04 vs 03 Dyno test on vtec.net
Hmm... I found the following quote from an old thread: http://forums.s2ki.com/forums/showthread.p...ernator+current
I believe MacGyver is also an EE.
Originally posted by MacGyver
The drag from the alternator is, for all intents and purposes, static regardless of the electrical load (I'm not going to get into back-EMF current arguments here), so if you have juice left over once everything else is powered, use the extra to run an electric water pump and save on the drag of a mechanical pump.
The drag from the alternator is, for all intents and purposes, static regardless of the electrical load (I'm not going to get into back-EMF current arguments here), so if you have juice left over once everything else is powered, use the extra to run an electric water pump and save on the drag of a mechanical pump.
He did say he was not getting into electro motive force discussions... (I wonder why...)
As the overall electrical load increases more current flows thru the alternator rotor field coil, which in turn makes it harder to turn. Thus more power is "robbed" from the engine.
This is just the first law of thermodynamics at work, aka "there is no such a thing as a free lunch".
As the overall electrical load increases more current flows thru the alternator rotor field coil, which in turn makes it harder to turn. Thus more power is "robbed" from the engine.
This is just the first law of thermodynamics at work, aka "there is no such a thing as a free lunch".
[QUOTE]Originally posted by Luis
He did say he was not getting into electro motive force discussions... (I wonder why...)
As the overall electrical load increases more current flows thru the alternator rotor field coil, which in turn makes it harder to turn. Thus more power is "robbed" from the engine.
He did say he was not getting into electro motive force discussions... (I wonder why...)
As the overall electrical load increases more current flows thru the alternator rotor field coil, which in turn makes it harder to turn. Thus more power is "robbed" from the engine.
[QUOTE]Originally posted by Luis
...
As the overall electrical load increases more current flows thru the alternator rotor field coil, which in turn makes it harder to turn. Thus more power is "robbed" from the engine.
...
As the overall electrical load increases more current flows thru the alternator rotor field coil, which in turn makes it harder to turn. Thus more power is "robbed" from the engine.
HID are notorious for their low energy consumption. They won't draw more than 3-4 amps per bulb when running, in-rush current is probably double that or a bit more when starting.
Just out of curiosity, I remember reading somewhere that the cost of implementing daylight running lights in the USA was close to a billion dollars a year just in fuel costs!
Just out of curiosity, I remember reading somewhere that the cost of implementing daylight running lights in the USA was close to a billion dollars a year just in fuel costs!
this thread is really kinda past its life span. lol. lots of dyno days have been done with ap1s and ap2s. if you do a search for dyno day, you should find plenty of what you are looking for.
Originally Posted by Wisconsin S2k,Aug 21 2005, 09:24 PM
this thread is really kinda past its life span. lol. lots of dyno days have been done with ap1s and ap2s. if you do a search for dyno day, you should find plenty of what you are looking for.

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