Gauges for under dash 3 hole panel

miniceptor86

miniceptor86

Senior Member
I replaced the original gauges in my ‘39 Standard with NVU Woodward. And I have a three hole panel for 2 1/16 gauges residing in the butchered radio space. I’m thinking of a vacuum gauge and a tach but wondering about the third position. Clock, not really watching the time and have a phone. Oil temp and which scale 0-300, 0-150? and don’t know where the sender should go. Another water temp so I can monitor each head? What say you? Something else I’m not thinking about?

Thanks, Jim
 
Locate a small speaker for your Bluetooth to mount behind the panel. Re do the panel to accept a screen for rear view camera.........
 
How about an Air Fuel Ratio gauge? I found it very useful in tuning my flatrod. Requires welding in a bung in the exhaust pipe for the sensor. Bung and sensor typically come with the gauge.
 
All my original gauges work, but I also have these in my '46 Super Deluxe
 

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I like a vacuum gauge, a second (mechanical) temperature gauge, and a second (mechanical) oil pressure gauge (just to be sure).
 
Thanks for the replies. Does the small 2” tach seem useless? Maybe a tach in general is useless since I’m not racing.
 
I worked with Diesel engine applications in my career. Our engines had an oil cooler designed into the engine that was cooled by the coolant. The oil temperature is going to be higher than the water temperature, so the 0-300 deg F would be the correct range for an oil temp gauge.

The oil temperature should be measured in the oil sump of the engine, not in an oil pressure line. So, you would probably have to add a boss to the oil pan to install the sensor. For a temporary installation you can attach a thermocouple to the dipstick and measure oil temperature.

I don't think you need an oil temperature gauge in a stock Ford flathead. Now if you have a Corvair, I would be in favor of measuring oil temperature.:)
 
Zeke3 said:
I worked with Diesel engine applications in my career. Our engines had an oil cooler designed into the engine that was cooled by the coolant. The oil temperature is going to be higher than the water temperature, so the 0-300 deg F would be the correct range for an oil temp gauge.

The oil temperature should be measured in the oil sump of the engine, not in an oil pressure line. So, you would probably have to add a boss to the oil pan to install the sensor. For a temporary installation you can attach a thermocouple to the dipstick and measure oil temperature.

I don't think you need an oil temperature gauge in a stock Ford flathead. Now if you have a Corvair, I would be in favor of measuring oil temperature.:)
Click to expand...

Good info. Guess I’m not interested in messing with the pan since it’s not leaking and better that way. So oil temp is out.
 
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