I have used a 400 since 2002. I am to the point I hate it! Yeah, its cheaper and not as fragile as a 200 but is does not fit the TR. When I say it doesn't fit I mean the use of the car as we all fell in love with. I can no longer wake up in the morning and make it to work in the same amount of time as my DD. I am always the slowest moving car on the highway. No overdrive is a drag. The closeest track to me is a 45 minute highway drive on a good day. the normal track we go to is about an hour and 15 minutes away. I always trailer my car now. I can't really defend myself against any high output car in the highway. You are already at 2800 to 3000 rpm with 28" tall tires to attempt to keep up with some of the traffic. Yeah I can out run them to 120 but the car is screaming on a run like that. It's only at home on the 1320!
A trans brake on the street is just for spool and intercooler noise. Try to launch with it and blow the drag radials off instantly. Shifting it contantly in traffic has become a drag especially if you are on the phone or drinking anything. I get a feeling of depression and regret when I get in a TR with a good working 200 even if the car is slower than mine.
It cost just as much to freshen it up as a 200 if your vendor takes care of you. You still need to replace some of the stock parts like the sprag and some other things. You still need the $100 HR mount, have to bend your trans lines up to get them to fit, and a new driveshaft that is not really useable if you go back to the 200.
Oh and you still will have a $900 converter. you will be out of around $3000 when its all said and done. Still sound so cheap? Don't forget the increased line pressure that can destroy your thrust in the crank in short order. This will also have to be addressed
If your car is crossing over to more of a strip car then its a good idea, if you still want to go to car shows that may take more than a half an hour to get to then rethink the choice of a th400. Forget the long trips in the normal travel times. Yeah they had the 3 speeds back in the 60's and 70's but we are in 2010. We have become spoiled with 4, 5 and 6 speed trannys. Also if you do not have "TSM power", heck , even now "TAI" class power, you do not
need the 400.
I am still up in the air about what I want to do. It's a poll in the trans section list some of the popular 200 builders.
I hate to see Lonnie and Chris going at it but it's not the first time I have seen vendor spats on the board. All that billet stuff does not mean you will not break the trans, it just replaces some of the known weak spots. It will cost you in the $4000 range for a good 200 and converter. I'm at work and typing fast so please excuse my errors...
Hope you guys thinking of going to a TH400 find this useful.