You should look into the 4R with the Baumann controller. I think the name changed recently. It is probably the best compromise you will find. It retains lock up and automatic operation and can shift by rpm or speed or by push button.
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That's what I have now.You should look into the 4R with the Baumann controller. I think the name changed recently. It is probably the best compromise you will find. It retains lock up and automatic operation and can shift by rpm or speed or by push button.
Hopefully I'm not asking a dumb question, but won't you run into a similar issue with the 6R80 once you are out of 4th gear? To the best of my knowledge you don't really want to run high power through any overdrive gears no matter what the trans.
Wouldn't your best bet be to just change the gearing in the rear of your car? I know it will hurt your 60' on the launch but you will be able to wind out 3rd much longer.
The 6R has way better ratios that allow a lower rear ratio that can further be reduced with the overdrives for driving. The 6R is the best automatic that Ford has ever made. It's hellastrong.
More axle ratio, if you can hook it, will help the 60'.
After seeing the other comments on the steep 1st gear, it may require both swaps to get what I want. I have 4:10s now and cross the line at about 7200 rpms with the 4r70w. I have some 3:73s here I could test out. They will never make 200 mph though. Maybe a 6r80 and some 3:55s or 3:31s would be the best of both worlds. That is my thinking anyhow.Hopefully I'm not asking a dumb question, but won't you run into a similar issue with the 6R80 once you are out of 4th gear? To the best of my knowledge you don't really want to run high power through any overdrive gears no matter what the trans.
Wouldn't your best bet be to just change the gearing in the rear of your car? I know it will hurt your 60' on the launch but you will be able to wind out 3rd much longer.
Yeah, 3.31 would likely be the winner and they are cheap. I suppose the 3.55 are cheap also as you can barely give them away. I make a crap load of torque down low too.. so that would be an advantage too. IIRC you have your VCT locked out also Billy?
Where can one find a 6R? I really hate doing things twice and a 4r now and 6r later would really suck. Not looking for Texas mile stuff, and don't go to the track near as much as I drive it on the street. If that was the case I would already have a th400
I will most likely buy a new unit from Ford if I do it. Vct is locked but I have a 3800 stall.
One thing to keep in mind is, the only reason I am thinking of the swap is high speed pulls. I can run 140 in 3rd as I set now. I am ready for more though. Lets just say, it doesn't make my hands shake like it used to after a pass at the track.
I don't understand why the no OD comments on the 6R. I've used all 6 gears on the mile before.
Ken B break something in the transmission at the mile this Spring?
Not to hijack the thread but Billy, I think it would be cheaper for you in the long run to put a 9 inch rear in the car. It would give you the added benefit of a stronger rear and you could run 2 complete center sections. One with gearing for the strip and one for the Mile. It isn't a big deal to swap out center sections on a 9 inch.
I think this would be a much better way to go than trying to make the 6R work, with your power levels and cheaper also.
Earl
The engine isn't anywhere near done at 7900, sucks that the PCM quits.
I was thinking this when I was going to bed last night. Lots of options I guess. .