Quote:
Originally Posted by mikeyjd
In theory I think it would make more sense to run the a/c during heavy acceleration so as to get your alternator charging during peak bsfc. I could be wrong though.
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Factory 'smart' alternators disengage completely during acceleration and ramp up to max under braking. Think of BSFC as a nessesary evil, you don't actually want more load then nessecary. You want to put load on the engine when it's running at light load to get it closer to BSFC at those least efficient times.
Run your A/C at light loads, switch it off when accelerating, most 'smart' cars will switch off the A/C automatically at full load.