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144 Posts
Going to be running an electric water pump and fan on my engine (allowing me to dial in my temp), and wondering if anyone has experience in this department. I understand that as a rule of thumb, lower temps equal better power, higher temps yield better fuel economy. I believe 178 is the normal thermostat for B18/20s? Will running a lower temperature fight pinging, allowing more timing advance and power (or perhaps the ability to run lower octane gas; each grade is currently .30/gal more than the last in my area)? Maybe someone has used a lower temp thermostat? Or is 180 the sweet spot?
