View Single Post
Old 05-12-2010, 01:52 AM   #50 (permalink)
Piwoslaw
aero guerrilla
 
Piwoslaw's Avatar
 
Join Date: Oct 2008
Location: Warsaw, Poland
Posts: 3,745

Svietlana II - '13 Peugeot 308SW e-HDI 6sp
90 day: 58.1 mpg (US)
Thanks: 1,324
Thanked 749 Times in 476 Posts
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.
__________________
e·co·mod·ding: the art of turning vehicles into what they should be

What matters is where you're going, not how fast.

"... we humans tend to screw up everything that's good enough as it is...or everything that we're attracted to, we love to go and defile it." - Chris Cornell


[Old] Piwoslaw's Peugeot 307sw modding thread
  Reply With Quote
The Following 3 Users Say Thank You to Piwoslaw For This Useful Post:
bgd73 (05-13-2010), cfg83 (05-14-2010), NeilBlanchard (05-12-2010)