External Power Supply Harness For Autos

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Rockabilly

Well-Known Member
Joined
Jan 30, 2006
Messages
874
Location
Sydney
Many have asked about wiring for autos. A friend & I have come up with a user friendly setup.
Available through me now is a small harness for external power supply for 4 speed autos.
It has a 2 second delay up & down for if 4th is accidentlly left on!
Meaning if 4th is on & you shift 2nd into 3rd, 3rd will engage for 2 secs before 4th engages.
If you are in 4th & you pull Drive/3rd into 2nd, 3rd will engage for 2 secs before 2nd engages.
The same safety feature that an RVR TCU uses, but done with 2 delay boxes & relays.
It has a reverse light plug (suits rego). Only starts in P/N
2 plugs plug into the factory Inhibitor plug & the solenoid plug.
2 plugs plug into the starter.
1 plug for the factory reverse light plug.
A toggle switch on 2m of twin wire for 4th with a red light on it. < Only wiring in the car.
A 4mm Power & Earth. A 2amp fuse inline on the power wire. Only draws 1amp in 1st. A+B solenoids on.
Just shift the gears manually. No auto mode.
#Note: Running this system is for 100% trans fluid line pressure constantly.
There is no blue wire involved for the pressure control solenoid.
This setup can be run on my boxes no prob.
If used on a standard auto, it's at your risk.
A factory TCU setup is kinder on std boxes because it bleeds off line pressure to save the box.
Can be run with a push button switchbox.
Aldo
 
If you have a shiftbox it's as simple as 2 momentary connections. You can make a shifter out of a Logitech gaming shifter/paddles, or alternatively you could run a ratchet shift like a B&M using the shift cables with a switch for 4th

I have 2 buttons for shifts on the underside of my steering wheel ready for my conversion to auto w/shiftbox, I'm using 6 core coiled CB cable so I will have the option for scramble boost or nitrous if I need.
I used these ↓↓
http://www.jaycar.com.au/Electromechanical-Components/Switches/Pushbutton/IP67-Rated-Dome-Pushbutton-Switch-Black/p/SP0656
 
If you don't have tcu the ratchet shifter won't work Ben.
Unless Aldos box allows for that?
My shiftbox has a 4th gear lockout and downshift protection as well.
Not the cheapest option though!
 

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