Quoting Christopher Middlebrook <delamothe@xxxxxxxxxx>: > An 8 amp load on an alternator requires about 2HP to turn the rotor. So > essentially any horsepower gainedgoes out in the wash when the motor is > turning the alternator. Actually Chris, there may be no horsepower increase by increasing the power to the ignition. There would have been an increase if the engine was misfiring. In a properly firing engine, increasing the power to the ignition does nothing to the power output... So, there may be a net power loss by increasing the power to (properly functioning) ignition. D^2