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- HSV VS Senator, VX Calais II L67
A little mod I've been planning to do for years but never go around too.....
Required parts:
Diode 1N4007 or similar
some wire
Crimp connectors
Heat shrink tubing
Solder
Time
Cold snacks.....
Purpose.
To increase alternator output voltage above normal. A diode has a .6 volt drop across it when power is applied. By adding this to the battery voltage sensing wire the alternator will see .6 volts less then actual and increase the output by the same amount to compensate.
How....
1. Solder a bit of wire to each end of the diode.
2. Heat shrink over the diode (remember the polarity).
3. Add crimp terminals to each end ( and mark one end for polarity)
4. Install on vehicle.
I used 8mm crimp lugs, unbolted the original alternator voltage sensing wire and added my diode pig tail into the loom. The diode has a little silver band on one end, this needs to face towards the alternator.
Test. IF you have installed it correctly you should see a .6 volt increase over what you had before. If you installed it incorrectly (wrong polarity on the diode) the battery light will be on and the alternator won't be charging so you will need to turn it around and re-test.
I installed this on a VX but it should work on any car fitted with an alternator that has a voltage sensing wire (VN to VY). VE and onward use a different alternator voltage control system so I have no idea if this would work. On my car the battery voltage (at idle, no load) went from 14.1 to 14.7 volts.
Consume cold snack.
Warning: I make no guarantees that this will work and won't blow up your car. Do this mod at your own risk.
Required parts:
Diode 1N4007 or similar
some wire
Crimp connectors
Heat shrink tubing
Solder
Time
Cold snacks.....
Purpose.
To increase alternator output voltage above normal. A diode has a .6 volt drop across it when power is applied. By adding this to the battery voltage sensing wire the alternator will see .6 volts less then actual and increase the output by the same amount to compensate.
How....
1. Solder a bit of wire to each end of the diode.
2. Heat shrink over the diode (remember the polarity).
3. Add crimp terminals to each end ( and mark one end for polarity)
4. Install on vehicle.
I used 8mm crimp lugs, unbolted the original alternator voltage sensing wire and added my diode pig tail into the loom. The diode has a little silver band on one end, this needs to face towards the alternator.
Test. IF you have installed it correctly you should see a .6 volt increase over what you had before. If you installed it incorrectly (wrong polarity on the diode) the battery light will be on and the alternator won't be charging so you will need to turn it around and re-test.
I installed this on a VX but it should work on any car fitted with an alternator that has a voltage sensing wire (VN to VY). VE and onward use a different alternator voltage control system so I have no idea if this would work. On my car the battery voltage (at idle, no load) went from 14.1 to 14.7 volts.
Consume cold snack.
Warning: I make no guarantees that this will work and won't blow up your car. Do this mod at your own risk.