I've checked the archives, but the question still remains, does GM offer a replacement sending unit calibrated for a 180 degree engine and gauge? The one I bought from Zip now has my temp gauge reading 200-210 and I know this isn't right.
A few years ago I bought a new GM ZZZ crate engine for another Vette with the sending unit already in it, with a 180 degree thermostat; the temp gauge was right on the money at 180 degrees. I can't understand why this one worked OK and over the counter GM replacements don't, or at least the one I have now.
I've also read a while ago about installing an inline resistor on the sender "send" line, before the temp gauge. Has anyone found out what the the "magic" resistor value is? Seems that they would all need about the same correction factor. Thanks. Patrick
A few years ago I bought a new GM ZZZ crate engine for another Vette with the sending unit already in it, with a 180 degree thermostat; the temp gauge was right on the money at 180 degrees. I can't understand why this one worked OK and over the counter GM replacements don't, or at least the one I have now.
I've also read a while ago about installing an inline resistor on the sender "send" line, before the temp gauge. Has anyone found out what the the "magic" resistor value is? Seems that they would all need about the same correction factor. Thanks. Patrick
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