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Old 08-01-2012, 03:13 PM
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Increase Alternator Amps??

Need a little insight here.

I have never really thought my alternator was putting out its full capabilities (50 Amps) but I have recently added a second battery with an automatic switch/isolator , two amps, and (4) neon strips. In addition I have Perfect Pass as well.

Two things are happening when the batteries are low: The PP will reset itself when I turn on the neons (Battery #1), and the radio will kick off when I turn it up too loud with thumping (Battery #2). I also know they are low because I throw them on the charger after trips and they show 60%.

So, I plan to get the Alternator rebuilt. The questions I have are:
(1) Should I need to increase the amp output with my current set up?
(2) If I increase the amps, do I need to update any wiring or breakers?

Thanks for your help!
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Old 08-01-2012, 03:47 PM
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http://pages.ebay.com/link/?nav=item...d=250640576313
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Old 08-01-2012, 03:53 PM
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Quote:
Originally Posted by Wired_Right View Post
That thing is BEAUTIFUL!! But I think a bit more than I need....
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1994 MasterCraft ProStar 205
275 HP 350 Chevy Indmar
Monster Tower & PerfectPass

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"In my many years I have come to a conclusion that one useless man is a shame, two is a law firm and three or more is a congress." - John Adams
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Old 08-01-2012, 05:58 PM
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These guys might be more inline with what you are thinking. http://www.dbelectrical.com/c-7766-indmar.aspx
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Old 08-02-2012, 10:32 AM
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Guys, I am not planning on buying new. I plan to rebuild what I have.

The questions relate to: should I increase the amps, and if I have to change anything else in the boat if I do that.

Thanks for the help.
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If its not a competition ski boat, its always second best.

1994 MasterCraft ProStar 205
275 HP 350 Chevy Indmar
Monster Tower & PerfectPass

Check out the MasterCraft Buckeye Bash on Facebook!

"In my many years I have come to a conclusion that one useless man is a shame, two is a law firm and three or more is a congress." - John Adams
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Old 08-02-2012, 10:41 AM
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the case on your 50a alt isnt big enough to get any more power out of it.
you need a larger alt, period.
I have them custom made, by hand in the USA look in the classifieds
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Old 08-02-2012, 10:42 AM
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I would upgrade the wire from the alternator to the starter/battery to at least 4ga.
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Old 08-02-2012, 10:57 AM
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Thanks guys! The company that I was planning to have rebuild it said they could increase the amps a bit as long as they could get a particular part. The actual increase is unknown until I take it in.

Quote:
Originally Posted by timvan View Post
the case on your 50a alt isnt big enough to get any more power out of it.
you need a larger alt, period.
I have them custom made, by hand in the USA look in the classifieds
I'll look.

Quote:
Originally Posted by BNIROOSTER View Post
I would upgrade the wire from the alternator to the starter/battery to at least 4ga.
I have 4ga wire already. Its what I installed when I put in the second battery.
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If its not a competition ski boat, its always second best.

1994 MasterCraft ProStar 205
275 HP 350 Chevy Indmar
Monster Tower & PerfectPass

Check out the MasterCraft Buckeye Bash on Facebook!

"In my many years I have come to a conclusion that one useless man is a shame, two is a law firm and three or more is a congress." - John Adams
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  #9  
Old 07-13-2013, 01:09 AM
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Quote:
Originally Posted by BNIROOSTER View Post
I would upgrade the wire from the alternator to the starter/battery to at least 4ga.
Can you bypass the the breaker this seems to be the only way to get a 4 gauge cable on.
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  #10  
Old 07-13-2013, 05:31 AM
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Quote:
Originally Posted by sp00ky View Post
Can you bypass the the breaker this seems to be the only way to get a 4 gauge cable on.
Bypass the breaker? Really? Would you do that in your home? A boat can burn down to the waterline just as easily as a house can burn to the ground. Why not just bypass all of the safety measures?
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