Headlight voltage drop idea - Kawasaki Vulcan 750 Forum : Kawasaki VN750 Forums
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post #1 of 3 (permalink) Old 03-03-2013, 10:09 PM Thread Starter
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Headlight voltage drop idea

All, I have an 80 / 100 bulb on my 800 vulcan.

I wanted to show this video to show how much light i was loosing with the wimpy 16 guage wire they use to send to the headlamp...

http://s376.photobucket.com/albums/o...ps2712062d.mp4

amazing how much voltage is lost with thin wires.


kenny
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post #2 of 3 (permalink) Old 03-03-2013, 10:42 PM
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I've got to say that after opening my headlight bucket for the 1st time yesterday I was surprised how small the positive wires to the headlight were (maybe 16 ga) and was wondering about voltage loss so I may put some larger wires in myself. My question is when restrictive wiring is used (like my stock wires) is this reducing the load on the stator or is the stator working just as hard with either wire size? If the smaller wire is simply loosing some of the watts through heat I'll definatly put the larger positive wires in my '03. I'm all about being seen by others on the road. I'm just trying to protect my very hard to replace stator.
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post #3 of 3 (permalink) Old 03-04-2013, 09:14 AM Thread Starter
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Quote:
Originally Posted by FoolAmI View Post
I've got to say that after opening my headlight bucket for the 1st time yesterday I was surprised how small the positive wires to the headlight were (maybe 16 ga) and was wondering about voltage loss so I may put some larger wires in myself. My question is when restrictive wiring is used (like my stock wires) is this reducing the load on the stator or is the stator working just as hard with either wire size? If the smaller wire is simply loosing some of the watts through heat I'll definatly put the larger positive wires in my '03. I'm all about being seen by others on the road. I'm just trying to protect my very hard to replace stator.
You are actually adding series resistance with the smaller wire size so it may be helped the stator, but ever so slightly.

Actual light output is a parabolic curve in relation to supply voltage. At least I thought so anyway. In other words if you increase voltage by .1V the light output goes up by lets say 10 lumens, if you increase by .2V it will go up by 100 lumens.

I just used number out of the air as an example.

I say run the bigger wire. I have been beating the snot out of my 800 stator since day one. 50K miles and never a problem other then a dead battery sometimes from overloading the whole system (heated suit, light bar on, high beam on etc...)

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