Accurate temperature sending unit?

[AZMoparJoe]

Is there an accurate temperature sending unit available anymore? I recently pulled the cluster out of my 69 Bee and I calibrated them against a gauge tester I built. Empty is 73 ohms, mid point is 23, and full is 10. Even the fuel gauge is dead on accurate after I rebuilt one of my many factory fuel sending units I have saved up. My dilemma is when the thermostat opens at 180, the temp gauge is almost 3/4 of the way up, hovering at the “2” at 230. I verified the temp with an infrared thermometer, as well as a mechanical gauge. I know there are many different sending units available, all of them made in chong kong or somewhere in the orient, but are ANY calibrated for a 250 degree gauge and actually accurate?

 

[dadsbee]

Good temp sensor reads about 360 ohms at a shop temp of 68/70F and once up to temp works the same 74 to 10 ohm range for the guage.

 

[AZMoparJoe]

Good temp sensor reads about 360 ohms at a shop temp of 68/70F and once up to temp works the same 74 to 10 ohm range for the guage.

I know. Do you know of an accurate sender? Somebody must have come across a good one. I’m not looking to recalibrate my perfectly functioning gauge for an inaccurate sender. Gotta be something out there.

 

[dadsbee]

You're welcome.. post a WTB for a used OE.

 

[lewtot184]

The ohms on my factory sending unit in the 440 in my 69 r/ t is 196 at room temps. The autometer sender i use in the car is192. I have an aftermarket that reads 180. I can' t specifically recommend anything. Aftermarket is a crap shoot.

 

[themechanic]

I needed a longer probe for my Edelbrock intake for the temperature to be accurate on the Dakota Digital Gauges. The sent me a longer sender and it solved the problem.

 

[kiwigtx]

Good temp sensor reads about 360 ohms at a shop temp of 68/70F and once up to temp works the same 74 to 10 ohm range for the guage.

Do you mean 36 ohms?

 

[dadsbee]

Do you mean 36 ohms?

NO... the colder it is, the higher the ohms! 74 is bottom of operating range, 10 ohms is overheating! 360 give or take is room temperature!

 

[toolmanmike]

Is there an accurate temperature sending unit available anymore? I recently pulled the cluster out of my 69 Bee and I calibrated them against a gauge tester I built. Empty is 73 ohms, mid point is 23, and full is 10. Even the fuel gauge is dead on accurate after I rebuilt one of my many factory fuel sending units I have saved up. My dilemma is when the thermostat opens at 180, the temp gauge is almost 3/4 of the way up, hovering at the “2” at 230. I verified the temp with an infrared thermometer, as well as a mechanical gauge. I know there are many different sending units available, all of them made in chong kong or somewhere in the orient, but are ANY calibrated for a 250 degree gauge and actually accurate?

Filko #2030. 2030 Temperature Sender by Filko Factory gauge I presume.