Torque converter lockup

[Alanrlow]

Anyone had experience modifying their torque converter to manual lockup? I have a 1997 80 series 1FZ-FE, A440F auto and I would like to know which wire, what colour, where it's located etc. I have a relay schematic ready to go I just need to know what wire to tap into. Anyone done this?
Cheers,
Alan.

[ats4x4dotcom]

Ring Rodney at wholesale automatics in Bayswater Vic, as he has a wiring loom and switch which makes all this work very easily, as well as temp sender fittings bolt in for auto temp gauge, and also does better convertors, with better lock up linings, better torque multiplier, and a great valve body set up to suit the cruiser auto.

Tell him Darren at ATS told you about the set up, when you call, great bloke to deal with.

[Oneputt]

I have an electronic version fitted to my auto 80 and to be honest I have rarely used it. Initially I lacked confidence in low low on steep descents so fitted the lock up. The problem with it is, if I let the revs drop too much on steep descents then the engine cuts out, and that is not very pleasant. I now have much more trust in low low

[franku]

I have an electronic version fitted to my auto 80 and to be honest I have rarely used it. Initially I lacked confidence in low low on steep descents so fitted the lock up. The problem with it is, if I let the revs drop too much on steep descents then the engine cuts out, and that is not very pleasant. I now have much more trust in low low

What do you mean by an electronic version?

I have Rodney's Switch which uses a relay that splices into the AUTO ECU - is that what you mean?

Mine wont stall the car though... almost - but it wont stall it.

[Oneputt]

I mean that in order to engage the lockup I have to flick a switch, ditto to disengage.

[franku]

I mean that in order to engage the lockup I have to flick a switch, ditto to disengage.

Have you done any other upgrades like the extreme valve body kit?

so, if you are driving along the road, lock up the TC and then stop at a set of lights - your engine will stall?

[Oneputt]

Yes the valve body kit was installed at the same time, and yes if at any time I let the revs drop too low with the lockup on, she stalls.

[franku]

That is only if you have the extreme valve body installed.

I you install just the lock up relay kit, it wont stall as it wont lock up in 1st.

[diby_2000]

Wouldnt 1st be the gear u would want to lock up? eg. locked in low range 1st gear for a steep decent?

[franku]

Depends what you want it for....

If it is to reduce auto temps when towing and reduce auto wear and improve engine braking in general - then no.

If it is for better engine control on very slow speed hill decents where 1st low is not slow enough - then yes.