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Avanti R2 EFI - Coolant Temp Sensor

Tim G

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I've been thinking for a while about adding EFI to my 64 R2 and I think I've found a good system from Fitech:  The Go EFI 4 Power Adder.


One required part of the install is a coolant temp sensor that is 3/8" NPT.  I haven't taken the bracketry for the ignition shielding off the engine to get to the coolant sender on the back of the driver's side head...Is it 3/8"?  If not, any other ideas where I could install this sensor?



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I drilled and tapped a spot on the water manifold. There is a bleed petcock that I removed and placed it there. 

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The stock sending unit is mounted to a plate that bolts to the head. There is a blank plate on the passenger side. There is no reason whatsoever that you couldn't put one on the passenger side also.

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