GM coolant sensor tip thickness?

For discussing how to choose sensors and create a wiring harness for all Bowling and Grippo versions of the MegaSquirt® EFI controller.
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65ShelbyClone
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GM coolant sensor tip thickness?

Post by 65ShelbyClone »

I know it's a bit strange, but does anyone know how thick the walls of the brass sensor tip are that encase the thermistor itself? I was thinking about using a closed-element (a Wells SU109 to be exact) sensor for manifold temperature and cutting cooling fins into the probe end to improve response. I just don't know how deep I could make the fins without destroying the sensor and I don't have any junk spares to sacrifice "for science."

I know, "just buy an open-element sensor." I would, but this is going into a high-boost, high-temperature, high-vibration application that will see water/methanol injection and I want to put the sensor downstream of the nozzle.
'68 Mustang notchback - roller 302, Edelbrocks, 650 pumper, etc
'84 Mustang SVO - E6 manifold, wet cartridge T3.
'83 Honda XL600R - turbo/EFI in the works.
convertables_10
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Joined: Wed Jul 21, 2010 9:18 am

Re: GM coolant sensor tip thickness?

Post by convertables_10 »

The open element sensor will withstand the water meth and boost. Ive been using one in my setup with a small shot of NO2. I have a spare i think i could cut on and find out for ya but itll take me a day or so.
My MegaSquirt build 85 S-15 Jimmy 350/th350 TPI MS2 2.905 hei 8pin
1983 s-10 350 tpi injection MS2 soon
1984 s-10 Blazer 350/th350 and will get an MS2 tbi.
1973 Nova 5.3/glide 76mm turbo. MS3X
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