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Old 01-21-2009, 11:25 PM   #1
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Default coolant temp sensor placement

Hey guys, just got an oil pressure and water temp gauge off of ebay so i dont have to deal with the oem dummy gauges.

I run megasquirt using the stock coolant sensor and i dont really want to mess with that, so i am looking to order one of these:

eBay Motors: 30mm Water temp Gauge Radiator Hose Sender Adaptor (item 300252098721 end time Feb-17-09 00:34:32 PST)

First question: the miata rad hose is 30 mm right? 1.12"?

Second question: what is the correct placement of one of these. Should i put it in the lower rad hose? On my sr20det i had one placed on my upper so i obviously wouldn't get readings till the thermostat opened.
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Old 01-21-2009, 11:33 PM   #2
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well, since your oem gauge is after the thermostat why not have this one be before so you know what temps are going into your motor?
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Old 05-24-2009, 10:06 PM   #3
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Old thread, same subject:

So, I am broke and still have to get around to instaling my temp sensor for my autometer gauge.

Would there be any downfall for using a NPT Tee and Teeing off of the turbo coolant INPUT line (the one from the thermostat housing). It should be the same temp coolant, and that way if i rly want to i can see the difference between coolant coming out of the front and rear of the motor. I dont realy care about knowing the temp before my thermostat opens.
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