View Full Version : The "right" torque converter: lock-up or non lock-up

01-31-2005, 12:05 AM
Does anyone have an idea of the best way to go?
My 87' thunderbird (originally a so v-8) has the following:
91' HO mustang parts
comp cams 222' 232' cam
underdrive pulleys (mabye a couple of horse power, ohh boy!)
h-pipe with no cats to side pipes
stock final drive gears (2.73)=crap
91' v6 thunderbird AOD( blew up
the original AOD. I put a transgo hp shift kit in it and that killed it.I must have installed it wrong.)
I want a higher stall speed, so I need to upgrade the torque converter. I've read that a non lock-up is the way to go if i'm going to put in a shift kit. And of course, next time I'm not going to install it. I was going to buy a the same shift kit again.Also, I have a trans cooler put in already because I know that a higher stall speed will increase my trans temp.My main goal with all of this is to have a stock AOD that can handle 300 horse power
and 325+ foot pounds of torque.
So! what is a good choice to go with, lock up or non? stall speed?
solid input shaft? "A" grade servo? aahhh! so confused....

01-31-2005, 07:21 AM
Join the club my transgo kit did the same thing,fedup with them,to complicated.
Going with superior i think.
I got a 2200 lock up and it works great.
Ebay 125.00

01-31-2005, 06:12 PM
Frist off lock up is better on mild car like u have,
Non lock up will do ok as well but will heat the trany up more on highway and when doing pulls.

As for shift kits. trans-go is easy and if u do it step by step the way they tell u its hard to mess up. When u put a shift kit in a tranny that is used for who knows how many miles there is a chance u will kill the tranny.

As for AOD that holds 300hp. I have given up with making a AOD live.
Week point is the input shaft for 3-4 and facts of live with a AOD is harderned shaft
hi-fric clutchs and steels and ram as many extra ones as u can in the drums.

01-31-2005, 07:03 PM
I use a 2600 lockup stall(not enough) with the little Trick Flow cam (221*/225*) and 3.73 gears. With your cam, I'd run at least a 3000 stall and 4.10 gears.

These guys seem to have a good handle on the AODs....


01-31-2005, 08:44 PM
Well, i don't know guys.
looking through the provided instructions it looked easy enough,when i did it ,again easy enough but when installed,smoked a rebuilt trans.
Replaced smoked clutches, double checked all valves and springs again and re tried.
Crappy shifts all over again and smoked clutches even though according to the instructions it was correct.
Got another trans re checked that everything was correct and tried it on the new trans, crappy shifts and erratic shifts.
Took it out and installed all stock springs,ok now.
Being a liscensed tech i figured that this should be no problem but with 4 different same color springs to choose from for just about every valve,it's dam near impossible to select the correct springs for the correct valves.
All i have to say is that i will never buy another trans go product and that they really have to get there stuff together as far as color coding and instructions are concerned.
Also just on a short note for something that makes no sense to me,The 2-3 accumulator piston that says" if you have a steel one to not install the yellow and blue springs" but "if you have the plastic on to install these 2 springs" has got to be wrong.
After my plastic accumulator piston exploded because of the spring pressure,it only made sense to me that this had to be a typo and that you where supposed to installl the springs if you had the steal piston and not install them if you have the plastic one.
Anyways i never tried it and threw the kit in the trash,money well wasted is all i have to say.
If you guys got this kit to work for you,great but mine never did and trans go has lost some potential customers due to my experience.

01-31-2005, 09:24 PM
you had the hp kit with a pamplet of instuctions too? thats the one i got as well. I got mine off of e-bay. Transgo has another kit in the summit catalog that has a video! why didn't we get video instuctions? well anyhoo, I trashed my kit as well. what a waste of money.And i thought i was the only one to have problems with that kit! :brick:

I think I'll try superior's kit as well. It looks pretty good.

02-01-2005, 01:47 PM
Yea it's crap,some guys in here use it and it works for them.
It's got to be that the instructions are incorrect or very vague.
TC50 used the video to install his, and he says it is much easier that way.

02-12-2005, 04:28 PM

anyone tried these guys? If you don't want to assemble a shirft kit they have preassembled valve bodies.