Upgraded alternator needed? How big?
#1
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Upgraded alternator needed? How big?
Going to be purchasing a new alternator for the boat and it will need to power a new stereo system (not ridiculous but good) as well as a flat screen and stereo system in the cabin. My friend who is going to be helping me said I should get a 200 amp version. What are your thoughts? I am not a stereo guy and really don't know what is needed or what is overkill?
thanks
thanks
#3
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What do you have now ? A 40 amp max motorola with a single v belt? 90 amp on a serp?
Clearance issues and chronic belt slip can accompany a big upgrade from the puny base alternators .
I have seen people add a second alt to those systems, opposite the power steering pump.
If your running a serp, should be able to bolt a beefy oem alt on there especially if you convert to the cast aluminum mounting system , a worthy upgrade in itself if your running steel accessory mounts
Clearance issues and chronic belt slip can accompany a big upgrade from the puny base alternators .
I have seen people add a second alt to those systems, opposite the power steering pump.
If your running a serp, should be able to bolt a beefy oem alt on there especially if you convert to the cast aluminum mounting system , a worthy upgrade in itself if your running steel accessory mounts
#4
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This is an older motor so it has a V belt and the old alternator is a prestolite 3 wire so probably not much. I also read that the higher amp ones might require 2 v-belts because of the slippage and come with 2 belt pulleys. It does have a large steel accessory mount.
I was looking at something like this but they also have a 160 amp.
https://www.dbelectrical.com/product...sal-mount.html
I was looking at something like this but they also have a 160 amp.
https://www.dbelectrical.com/product...sal-mount.html
#5
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#7
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stock merc usually about 65amp, I have used the the 100 amp single wire ones and worked great, and yes good idea to upgrade the wire from alt to starter as well
#9
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The stock alternator wire, if I recall is 10 gauge, and, is not going to cut it when you upgrade alternators. I am running 100 AMP alternators on my engines, with 6 gauge wire from alternator to starter post. Single Vee belt on them, I have not had any belt slipping issues or anything like that. How big of a stereo system are we talking here?
http://www.genuinedealz.com/voltage-drop-calculator
http://www.genuinedealz.com/voltage-drop-calculator
#10
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Probably a couple of amps and a sub with a complete separate system for the cabin including a flat screen and video for the kids.
I have seen they have kits for these higher amp alternators
https://www.dbelectrical.com/product...y-0-gauge.html
I have seen they have kits for these higher amp alternators
https://www.dbelectrical.com/product...y-0-gauge.html