1992 SC400 Tranny upgrade?

[jibby]

This is my first post on this forum, so hello to all... My question is- I have a completely restored 1992 SC400 sporting over 400HP, as I climb the hp latter I realise the stock transmission capacity has reached it's limits. What can I do to give it 200hp worth of additional strengh? I am aware of the Supra V160 manual tranny swap but I really enjoy the automatic transmissions. Any suggestions? I am thinking the tundra auto tranny might be a possibility if it could hold up?

[dallase46]

I wonder if the auto from the last gen Supra would work?

[sinaster74]

how about trying a tci th400 or a 700r4 or the 4l80e all of which are automatic. ive heard of the th400 on a supra with a different bell housing.