Aftermarket Sensor Locations/Thoughts

[worldhazard]

When running aftermarket gauges with electrical sensors, what would be the ideal location for their senders (edit): On a BP?

Oil Temp & Oil Pressure? Would this be better on a already existing spot on the block, or would a sandwich plate be better?

Water Temp? Considering an adapted in the hose to accept the sensor.. Yes/No?

Alternatives?

I'm trying to locations Secure and reliable.

[87ttsupra]

I would use the stock location for oil pressure. Oil temp in a sandwich plate. And water temp would be good in one of those hose adaptors if you can't use the stock location.

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[Kitty]

I'd run a line from the stock oil pressure port and have the pressure and temp off off that. I'd mount them on the firewall as those full range oil pressure sensors are pretty beefy and I don't trust their minimal thread engagement to support their weight.

I'd use the upper most plug by the inlet of the radiator if you have the factory one still. I don't know if those ebay full aluminum ones have all the ATX sensors. It'll give you the highest water temp you could possibly get with out having to tap anything metal.

[worldhazard]

I'd run a line from the stock oil pressure port and have the pressure and temp off off that. I'd mount them on the firewall as those full range oil pressure sensors are pretty beefy and I don't trust their minimal thread engagement to support their weight.

I'd use the upper most plug by the inlet of the radiator if you have the factory one still. I don't know if those ebay full aluminum ones have all the ATX sensors. It'll give you the highest water temp you could possibly get with out having to tap anything metal.

Looking at the Oil Accesories.. I feel like the port I want to use is actually the bottom of the two.. (where the pressure sender unit is).. the top is holding the oil temp sensor. Neither are secure right now, as they didn't want to go easily.. didn't wanna fudge up.


I see in the spec miata build, the guy used the lower of the two for the pressure sender. Would you consider adding a line and T-ing it off to attach both of the unit from this point?

When you say the water temp port, are you talking about on the ATX radiator, or the block itself by the t-stat housing (as in picture. see red)


I have a stock EGT 5-speed radiator right now, but looking at sourcing an OE mazda ATX radiator

Btw, here is a cool resource that I'm enjoying regarding a rebuild/breakin
http://blog.miataracer.com/2015/01/l...ssembling.html

[worldhazard]

actually, i imagine you COULD be talking about this location for the water temp too??

[Kitty]

I guess that would be a close equivalent for the ford radiator.

Here is the location I was talking about on the ATX radiator.



Don't mind the big homedepot bolt, I was rather pressed for a solution.

The smaller one is technically an air purge but it doesn't work. I'd use either one if I were doing a gauge.

[FE3-323]

the bolt above your oil pressure sender is for the knock sensor. it should not be a through hole to the oil gallery.

[KAinjection]

I used a sandwich adapter for the oil pressure and removed the factory coolant gauge temp sensor and retapped the hole for the new temp sensor.

[worldhazard]

so the new Mazda ATX radiator arrived. However, I'm also wondering if this (is it a sensor port?) can be used for the location for coolant temps?



Is the location on the radiator optimal? I feel like it will not necessarily provide a true-er reading like being at the thermostat might.. don't ask, that's just how i'm looking at things. could be totally wrong here.

[FE3-323]

you could run 2 sensors, one prior/one after(I.E. radiator)

[Kitty]

What are you asking is a sensor port in this picture?

[worldhazard]

What are you asking is a sensor port in this picture?

the really oily terminal just to the left of the tstat housing

[Kitty]

The factory cluster sensor?

Yes that's a sensor.

[worldhazard]

ok, i thought it would be the temp sensor. So, does this particular guy just feed the gauge cluster? I have two scenarios in my head

1) tap the port where the OE sensor goes to accomodate the larger size Autometer sensor, and use that for the reading
2) use the oe sensor in it's stock location and plug the aftermarket gauge to it? Do the sensitivity of the temp sensors vary or is it just the hardware reading from the sensor ie. aftermarket gauge/ oe gauge cluster

[KAinjection]

Re-tap the hole or make another one. The factory sensor will not have the same reading as the aftermarket and is mostly just a dummy switch anyway.

Your ATX radiator has the temp sensor because auto cars used that as a high speed fan temp switch. MTX only used the temp sensor in the head for the fans.