[DeTomaso] Gauge Corrector

[gow2 at rc-tech.net]

BTW this is also why I use a capacitance fuel level sender.  It measures
capacitance of volyme which is in general more accurate for irregular
tanks which is why they are used alnost exclusively in aircraft.



> I mean no disrespect but while it sounds like a fun project I can't
> imagine anyone caring about 16 data points on a fuel gauge unless you
> building a high end production car.
>
> G
>
>
>
>
>> Our Pantera gas tanks differ from most gas tanks in their very odd
>> shape.
>> Because of all the angles and changing dimensions, the half-filled mark
>> is
>> not the vertical center of the tank. This is not true for most gas
>> tanks,
>> that are generally rectangular in shape.
>>
>> The gauge corrector Thomas designed had 16 value points, so if you
>> started
>> with an empty tank, you could set the empty value, and as you added
>> measured amounts of fuel, you could use those 15 remaining value points
>> to
>> truly match the gauge hash marks to correctly reflect gallons remaining.
>>
>> The two versions Gary linked will do the job for most gas tanks, but………
>> not so accurately with a Pantera tank.
>>
>> The Speedway version has a custom option, but only allows two value
>> settings, one at full and one at empty. Thus it is inaccurate through
>> the
>> entire gauge range unless you just left the filling station or just ran
>> out of gas. ;-)
>>
>> The Technoversion offers four set points, which is better than two but
>> quite clearly not as good as 16.
>>
>> Thus, with either of those offerings you’re basically not correctly
>> informed of the fuel level unless the gas tank is full or empty. So both
>> those gauge correctors still leave you with an inaccurate gauge reading.
>> Which is what the corrector was supposed to fix.
>>
>> Sigh……..
>>
>> The point I'm making is the unit designed by a Pantera owner is the only
>> one that will (if you invest the proper time for calibration) work
>> accurately in our Panteras.
>>
>> I second Garth’s suggestion that Jon Haas adopt Thomas’ orphan and add
>> it
>> to his already spectacular offerings.
>>
>> Knowing Jon’s skill set, he could probably improve the design to
>> incorporate pre-loaded calibration options for some of the standard
>> gauges
>> used in upgrades, while still retaining the custom 16-point calibration
>> option for one-off situations. I imagine a simple set-the-dip-switches
>> Plug-n-Play unit would be well received.
>>
>> Such a corrector would also have wide application in the rest of the
>> hobby
>> car market, wouldn’t it?
>>
>> Larry
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