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slammin · 08-04-2018, 10:19 AM

The debate rages on! Its a fact that better combustion happens at higher temps. With temperatures below 75 degrees, my 29 never got over 145. I installed a Vintage Precision housing and 160 degree thermostat. Even with summer temps in the mid 90s, my gauge never exceeds 175. Granted, these are 30 min. trips, not climbing into the surrounding mountains. IIRC by the mid 30s Fords had thermostats from the factory. I've heard the argument "Henry didn't put thermostats in the Model A." He also filled the crankcase with 30 weight non-detergent oil.

08-04-2018, 10:19 AM	#10
slammin Senior Member Join Date: Aug 2017 Location: Fruita, CO Posts: 281	Re: Thermostat? The debate rages on! Its a fact that better combustion happens at higher temps. With temperatures below 75 degrees, my 29 never got over 145. I installed a Vintage Precision housing and 160 degree thermostat. Even with summer temps in the mid 90s, my gauge never exceeds 175. Granted, these are 30 min. trips, not climbing into the surrounding mountains. IIRC by the mid 30s Fords had thermostats from the factory. I've heard the argument "Henry didn't put thermostats in the Model A." He also filled the crankcase with 30 weight non-detergent oil.