#9 The thermostat determines the operating temperature of the engine. If the radiator is oversized or more efficient, the thermostat will close to maintane the engine temperature. The larger radiator will reject the heat at a faster rate than the OEM, AC will be more efficient. -----Original Message----- From: Walter Coe [mailto:Whalt@xxxx] Sent: Friday, February 08, 2002 2:01 PM To: dmcnews@xxxxxxxxxxxxxxx Subject: Re: [DML] Customizing a DeLorean > 9. Cooling system - any low temp switches or thermostats available??? HD > radiators??? KEEP THAT ENGINE COOL!!! Running an engine too cool is not a good thing. It increases emissions & decreases fuel economy. If you do this anyway you may have moisture problems in your crank case if it never gets hot enough to boil the condensation out. PJ Grady offers a heavy duty all brass radiator which is a smart thing to use if you install a better engine. More horsepower means more heat which means bigger radiator. Walt Tampa, FL