Starter cable gage needed
#2447524
02/06/18 06:41 PM
02/06/18 06:41 PM
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Joined: Jan 2007
Posts: 8,031 Mt Morris Michigan
mopar dave
OP
master
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OP
master
Joined: Jan 2007
Posts: 8,031
Mt Morris Michigan
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Im using CSR starter on my 511. Had trouble with it disengaging and engaging while rolling engine over. I want to replace the starter cable which runs from cut off switch to starter. Currently have 6 gage cable, want something larger. CSR says i need 00 gage. Do i really need that huge cable? Gonna change out the battery as well.
Last edited by mopar dave; 02/06/18 06:42 PM.
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Re: Starter cable gage needed
[Re: mopar dave]
#2447562
02/06/18 07:23 PM
02/06/18 07:23 PM
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Joined: Dec 2005
Posts: 11,494 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,494
Fulton County, PA
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I use 2ga on everything for the main cable. Master switch to a junction in the firewall area. Distributed from there to starter relay, switch panel, etc. Good 2ga, fine strand welding cable. Big motors, high compression, whatever. Lighter, easier to work with. Never a problem. Never an issue st the track. All the chassis guys - Bickel, RJ - sell the same thing for their stuff. Don't use a junk starter.
If the results don't match the theory, change the theory.
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Re: Starter cable gage needed
[Re: mopar dave]
#2447658
02/06/18 09:44 PM
02/06/18 09:44 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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Your cable is most definitely too small. I used 00 welding cable when I mounting the battery in the trunk.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Starter cable gage needed
[Re: mopar dave]
#2447675
02/06/18 10:01 PM
02/06/18 10:01 PM
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Joined: Sep 2014
Posts: 4,457 Washington
madscientist
master
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master
Joined: Sep 2014
Posts: 4,457
Washington
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It might be 4gage. Bought 20yrs ago from summit in a battery relocate kit. Does look vety big. I have 2gage on ground side to engine block. Some of those kits had aluminum wire in them. Also, the strands were fairly big. IIRC there were only 6-8 strands of wire in the cable. I had something similar and fought starting issues. The 00 welding cable solved that.
Just because you think it won't make it true. Horsepower is KING. To dispute this is stupid. C. Alston
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Re: Starter cable gage needed
[Re: mopar dave]
#2447688
02/06/18 10:16 PM
02/06/18 10:16 PM
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Joined: Dec 2005
Posts: 11,494 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,494
Fulton County, PA
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Are you saying the csr starters are no good? I used same starter on my small and never an issue. It only disengages while starting hot, never cold. I don't know. Never used one. I was just making a general statement - starters are not all the same and they wear out. If it's acting like your OP description, I would suspect something is wrong with it.
Last edited by CMcAllister; 02/06/18 10:18 PM.
If the results don't match the theory, change the theory.
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Re: Starter cable gage needed
[Re: mopar dave]
#2447956
02/07/18 12:28 PM
02/07/18 12:28 PM
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Joined: Feb 2008
Posts: 714 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 714
Central TEXAS!!!!
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I have a suggestion, why don't you gather some data and determine what is wrong before you start replacing things? you can do a simple (and I mean simple!) voltage drop test and know which components need to be fixed. I helped a guy out that had changed his battery, cables and starter. After changing it all out his car still started poorly. took me about 3 mins to find he was dropping 2.2 volts thur his main battery cutoff and another .5 volt from his ground. If you don't know where your voltage loss is occurring you are guessing. try it! you will be surprised how easy it is. (see my sig) https://board.moparts.org/ubbthreads/ubbt...tml#Post2342153Joe
Without Data, you’re just another guy with an opinion.
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Re: Starter cable gage needed
[Re: mopar dave]
#2448100
02/07/18 05:34 PM
02/07/18 05:34 PM
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Joined: Dec 2005
Posts: 11,494 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,494
Fulton County, PA
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What is the rating of the master switch? Does it have copper or silver contacts? How old is it? What is the voltage drop across the contacts under a high load? I have fixed multiple electrical issues by changing out old or cheap switches.
If the results don't match the theory, change the theory.
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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: 11,494 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,494
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: 714 Central TEXAS!!!!
sr4440
super stock
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super stock
Joined: Feb 2008
Posts: 714
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: 11,494 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,494
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: 43,097 Bend,OR USA
Cab_Burge
I Win
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I Win
Joined: Aug 2003
Posts: 43,097
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
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: 11,684 W. Kentucky
justinp61
I Live Here
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I Live Here
Joined: Oct 2003
Posts: 11,684
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: 11,494 Fulton County, PA
CMcAllister
Mr. Helpful
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Mr. Helpful
Joined: Dec 2005
Posts: 11,494
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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