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  #11  
Old 03-30-2021, 07:06 PM
striper56 striper56 is offline
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Thanks everyone for the information. It looks like the 2/0 wire is the way to go. One last thought could I run the 2/0 to a block on the transom then switch it to a #1 or 1/0? I think the 2/0 will be a bitch to get through the harness.

I found a guy with the same motor who is willing to do the amp test this weekend. I will report back the results.

Thanks
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  #12  
Old 03-30-2021, 10:17 PM
erebus erebus is offline
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You can run the 2/0 to a block on the transom and then switch over to the factory outboard battery cables. Very standard install.
I used one of these in the transom with a 3/8 stud:


https://www.bluesea.com/products/cat...Dual_PowerPost

I looked on my Sceptre today and I guess I did end up using 1/0 from the batteries to the transom. Oh well, I thought I had used smaller stuff.
Ran the OEM Evinrude cables through the rigging tube and hooked them up to the power posts.
Engine has a dedicated battery. Used an Automatic Charging Relay to charge the house battery. Batteries are under the floor by the helm.
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  #13  
Old 03-31-2021, 07:32 AM
Old'sCool Old'sCool is offline
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Quote:
Originally Posted by striper56 View Post
Thanks everyone for the information. It looks like the 2/0 wire is the way to go. One last thought could I run the 2/0 to a block on the transom then switch it to a #1 or 1/0? I think the 2/0 will be a bitch to get through the harness.

I found a guy with the same motor who is willing to do the amp test this weekend. I will report back the results.

Thanks
You need to calculate the load. What you're suggesting will negate the larger wiring on the longest run.
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  #14  
Old 04-06-2021, 01:06 PM
Surfnski Surfnski is offline
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I wouldn't try running 2/0 through the rigging tube, splice lugs at the transom is the way to go. Another thing to consider is shortening the factory leads if you have a large amount of excess coiled up at the transom.
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  #15  
Old 04-06-2021, 04:05 PM
kmoose kmoose is offline
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Quote:
Originally Posted by Old'sCool View Post
You need to calculate the load. What you're suggesting will negate the larger wiring on the longest run.
Actually it will not. As long as the smaller tap cable is on the load side you will negate the majority of the line loss in the 2/0 running from the front to the connection point at the transom. I also agree that ridding any excess coiled wire from the motor feed is best. Wire coils are chokes (resistors) and add to the load.
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