Big 3 Upgrade

T

Tyshaan3

New Member

Mar 6, 2021

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Colorado Springs

Mar 6, 2021

#1

• Mar 6, 2021

• #1

Just recently did a big 3 upgrade on my 97 Cobra Convertible with 0 gauge ofc wire and now I have to jump my car and when it does start it idles very bad. Ultimately it shuts off ot sounds like it's struggling to stay on. I rerouted one ground so I was gonna try to put that back tomorrow. Any advice would help

 

D

Deleted member 38176

Mar 6, 2021

#2

• Mar 6, 2021

• #2

WTF is a "big 3" ?

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

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Mar 6, 2021

#3

• Mar 6, 2021

• #3

Whatever it is, it doesn't work.

 

T

Tyshaan3

New Member

Mar 6, 2021

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Colorado Springs

Mar 6, 2021

#4

• Mar 6, 2021

• #4

Nightfire said:

WTF is a "big 3" ?

Click to expand...

Lol look it up it's hard to explain

 

Noobz347

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Jan 4, 1985

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#5

• Mar 6, 2021

• #5

Tyshaan3 said:

Lol look it up it's hard to explain

Click to expand...

That's your homework. Provide a link. Upload or provide a link for the installation manual too.

 

Mustang5L5

That is…until I whipped out my Bissell

Mod Dude

Feb 18, 2001

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Mar 7, 2021

#6

• Mar 7, 2021

• #6

Nightfire said:

WTF is a "big 3" ?

Click to expand...

its big in the import world. Hasnt quite caught on with Mustangs as much.

You replace factory wiring with bigger cables. The big three is typically.

battery to chassis ground upgrade
Alternator to positive charging post
Engine ground to chassis ground.

 

D

Deleted member 38176

Mar 8, 2021

#7

• Mar 8, 2021

• #7

Mustang5L5 said:

its big in the import world. Hasnt quite caught on with Mustangs as much.

You replace factory wiring with bigger cables. The big three is typically.

battery to chassis ground upgrade
Alternator to positive charging post
Engine ground to chassis ground.

Click to expand...

Wow, that was sooooo hard to explain

 

Reactions: Adizzle843

M

mcalvo

Member

Mar 17, 2022

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Phoenix

Apr 5, 2023

#8

• Apr 5, 2023

• #8

Tyshaan3 said:

Just recently did a big 3 upgrade on my 97 Cobra Convertible with 0 gauge ofc wire and now I have to jump my car and when it does start it idles very bad. Ultimately it shuts off ot sounds like it's struggling to stay on. I rerouted one ground so I was gonna try to put that back tomorrow. Any advice would help

Click to expand...

I am thinking about doing a big 3 upgrade on my 93 vert. Were you able to figure out what was wrong with your car idle? Also, What gauge wire did you use?

 

Noobz347

Stangnet Facilities Maint Tech... Er... Janitor

Admin Dude

Jan 4, 1985

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Apr 5, 2023

#9

• Apr 5, 2023

• #9

This is a thread for a 3G alternator upgrade. It also addresses the [weak] wiring in the Fox body and bypasses the OEM alternator wiring.

3G Alternator Fox Upgrade

Preface: When the following procedure is complete, the ORANGE/BLACK factory alternator wire WILL NOT BE USED. Whether you cut that connector off or just leave it hanging is up to you (I prefer to just leave it tied up out of the way). Using...

stangnet.com

Yes... I realize the images are not showing up. I'm looking into that. In the meantime, if you right-click on the broken image and open it in a new tab or window, it will show. Hope to have the images fixed soon.