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Matt L.
01-19-2009, 05:40 PM
1990 240sc

I'm currently very far from my boat and trying to order stuff so I can hit it hard when I get home.

I'm re-wiring everything from the batteries to the starter and up to the ignition system.

What size (AWG) Battery cable should I use. I'm using all tinned copper Marine Grade wiring connectors and running everything one size bigger than original.

I'm also installing the Borg Warner R3098 with dual Batteries under the back seats.

Any Idea on length of red and black Batt cable, and the size and number of connection terminals needed would be welcomed. Any other suggestions are welcomed since I'm trying to mentally visualize and list everything I need without actually being able to lay hand on my boat!

Thanks!

Matt

AWG Wire Specs
Wire Size (AWG) Nominal OD Weight per 1000' Cir.Mil. Area Square mm Ohms per
2 15/32" 277# 66,500 33.62 0.157 210
1 17/32" 350# 83,690 44.21 0.127 245
1/0 9/16" 437# 105,600 53.49 0.099 285
2/0 5/8" 549# 133,000 67.43 0.077 330

Gamble
01-19-2009, 05:48 PM
Matt, personally, I would wait til I can get your hands on your boat before getting all the wire and stuff.......the bigger gauge wire gets expensive, and if you're a foot short, you're kinda hosed. I can't remember what gauge number to use, I'm sure Harold or someone call tell you on here.......or call your local m/c dealer and ask them. I'd sure wait til I got to my boat before gathering all the stuff, if that's an option. That way, when you need something else, you can just run to the store and get it. Remember to start w/a full tank of gas in your vehicle, if you're like me, it'll mean several trips to the store!

FrankSchwab
01-19-2009, 08:20 PM
Also note that there is marine-specific wiring that you should use. It uses a larger number of smaller diameter individual strands compared to standard automotive wire; it's more flexible and less subject to fatigue from vibration.

How important is it? Your guess is as good as mine, and sometimes better.

/frank

Matt L.
01-21-2009, 12:02 PM
1990 240sc

I'm currently very far from my boat (10 Time zones East) and trying to order stuff so I can hit it hard when I get home.

I'm re-wiring everything from the batteries to the starter and up to the ignition system.

What size (AWG) Battery cable should I use. I'm using all tinned copper Marine Grade wiring connectors and running everything one size bigger than original.

I'm also installing the Borg Warner R3098 with dual Batteries under the back seats.

Any Idea on length of red and black Batt cable, and the size and number of connection terminals needed would be welcomed. Any other suggestions are welcomed since I'm trying to mentally visualize and list everything I need without actually being able to lay hand on my boat!(during 2 really bad mandatory daily meetings)

Thanks!

Matt

AWG Wire Specs
Wire Size (AWG) Nominal OD Weight per 1000' Cir.Mil. Area Square mm Ohms per
2 15/32" 277# 66,500 33.62 0.157 210
1 17/32" 350# 83,690 44.21 0.127 245
1/0 9/16" 437# 105,600 53.49 0.099 285
2/0 5/8" 549# 133,000 67.43 0.077 330

cmw
01-21-2009, 04:04 PM
I have a 90 210 Maristar and batteries will not fit under the seats. I'm sure you checked, I'm sure they are quite different boats. Just wanted to mention in case.

flipper
01-21-2009, 04:48 PM
Didn't you already do a thread on this?

http://www.mastercraft.com/teamtalk/showthread.php?t=28322&highlight=wire+length

Jim@BAWS
01-21-2009, 05:01 PM
I can be of great help

RED go to POSITVE
BLACK goes to NEGATIVE

Sodar
01-21-2009, 05:03 PM
Yes, this is the second thread asking the same ????

Matt L.
01-21-2009, 05:15 PM
Nobody responded in the Electrical Forum so I posted it here.

CMW, They are already under the back seats.

I'm just looking to upgrade all of the wiring and connectors from the batts to the Distributor due to some corrosion and resistance causing ignition problems. The Pertronix Igniter II was acting up due to low voltage getting to the coil.

Question still stands, what AWG Gauge Battery wire should I use. Who has good prices for high quality marine grade wire?

I'll wait to order when I get home, just trying to get my head together on this issue.

Thanks,

Matt