Should the power and ground wire both be the same size for battery relocation?

  • Sponsors(?)


93 LX

Founding Member
Jun 2, 2000
3,081
2
0
Norwalk, CA.
Visit site
Well its like a pipe.... if you have a 3/4" pipe that water is going out and you neck it down to 1/2" there will be some resistance... in the case of the 2GA wire and 1GA ground I will think you will be fine if you are not over taxing your charging system.

Make sure you clean the grounding location for the wire on the frame, firewall and back of the block. This way the you don't to use too much 1GA wire....... make sure a good braided ground strap is used on the block to firewall...
 

millhouse

Founding Member
May 14, 2002
1,985
0
46
Simpsonville, SC
www.stangnet.com
But seeing how the bigger wire would be the ground and not the power shouldn't it be fine?
Run a 20awg ground and a 1/0 starter cable and see what happens and a few seconds of cranking. :D

Your main ground should be the same size (if not bigger) than the starter wire (alternator can be smaller).

If you use 1/0 gauge cable for the starter, you need to run a 1/0 (again, or bigger) gauge cable to the rear sub-frame. After that, it's possible to get away with a smaller (I used 4awg cable) gauge cable running from the rear sub-frame to the engine block.
 

bubba-dough

Active Member
Dec 28, 2004
1,044
2
38
Indiana
Again...Your wires should be the same size.

Edit I took some of the post out as it didn't pertain exactly to the post..
 

rd

Founding Member
Jan 12, 2000
3,316
63
109
Ocean Springs MS
Visit site
Generally both wires should be the same size. Especially if they run the length of the car, say from a trunkmount.

If you ground the battery to the body, and then run ground straps at the front for the engine and starter to the body, you probably could get away with smaller cable for the ground straps, except the last one body to the battery.

I have not done the trunk mount yet, but I can attest that the wiring to the starter needs to be stout.
 
Thread starter Similar threads Forum Replies Date
Mystang66 Should I add Power Steering? Classic Mustang Specific Tech 6
Centaur 1988 Mustang Gt Convertible seems like it should have more power than this Fox 5.0 Mustang Tech 7
Slo5Oh89 Car should have a bit more power ideas? Fox 5.0 Mustang Tech 14
S just got a 347 what kinda power should it have 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 22
R Power rack, anything I should save? 1974 - 1978 Mustang II Talk & Tech 2
Modular2v what kind of power and 1/4 mile times should this be turning? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 6
2001 greenGT how much power should i get 1996 - 2004 SN95 Mustang -General/Talk- 7
G One of those annoying "How much power should I be making" threads...... Fox 5.0 Mustang Tech 12
M What kinda power should I be making?? 1994 - 1995 Specific Tech 10
B Built 347: What is this thing worth, should I buy it? What kind of power can I expect Fox 5.0 Mustang Tech 6
juiced_94gt Which wires going to the ALT. should have power at key on engine off?? 1994 - 1995 Specific Tech 1
jhonda One more what power should I make 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 6
crazypete Duraspark box: When powered up, should case be HOT? Fox 5.0 Mustang Tech 6
dcurtis Should I have more Power? Fox 5.0 Mustang Tech 3
S How much power should my new motor make? I'm hoping 340-360hp?? Fox 5.0 Mustang Tech 9
ocbaud how much power should i make??? SN95 4.6L Mustang Tech 39
jerry S should my engine be quitting at 5900 rpm or should it keep making power? Classic Mustang Specific Tech 17
BlueOvalStangGT How much power are 36# injectors good for? Should I upgrade? 1994 - 1995 Specific Tech 11
I How big of a cam should effect power brakes Fox 5.0 Mustang Tech 6
Modular2v what kind of power should i be making? Fox 5.0 Mustang Tech 1
91LX_5L Car doesnt have the power it should. 1994 - 1995 Specific Tech 34
B what kind of power should i make. SN95 4.6L Mustang Tech 5
bergs should i be power braking? SN95 4.6L Mustang Tech 8
C What mods for power should I get for a 5.0 GT? Fox 5.0 Mustang Tech 5
S What combo should my friend use and power output? Fox 5.0 Mustang Tech 4
C.Harris More classics should have more power Classic Mustang Specific Tech 10
D What kind of power should I be getting with my mods? Fox 5.0 Mustang Tech 11
D What kind of power should I be getting with my mods? 1994 - 1995 Specific Tech 3
D How far apart should LT header exit pipes be - x pipe won’t fit headers SN95 4.6L Mustang Tech 1
H 2000 mustang gt should I supercharge 1996 - 2004 SN95 Mustang -General/Talk- 4
markinms Engine Should Auto Trans Be in Drive When Setting Base Idle Fox 5.0 Mustang Tech 7
LILCBRA This should be required viewing for haters 1974 - 1978 Mustang II Talk & Tech 9
C 1998 v6 automatic should I manual swap it? 1996 - 2004 SN95 Mustang -General/Talk- 4
revcor Suspension Previous owner installed cheap no name coilovers, included a box of a bunch of extra coilover hardware, should I be concerned? Fox 5.0 Mustang Tech 1
L Just bought 2010 GT with 38k, what should I look out for? 2010 - 2014 Specific Tech 3
S Should I mod the 302 or run the 390? 1965 - 1973 Classic Mustangs -General/Talk- 34
1989FoxFan Interior and Upholstery [Solved!] Should I replace the pads and cables for my top 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 1
A How should I go about getting to 600hp? 2005 - 2009 Specific Tech 3
Prerunner5.0 Buying a 5.8 swapped Stang, anything I should be aware of? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 34
79pace Moates / TwEECer / MicroSquirt? Which one should I look into? Digital Self-tuning Forum 16
K Fox Should I/would you still use single after market gauges? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 5
9 Should i buy a 3v 2005 - 2014 S-197 Mustang -General/Talk- 2
derek2079 After installing a 195F Thermostat my car runs hotter and I don't like it. What temp should I run? I don't know what temp was in there before? Classic Mustang Specific Tech 9
D 19641/2 Mustang convertible valve covers need to know what color they should be 1965 - 1973 Classic Mustangs -General/Talk- 15
Mstng93SSP Should I just swap the whole tank? 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 31
M Digital Tuning What should I set my AFR to? Fox 5.0 Mustang Tech 10
J What should I put in a 1998 GT roller? SN95 4.6L Mustang Tech 1
K (UPDATE, more pictures!) I was just offered a Fox Body for $1,000. Help me decide if I should take on this burden 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- 44
E Rebuilding need advice as to what kit I should get and what bore 1994 - 1995 Specific Tech 19
Hudson N Should it run with IAC unplugged? 04 gt SN95 4.6L Mustang Tech 6
Similar threads