[SnowBandit]

Anyone know if you can add a fuel temp gauge right after the cooler? Would have to be a gauge that starts at like 0 and runs up. Not like water temp gauges that start at 100. I like to monitor my fuel temps as try out cooling mods I have seen on here lately.

 

[guybb3]

If you find one, let us know!!!!! I am interested to watch for gelling temps. while running.

 

[marcdeluca]

There is a sensor for the computer already, my scanner reports fuel temp.

 

[habanero]

On my WVO-converted Mercedes, I used type K thermocouples and an electronic thermometer to monitor veg. oil temps. You can get NPT probes that screw right into a brass tee. If you don't want to splice into the fuel line, just get a beaded thermocouple and wrap tightly on the line. If you well insulate the thermocouple, it will be quite accurate (though a little slower responding). I had both types and have checked them against each other.

The beaded thermocouples are available from omega.com for pretty cheap, and thermometers are on ebay all the time. NPT thermocouples are also available from omega, but are a little more spendy.

 

[a bear]

Some of the digital gauges may read down to zero. My SPA oil temp gauge went down to 31 degrees once but it rarely gets any colder down here so I'm not sure what the low point is.

 

[guybb3]

On my WVO-converted Mercedes, I used type K thermocouples and an electronic thermometer to monitor veg. oil temps. You can get NPT probes that screw right into a brass tee. If you don't want to splice into the fuel line, just get a beaded thermocouple and wrap tightly on the line. If you well insulate the thermocouple, it will be quite accurate (though a little slower responding). I had both types and have checked them against each other.

The beaded thermocouples are available from omega.com for pretty cheap, and thermometers are on ebay all the time. NPT thermocouples are also available from omega, but are a little more spendy.

Thanks for the experience, Hab. I have access to plenty of thermocouples so I think I will just wrap a fuel line like you mentioned. Did you insulate with rubber fuel hose or the like, over the thermocouple wire? What did you use? Thanks for the help.

 

[habanero]

I tried several things for insulation. I had moderate success with foam pipe insulation-as long as it didn't get fuel or oil spilled on it. I had better success with unfaced fiberglass pipe insulation wrapped a few layers deep. Depending on the location, I wrapped the insulation with either duct tape or the aluminized exhaust repair tape for abrasion resistance.

 

[habanero]

Don't know why I didn't include this before, but another potential advantage of using a thermocouple thermometer for fuel temps is you can get a dual channel model and hook up a pyrometer to the other channel. Most pyros are type K, anyway. The wiring might be a little dicey, since splicing thermocouple wires isn't as simple as regular copper wiring, but you could probably just put the connector right on the end of the factory pyro wire. Just have to watch polarity.

Heck if you go this route, you can get 4 channel thermometers monitor any four temperatures you want (pyro, fuel, oil, water, tranny, outside, etc.). I think Omega even has a 6-channel switch box, but as I recall it isn't cheap.

 

[golfcartguy]

I can plug the Predator in for real time fuel temp data. The other day when it was in the 20's here, after driving about 10 miles my fuel was at 110 degrees F. Not sure where it picks the temp up from but it seemed warm to me for such a short trip.
​

 

[guybb3]

I think Omega even has a 6-channel switch box, but as I recall it isn't cheap.

And to think I threw one away at work a few years back. Live and learn.