barbagris
Mad Scientist
- Joined
- Aug 1, 2010
- Messages
- 12,988
- Location
- On the verge of insanity
- Ride
- 1979 Guzzi V1000G5 - 2018 KTM 790 Duke
Ok - This is a genuine question. If not then I'll have to try and find a way to measure it.
Has anybody measured how many Amps or watts their 3 coils are drawing from the electrical circuit?
It might seem a redundant question - but you don't get the sparks for free.
There used to be an Industry Rule Of Thumb - which iirc was 30-40 watts PER coil.
Depends on number of plugs, rpms and whether there a wasted spark.
Why does it matter? - well if you have (for example) a 400watt alternator - need 100 for the engine than you only have 300 left for lights, heated gear, power commanders etc. If it's 150 watts then you only have 250 to play with.
My gut says there are about 240-250 free from the way the voltmeter operates.
Has anybody measured how many Amps or watts their 3 coils are drawing from the electrical circuit?
It might seem a redundant question - but you don't get the sparks for free.
There used to be an Industry Rule Of Thumb - which iirc was 30-40 watts PER coil.
Depends on number of plugs, rpms and whether there a wasted spark.
Why does it matter? - well if you have (for example) a 400watt alternator - need 100 for the engine than you only have 300 left for lights, heated gear, power commanders etc. If it's 150 watts then you only have 250 to play with.
My gut says there are about 240-250 free from the way the voltmeter operates.