Re: Starter cable gage needed
[Re: mopar dave]
#2448116
02/07/18 05:57 PM
02/07/18 05:57 PM
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Joined: Dec 2005
Posts: 11,658 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,658
Fulton County, PA
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I've checked them with an ohm meter and caught bad ones. But it's a big difference when trying to run a few hundred amps through it. I usually just change them out occasionally or if an issue pops up. I would think a voltage drop test from the battery positive to the output stud of the main switch, while the starter is engaged, would show any issue with the switch.
If the results don't match the theory, change the theory.
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Re: Starter cable gage needed
[Re: mopar dave]
#2448449
02/08/18 12:42 PM
02/08/18 12:42 PM
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Joined: Feb 2008
Posts: 715 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 715
Central TEXAS!!!!
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Dont know, but i can check. Maybe 10yrs old longacer switch. What should all the measures be to get a passing grade? Dave take a few mins to go to youtube and look up "voltage drop test". once you understand how to test, your electrical problems will go away and any that come up can be solved quickly. this is a skillset that every DIY'er should know how to use. also the correct answer is "0" voltage loss across the switch. climbing down off of soap box Joe
Without Data, you’re just another guy with an opinion.
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Re: Starter cable gage needed
[Re: mopar dave]
#2448559
02/08/18 03:52 PM
02/08/18 03:52 PM
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Joined: Dec 2005
Posts: 11,658 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,658
Fulton County, PA
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Correct, any resistance across a switch, replace it.
Was looking at a Ron Francis catalog this morning for something and ran across his trunk mount battery cable kit for street rods with EFI, power accessories, etc. 1ga.
If the results don't match the theory, change the theory.
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Re: Starter cable gage needed
[Re: mopar dave]
#2448564
02/08/18 04:04 PM
02/08/18 04:04 PM
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Joined: Aug 2003
Posts: 43,284 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,284
Bend,OR USA
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I would , and do , use either #1 or #0 for my trunk mounted batteries depending on the compression and if it is a street car or race only car. #0 on race only cars with multiple grounds also ![up up](/ubbthreads/images/graemlins/custom/thumbs_up.gif)
Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
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Re: Starter cable gage needed
[Re: dvw]
#2448600
02/08/18 05:13 PM
02/08/18 05:13 PM
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Joined: Oct 2003
Posts: 11,685 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,685
W. Kentucky
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Most tech guys track test is to flip the switch to off and have you try and crank. Better make sure it shuts the starter solinoid feed circuit off if the starter main feed doesn't go through the switch. Doug It will.
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Re: Starter cable gage needed
[Re: mopar dave]
#2448615
02/08/18 05:45 PM
02/08/18 05:45 PM
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Joined: Dec 2005
Posts: 11,658 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,658
Fulton County, PA
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Rule book says master switch must shut off all electrical functions. Ever have a starter "stick", solenoid jam and keep the starter engaged? I have. How you going to fix that when the starter is hooked directly to the battery? If running the starter smokes your master switch, you need a better master switch.
If the results don't match the theory, change the theory.
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Re: Starter cable gage needed
[Re: mopar dave]
#2448866
02/09/18 01:04 AM
02/09/18 01:04 AM
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Joined: Jan 2011
Posts: 4,785 Utah and Alaska
astjp2
master
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master
Joined: Jan 2011
Posts: 4,785
Utah and Alaska
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I used aircraft wire, it has like 120 strands in it in a 1/0 size, and it can handle the amperage of a standard wire that is 1 size larger. Tim
1941 Taylorcraft 1968 Charger 1994 Wrangler 1998 Wrangler 2008 Kia Rio 2017 Jetta
I didn't do 4 years and 9 months of Graduate School to be called Mister!
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