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19Fordy · 04-07-2020, 12:43 PM

The "Ohms Law Resistance" type gas tank sending unit and the "KS Bimetallic Heat" principle gas tank sending unit comparison and resulting debate has been going on for some years on Fordbarn. As far as I can tell the result is that there is no "Ohms Law"gas tank sending unit that is compatible with and gives the same accurate readings as the KS units.

I say "No way" to the Speedway, Summit and other aftermarket units that portend to provide KS accuracy.
If there is such a unit, please post a real life photo of it with specific verified and accurate data when used as a replacement in 1930-50's Ford cars. Specifically, how much fuel is remaining in the tank at the EMPTY, 1/4, 1/2, 3/4 and FULL KS gauge readings. For instance, a 40 ford holds 14 gall. of fuel.

As a side note I think JEEP may have used Ks units also.

04-07-2020, 12:43 PM	#53
19Fordy Senior Member Join Date: May 2010 Location: Coral Springs FL Posts: 10,951	Re: reliable fuel gauge? anyone? The "Ohms Law Resistance" type gas tank sending unit and the "KS Bimetallic Heat" principle gas tank sending unit comparison and resulting debate has been going on for some years on Fordbarn. As far as I can tell the result is that there is no "Ohms Law"gas tank sending unit that is compatible with and gives the same accurate readings as the KS units. I say "No way" to the Speedway, Summit and other aftermarket units that portend to provide KS accuracy. If there is such a unit, please post a real life photo of it with specific verified and accurate data when used as a replacement in 1930-50's Ford cars. Specifically, how much fuel is remaining in the tank at the EMPTY, 1/4, 1/2, 3/4 and FULL KS gauge readings. For instance, a 40 ford holds 14 gall. of fuel. As a side note I think JEEP may have used Ks units also.