Wattage divided by voltage = amperage.
Add everything up and then give yourself about 20-25% margin.
Your gonna need a good one if you run everything at once....
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| Author: | FlaBaja [ Sun Jun 10, 2007 1:55 am ] |
| Post subject: | Alternator requirements |
Im trying to figure out how big of an alternator i need to get. Heres what it will be running: 3 ProComp 130watt offroad lights 2 Empi 55watt lights 2 headlights tailights tag light A few idiot lights (guages later) 009 with Petronix (MSD later) Does anyone know how big of one I will need. I have been told that I dont want the usage to exceed 80% of the alternators capacity. None of my lights say anything about how many amps they draw or what size fuse to run. |
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| Author: | Odyknuck [ Sun Jun 10, 2007 12:16 pm ] |
| Post subject: | |
Your lights alone will draw over 40 amps. This will be your highest draw on your electrical system. I would run 3 circuits for them. One 30 amp (#10 wire) for the 3 - 130 watters, 1 - 20 amp (#12 wire) for the other 4 head lights and one 15 amp (#14 wire) for your tail and brake lights. Use a 65 Amp minimum alternater. By doing it this way you will be fully protected and if you have a short in one of the circuits you will still have lights to get you home and not a fire to see by lol. Hope this answers your questions. |
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| Author: | turboblue [ Sun Jun 10, 2007 3:03 pm ] |
| Post subject: | |
Wattage divided by voltage = amperage. Add everything up and then give yourself about 20-25% margin. Your gonna need a good one if you run everything at once....
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| Author: | FlaBaja [ Sun Jun 10, 2007 4:12 pm ] |
| Post subject: | |
Thanks guys! That was very helpful |
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