Non lock up cruising question

[stack1]

I've done alot of searching but I can't seem to be able to get clarification on this. We all know that non locking up with a lock up converter will eventually ruin the tranny at highway speeds. But is it less damaging to run a non lock tranny and converter since the conversion kit allows more fluid flow? Would adding a tranny cooler make a difference? I don't do much highway driving but I'd like to have some insurance to know that I'm not ruining anything by driving around too long.

 

[moose]

I would also like to know the answer to your question, i just converted mine to a 10" 3200 non lockup Art Carr and wondered the same thing. I did the pump mod and it's working great but i am curious about long trips also.

 

[bmackinnon]

Running a non-L/U convertor doesn't hurt the tranny a bit.... however it WILL make the trans. run quite a bit hotter... so if you run one, you would be wise to invest in a GOOD trans. cooler if you plan on long runs. If you run the stock trans cooler/oil cooler/radiator, it will make the engine oil run alot hotter too, which of course, pushes on the water temp as well.... for comparison on my mostly stock car (well equipped with gages...)

on a hot day/long trip (stock converter, stock coolers, 185 thermostat) on the highway:

locked: water=185, trans=210, oil=240
unlocked: water=200, trans=250, oil=285 and scary rising on looong uphills...

just my experience....

 

[moose]

Running a non-L/U convertor doesn't hurt the tranny a bit.... however it WILL make the trans. run quite a bit hotter... so if you run one, you would be wise to invest in a GOOD trans. cooler if you plan on long runs. If you run the stock trans cooler/oil cooler/radiator, it will make the engine oil run alot hotter too, which of course, pushes on the water temp as well.... for comparison on my mostly stock car (well equipped with gages...)

on a hot day/long trip (stock converter, stock coolers, 185 thermostat) on the highway:

locked: water=185, trans=210, oil=240
unlocked: water=200, trans=250, oil=285 and scary rising on looong uphills...

just my experience....

Thank's for the info, i do have an aftermarket cooler on mine.