Feds

Just bought an oil temperature gauge for my car, and I am looking at where to put the temp sender. So far, my reasearch has found a couple of options:



1. Oil Drain Plug: Seems cheesy, don't want to go there.

2. Replace Sub-zero temp sender: I kinda like this idea, since I don't have the sub zero system anymore.

3. T in where the oil pressure sensor is. Not sure about flow to this area.



So, I would like to open a debate. What are the advantages/disadvantages of each location? What kind of temps do you see at the location your sender is? Are there any other locations I should be thinking about?



I don't really want to get one of the pedistal mounts, since it will be more than my sensor and sender combined.



Thanks!

DJ Rotor

That's what I did, works well. Try to find a BSP threaded fitting if you can, I had to use an NPT threaded fitting and it works but not as neat as I'd like.

setzep

Mine is in line with the filter going into the engine.

Racer X

One more thing on my to do list.

Feds

Do you know the threads on the hole? I will do the usual take-fitting-to-store-and-see-what-fits, but if you know off hand, that would help.



Thanks for the replies.

DJ Rotor

If I'm not greatly mistaken it is a 1/8" BSP.

Jeff20B

Yeah, it's 1/8" 28 threads per inch BSP.



Fed, I don't see your point in worrying about spending $60 or so on an adaptor from Racing Beat for a $15 guage. That just doesn't make sense to me. Heck, I got a temp guage for free but still purchased the adaptor kit from Racing Beat. Different priorities I guess.

j9fd3s

i tapped the banjo bolt on the oil line and put it there

Feds

I just don't see the point in spending money on something if I don't have to. The $50 that I don't spend on the pedistal = $50 closer to a megasquirt, or $50 closer to new suspension bushings, etc. I'm not "financially independant" yet, and even if I where, given the choice between expensive and cheap for the same function, I'll take cheap (as long as the weight penalty is acceptable) every time.

Jeff20B

In that case, just install the temp sender in the oil pan. It'll show the oil at its hottest, but at least you'll be that much closer to a MegaSquirt. If given the choice, it's what I'd do in your situation. You can always get an adapter later. Besides, the MegaSquirt only measures water and air temperature.



By the way, do you know about the 47k ohm bias resistor needed at R4 if using the stock Mazda air temp thermistor?