Fuel tank sending unit

dix wrote:did you ground the fuel line comming out of the tank during your test.

jfox wrote:I found a few with just the unit/float and rod. Actually the one from Stewart Warner (same as gauge)looks like it can also be adapted to the original flange, such as you have modified yours. I'm gonna do my best not to turn my Dodge tank into a Chevy :lol:

dix wrote:once you guys start talking ohm's that is where i'm out in left field

donivan65 wrote:,"now how about if someone needed to find a 73 - 10 ohm hot rod fuel sending unit to modify to fit in their tank that would  work with their stock fuel gauge?   Did you run into anything like that in your searching?"


I did Don, but to be honest i think just swapping the unit out is best.  Rheostats wired in series are what i'm finding....but that only address the low end adjustment and doesn't give an accurate reading between empty and full. It just puts it in the zone so to speak. It all makes my head hurt..

donivan65 wrote:I stopped over to check out JFox's 66 van fuel gauge,,,,,he put an aftermarket one in it and the stock sender won't work with it,,,,,using my latest technical tools, which to some, might be a Chevy Van 30 ohm sender, the original Dodge sender and a radio volume knob, to calculate the resistances needed for that aftermarket gauge,,,,,I am thinking he needs kind of a E=240/1/2=110 / F=30 ohm unit for that aftermarket gauge to work properly,,,,,so what does he need to do,,,,,drill a hole in the top of his tank and drop in a compatible universal sender or find another sender unit to modify the stock unit?
the proper after market fuel gauge is a autometer part#2515. it works with the stock sending unit which works like this;; 11 ohms is full;;; 73 ohms is empty. and the real beauty of it is ..its a 12v gauge with NO damn voltage limiter involved or needed. VERY satisfying to have a working, accurate fuel gauge on a dodge!!!