8.95/month.
> > http://geocities.yahoo.com/ps/info1
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