Battery in trunk, now starter drags - Team Camaro Tech
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post #1 of 8 (permalink) Old Apr 1st, 10, 11:28 AM Thread Starter
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Battery in trunk, now starter drags

I mounted my battery in the trunk and now after I drive for a while and shut it off it won't start. It acts like the battery is dead. I had it checked ( the battery) and even tried another one. The alternator is putting out between 12.5 and 14 volts. Could the wire going to the starter from the battery be too small. Also, I have the wire to the alternator going directly to the starter, is that ok.
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post #2 of 8 (permalink) Old Apr 1st, 10, 12:47 PM
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Steps
 
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Re: Battery in trunk now starter drags

Quote:
Could the wire going to the starter from the battery be too small.
Yep..you cant use normal battery ccable...with such high currents u get voltage drop which also means power drop. VxA=W
We used to use Arc welder cable on race cars.

My Spelling is not incorrect...it is creative

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post #3 of 8 (permalink) Old Apr 1st, 10, 01:09 PM
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Scott
 
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Re: Battery in trunk now starter drags

This should give you an idea of your present design flaws. It'll never work properly unless you wire it correctly. http://madelectrical.com/catalog/tm-1.shtml
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post #4 of 8 (permalink) Old Apr 1st, 10, 02:02 PM
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Greg
 
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Re: Battery in trunk now starter drags

How is it grounded? I had to add 2 or 3 ground straps after I moved my battery. Battery to fram, frame to body, frame to engine...you get the idea.

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post #5 of 8 (permalink) Old Apr 1st, 10, 02:18 PM
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Scott
 
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Re: Battery in trunk now starter drags

Best to run dedicated ground directly to block.
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post #6 of 8 (permalink) Old Apr 1st, 10, 04:51 PM
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Vall
 
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Re: Battery in trunk now starter drags

Quote:
Originally Posted by Sauron67MM View Post
Best to run dedicated ground directly to block.
Amen! That's the most common error on most remote battery installations. Poor grounds.
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post #7 of 8 (permalink) Old Apr 2nd, 10, 03:31 AM
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Re: Battery in trunk now starter drags

Quote:
Best to run dedicated ground directly to block.
And again

Plus a short one from the battery to somewhere close on the body.

My Spelling is not incorrect...it is creative

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post #8 of 8 (permalink) Old Apr 2nd, 10, 01:19 PM
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Al
 
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Re: Battery in trunk, now starter drags

Copied and pasted from the above linked "mad" site:

The battery ground (NEG) is connected to the car body at the rear. And up front, another short length 1/0 cable connects from body to the engine. This system uses the car body for the long intermediate length of the NEG side of the system all the way to the engine. (It’s actually more efficient than routing a heavy gauge cable all the way forward to the engine.)


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