999 lock up clutch wire

glhx said
Mechanical override: Lockup torque converters

This article shows the lock up clutch after 1986 to be activated by the lean burn computer. My transmission is 87 and has this style....

It is controlled by a relay that is ground activated and sends power to the clutch according to its programming......and un activated as it’s called the part throttle unlock solenoid......The older than 86 ran automatic lock up clutches that worked as they should with no computer.

I’m running this type of lock up clutch in my older car with no computer but I would like to use the lock up function.

Aside from the article. Does anyone know if this can be worked to a switch to turn on and off with a relay? Or can I just run power to it and it work automatically......or how to use this without the computer and make it automatically controlled like pre 86

Or is that solenoid just feature where I can turn the lock up on and off at will.

I have a 42RH behind my 5.9 Magnum built to look like an LA motor and used adjustable fuel safety cutoff switches plumbed off the governor test port.

An extra section of trans line runs from my governor pressure port up the back of my bell housing to the two adjustable switches on the back of my intake.
These two adjustable switches control relays to activate and deactivate OD and lockup.
Governor pressure relates very closely to road speed, so I adjust the switches for OD and lockup to engage and disengage at any speed I want.
Currently OD comes on at 60mph and lockup at 75.
Most of the hiways around here are 75 and everyone does at least 80, so my lockup is set to 5mph sooner than 80.
Below 75 lockup automatically disengages, and below 60 OD automatically disengages.

I have two switches on my shifter base to set either or both off, or in automatic mode.
In auto mode it shifts 1-2-3-OD at 60 and lockup at 75 all completely automatic.
With the switches off it shifts just like an A999 low geared first.
With my current rear gears I run 80mph at 2,100 prm and get 25mpg on the hiway with a mild built 5.9 Magnum.

An FYI, lockup will drop the RPM's about 300
And you heard correctly that a non disengaging converter clutch will kill the engine just like stopping with out pushing the clutch. (actually it feels exactly like that)