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Old 05-12-2010, 01:52 AM   #50 (permalink)
Piwoslaw
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Join Date: Oct 2008
Location: Warsaw, Poland
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Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
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Quote:
Originally Posted by ShadeTreeMech View Post
since 1 hp is 745 watts, does it take about 1 hp to make 745 watts of power? With that info in hand, you could see how many hp you're freeing by going to LEDs
You have to take into account alternator efficiency, which is something like 50%-80%. So for each electrical watt saved you reduce the engine load by up to 2 watts.
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[Old] Piwoslaw's Peugeot 307sw modding thread
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