The newer autos like 4R70 and 4r100 use a locking torque converter. I had a factory tech valve body in my 4r100 and took it out because it didn't do anything to make the tq lockup quicker and firmer. I then ran a tuner (custom tune) in conjunction with my VB but had trouble to get both in sync with eachother and peform the way I wanted it. (got a bump ocassionally) In stock form the TQ lockup strategy just feels like crap and is slow too boot. Making the lockup quicker and firmer reduces trans temps and helps the trans to last longer. Not to mention it performs better also. I'm going to go to a local trans shop thats done work for me in the past and see what they can do for me mechanically. I think I need a "shift kit" along with an on/off lockup valve but have to ask them about it. I'll still use the tuner just keep the trans set to stock parameters. I'm not a trans expert or anything just saying from experiences I've had with mine and trying to correct it.
so i can correct it with a tuner or will i need a diferant converter??
however i just heard on the mustang forum that with some work you can make a c4 full auto behind a 4.6... you need a universal lokar cable like "havi" mentioned and you can make that work by adapting it to the spot on the throttle body for the cruise controle.. i have to keep looking and varifie i can do that, if so i mite be able to use my c4 afterall. but on another hand having overdrive would be a plus......
The TC lockup is controlled by the PCM, so a tune should be able to make that happen faster. As for "firmer", not entirely sure, but I'm sure it's possible. I know with my '96 t-bird 4.6 w/Superchips, shifts were firmer (upped the pressure during the shifts only) and the TC lockup was more noticeable, but then I had a 3.73 rear in that thing too.
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- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Warn hubs Volant CAI, eBay headers and y-pipe - 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see.
I've changed all my shift schedules and TC lockups with my PRP tuning program because I switched to a 4.88 rear gear. If you do use the 4R70 put a better TC in it.
If you use the 4R70W & want quick , hard , tire spining shifts use the B&M street / strip shift kit . If you use a tuner or have a chip burned for it you can adjust all the up & down shifts , line press , adjust the TC . I use the stock TC & the stall is 1900 rpm... Lew
ok, after a week of asking dum questions and checking the four corners of the county i finally think things are ookin up.. i found a guy with a rearended 1992 lincoln t-car with a good running 4.6 and a good tranny for 200.00. i want to go get it but i think it mite have an AODE in it not a 4R70W.. is there any way to tell the diferance easy. thanks
Checked some things, and that might even be just an AOD, not an AODE. See if it's got the big electrical connector on it.
Would a non-electronic AOD be better for your application if it was built right?
__________________
- art k. - Moderator for the Superduty, V10, and FE forums
'01 F250SD SC SB XLT V10 4x4 auto 3.73 Warn hubs Volant CAI, eBay headers and y-pipe - 5-star custom tunes on SCT X3
'97 Cougar XR7 30th Anniv Edition 4.6L
'74 F250 Highboy FE390 deceased! I've been wrong before, I'll be wrong again. Just wait and see.
The AODE and 4R70W are beefed up and an overal improvement over the AOD so I'd say the AODE would be better than the AOD. Plus with the AODE and 4R70W you can use a locking torque converter. An AOD should probably be torn down and built up a little for the 4.6l.
If you do use an AOD , swap in the gear sets from a 4R70W into it will help alot , stronger & better gearing . Are you using a computer that will run an electronic controled trans ???? Lew
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