In
This Section...
- 130
AMP UPGRADE
- OEM
Replacement (Clocking Issue G2)
You MUST upgrade the main Alt power wire ( to at least 4 gauge )
...or you will melt the stock 10 Gauge wires... !
The stock Mustang has Two, 10 gauge (black/orange) power wires, which connect to the + on the starter solenoid. These stock wires will melt if used with the upgraded alt.
DO NOT REMOVE these 2 wires....they will still be used with the new 4 gauge power wire, because they still are connected to other components that send info to the computer.
...or you will melt the stock 10 Gauge wires... !
The stock Mustang has Two, 10 gauge (black/orange) power wires, which connect to the + on the starter solenoid. These stock wires will melt if used with the upgraded alt.
DO NOT REMOVE these 2 wires....they will still be used with the new 4 gauge power wire, because they still are connected to other components that send info to the computer.
- The stock 87-93 Mustang alternator is a Motorcraft "G2" unit
- 5 speed cars had 65 amps
- auto trans had 75 amps
- The 1994 and up Fox Mustangs and most Fords used the Motorcraft "G3", some 130amp others 90amp. You can choose to put the 90amp units as well. Anything is better that the "I have my lights on I can't run the a/c or radio" 65 amper.
What I bought...
Bought the upgrade 4 Gauge power wire from Pa-Performace.com $49 (comes with 120amp fuse & holder)
Bought the G3 conversion kit (the plugs for new alt) from Pa-Performace.com about $8
Bought the 130 Amp Alt from Autozone $109. I asked for a 94 Mustang V6.
Bought a 1 1/2 inch bolt & nut..most of these alts do not have the threads in it for the upper bolt.
short how to...
Remove
the upper Radiator Hose.Removed Air Filter box & tubing to the throttle body
Removed the Old Alt and wires...then just follow the instructions from the Pa-preformance kit:
- Cut the 3 wires from the harness the other (smaller) connector plugs directly into the new G3 alt.
- Place, crimp & solder eyelets to the 2 10 gauge black & orange wires
- crimp & solder the new harness to the white wire.
Detailed How To:
After you remove your old stock alternator:
You will have to cut the stock alt bracket with a grinder...this took about 20 seconds! Its aluminum.
Test fit the new alt to make sure it now clears the bracket. Some mustangs have different brackets & you may not have to grind them....always test fit first.
Photo shown is after I've removed part of the bracket.
