Originally Posted by foreverzero

Iv'e heard some people say that turning your heat on actually lowers your E.T. because it helps remove heat from the engine...I know running your car with the A/C on hurts the times, but I have never heard of running with the heat on....Im calling but has anyone else ever heard of this?

Originally Posted by John_D.

Information on alternator loading:

Simple Version

http://www.alternatorparts.com/under...lternators.htm

REGULATOR

The regulator has two inputs and one output. The inputs are the field current supply and the control voltage input, and the output is the field current to the rotor. The regulator uses the control voltage input to control the amount of field current input that is allow to pass through to the rotor winding. If the battery voltage drops, the regulator senses this, by means of the connection to the battery, and allows more of the field current input to reach the rotor, which increases the magnetic field strength, which ultimately increases the voltage output of the alternator. Conversely, if the battery voltage goes up, less field current goes through the rotor windings, and the output voltage is reduced.



Techie Version:

http://www.inderscience.com/storage/...1167102389.pdf

Page 7

Chart showing mechanical energy required to produce electrical energy, based on a 42V 5 kW alternator. 3000 watts mechanical = 2500 electrical. 5000 watts mechanical = 4000 electrical.
etc.