MGExp

MGB & GT Forum

what is the gauge thickness of the POS to starter cable?

Moss Motors
AutoShrine Sponsor
AutoShrine Sponsor
AutoShrine Sponsor
AutoShrine Sponsor

LENZ Avatar
LENZ Jim Barlow
Leominster, MA, USA   USA
1974 MG MGB GT "Murphy"
very early 74 GT
thinking of converting 2-6volt to 1 12 this spring. good time to install new POS to starter cable. MOSS part 332-075 is N/A
what is the gauge thickness of the cable. I work at a Grid energy storage company and we have all kinds of copper cables.
how many strands? we have from 10 to hundreds in the cables.
thanks
jim

. Hide banner ads & support this website by becoming a > Gold Supporting Member <
Chalky Avatar
Chalky David White
Coventry, Warwickshire, UK   GBR
Ideally as big as you can to reduce volt drop. I’d start at 25mm csa. (Assuming you mean battery to starter cable)



Edited 1 time(s). Last edit at 2018-01-12 09:20 AM by Chalky.

Jerry Avatar
Jerry Jerry Harrington
north east, USA   USA
10 gage and maybe 8 gage will do better don't forget you need to string it through stuff under the car....

. Hide banner ads & support this website by becoming a > Gold Supporting Member <
Wray Avatar
Wray Gold Member Wray Lemke
., SC, USA   USA
OE cable was 6ga. Like David says, bigger is better, but 6ga is fine.

royster Avatar
royster Roy Aber
Bethel Park, PA, USA   USA
1975 MG MGB "Nigel"
From the Department of Trivial Information:

10 gauge AWS is 0.102" diameter (less insulation) and has a resistance of 0.9989 ohms/1000 ft and can carry 15 amp maximum current
8 gauge AWS is 0.1285" diameter (less insulation) and has a resistance of 0.6282 ohms/1000 ft and can carry 24 amps maximum current
6 gauge AWS is 0.162" diameter (less insulation) and has a resistance of 0.3951 ohms/1000 ft and can carry 37 amps maximum current.

I happen to have these figures at my fingertips because I'm going to be re-wiring my MGB this winter.
Just as everyone has said, bigger is better not only in the bedroom but in the wiring, too.



"The difference between genius and stupidity is that genius has its limits."
-Albert Einstein

barry s Avatar
barry s Silver Member Barry Stoll
Alexandria, VA, USA   USA
1972 MG MGB GT
1974 MG MGB
1976 Triumph TR6
1980 MG MGB
Roy - I'm puzzled by your data. Is AWS a classification for welding wire? The amperage capacity is a function of wire gauge and length of run. Not sure how one would use your info.

oleanderjoe Avatar
oleanderjoe Silver Member Joseph Baba
Fresno, CA, USA   USA
6 Gauge Done, Don’t kick a sleeping dog.

. Hide banner ads & support this website by becoming a > Gold Supporting Member <
oleanderjoe Avatar
oleanderjoe Silver Member Joseph Baba
Fresno, CA, USA   USA
Welding supply store usually has the 6 gauge wire.

V8MGBV8 Avatar
V8MGBV8 Carl Floyd
Kinggsport, TN, USA   USA
In reply to # 3660490 by royster From the Department of Trivial Information:

10 gauge AWS is 0.102" diameter (less insulation) and has a resistance of 0.9989 ohms/1000 ft and can carry 15 amp maximum current
8 gauge AWS is 0.1285" diameter (less insulation) and has a resistance of 0.6282 ohms/1000 ft and can carry 24 amps maximum current
6 gauge AWS is 0.162" diameter (less insulation) and has a resistance of 0.3951 ohms/1000 ft and can carry 37 amps maximum current.


You sure that didn't come from the Dept. of Erroneous Information? confused smiley

AWG would be more appropriate here.



Edited 1 time(s). Last edit at 2018-01-12 01:46 PM by V8MGBV8.

. Hide banner ads & support this website by becoming a > Gold Supporting Member <
royster Avatar
royster Roy Aber
Bethel Park, PA, USA   USA
1975 MG MGB "Nigel"
My bad, you're right. That's AWG wire. I picked up the wrong table this morning.
My apologies to everyone.



"The difference between genius and stupidity is that genius has its limits."
-Albert Einstein

LENZ Avatar
LENZ Jim Barlow
Leominster, MA, USA   USA
1974 MG MGB GT "Murphy"
ok, there is 6 gauge wire out back but it consists of probably a hundred small strands of copper. wouldn't i need a cable with only about 20 strands of heavier wire?
sorry but i am electrically challenged
thanks for replies
jim

V8MGBV8 Avatar
V8MGBV8 Carl Floyd
Kinggsport, TN, USA   USA
6 gauge is 6 gauge. More strands, more flexible.

oleanderjoe Avatar
oleanderjoe Silver Member Joseph Baba
Fresno, CA, USA   USA
And your answer to Jim's Question IS ?????????

corydavies Silver Member Cory Davies
BC, Canada   CAN
1956 MG MGA
I use welding cable, 2 or 4 gauge. Welding cable has extremely tough insulation, very flexible, 2 or 4 gauge as I consider the 6 gauge a little light in some conditions but it works for most stock engines



Cory Davies

albeegreen1 Avatar
albeegreen1 Gold Member bob tresch
bordentown, NJ, USA   USA
1972 MG MGB MkIII "ALBERT"
Perhaps someone should post complete MGB
Wire gauge equivalents. (In Lucas). It will help everyone with buying new wire.

. Hide banner ads & support this website by becoming a > Gold Supporting Member <

To add your reply, or post your own questions




Registration is FREE and takes less than a minute!


Having trouble posting or changing forum settings?
Read the Forum Help (FAQ) or contact the webmaster