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Re: recalibrate, distance, launch

To: TeamZ3@aol.com
Subject: Re: recalibrate, distance, launch
From: Byron Short <bshort@AFSinc.com>
Date: Mon, 30 Aug 1999 20:20:37 -0700
TeamZ3@aol.com wrote:
> I believe battery strength affects calibration; the 9 volt battery is the
> GEEZ cube signal booster if you use the PP to record data.

The signal is conditioned to have no change from new all the way down to 
about 6 volts.  Below that, however, the readings will indeed change as 
the battery depletes.  So I recommend changing the battery at or below 6 
volts.  At some point we may have the hardware tell you when that 
happens.

> Finally, I must respectfully disagree with some of the comments made by B.
> Short regarding launching from a dead start.  The flywheel is the driver's
> best friend in this situation.  What the driver does with the right foot on
> the throttle as the left foot releases the clutch is extremely important.
> This was not addressed fully in the article.  With all the stock RWD vehicles
> on R tires I've owned I have found that the left foot becomes unimportant
> because with the proper right foot manipulation (or lack thereof) the clutch
> can be essentially sidestepped without excessive engine bog or wheelspin.
> The trick is to use stored flywheel energy to get the vehicle moving and then
> bring in the throttle as it dissipates; all in the span of a tenth or two.

I think Mark makes a good point here.  As a Miata driver, the clutch is 
the key pedal.  However, in the Camaro, the gas pedal was more important 
exactly as he describes.  I don't think I pointed that out very well...

Here's the file that Mark attached, below...

--Byron

> -2,27
> -2,52
> -4,75
> -4,72
> -4,72
> -2,73
> -3,72
> -5,72
> -7,71
> -8,66
> -9,66
> -8,66
> -5,73
> 0,74
> 5,81
> 13,82
> 20,78
> 25,64
> 26,54
> 20,49
> 14,48
> 5,47
> 3,44
> -3,42
> -9,42
> 
> --part1_10676048.24fc8962_boundary--



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