Quote:
Originally Posted by FirstOwner69
I assume you mean the hole my bypass runs to. It is 1/2". I thought about putting the sensor there, but it would have been right under the radiator hose and would have also required a spacer under the thermostat housing. I had also read that the head location gives a more accurate temperature reading. However, it became a moot point when I learned I needed the bypass hose.
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On a DIFFERENT manifold, I ran one there and no noticeable difference in temp reading. But, it DID touch the hose and I was always worried it would rub thru.
Fuel injected cars run that temp sensor in that position and not in the cyl head so I think, although maybe slightly different, it actually gives a better sample there for coolant temp last place heading for the thermostat without a spike due to cyl head temp.