Carb swap
Postmaster
Joined: Nov 2011
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From: SW Florida
What I would do is make up a way to read the position of the MLPS and OD switch, then sequence the solenoids accordingly without computer control.
EDIT: the overdrive switch is normally open with momentary contacts. Either replace it with a non-momentary switch or make up a way to store a binary on/off state.
EDIT: the overdrive switch is normally open with momentary contacts. Either replace it with a non-momentary switch or make up a way to store a binary on/off state.
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Elder User
Joined: Jul 2015
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The idea is to make it not electric but I did consider that idea I figured it was possible but mine has a failed solenoid and I'd prefer it be hydraulic anyway I realize it's not the easy way but the point isn't to get rid of the computer but instead the electrical components entirely
Postmaster
Joined: Nov 2011
Posts: 3,533
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From: SW Florida
Ah. Okay. Well I doubt you could just throw a C6 valvebody in there, don't think that would end well and that's assuming you got it to physically fit and bolt in.
Not only does the valve body control shifts but it also regulates oil flow for lubrication and cooling. I'd say there are enough differences between a C6 and an E4 that a C6 VB won't work for sh** in there.
Not only does the valve body control shifts but it also regulates oil flow for lubrication and cooling. I'd say there are enough differences between a C6 and an E4 that a C6 VB won't work for sh** in there.
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Elder User
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I was intending on using the aod or 700r4. The aod seems too small (too much restriction, too little pressure) and I believe the 700r4 wouldn't "communicate" properly (too much pressure here too little there) but I feel if I could use a c6 and electrically engage od that would be acceptable
Hotshot
Joined: Jun 2015
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Ah. Okay. Well I doubt you could just throw a C6 valvebody in there, don't think that would end well and that's assuming you got it to physically fit and bolt in.
Not only does the valve body control shifts but it also regulates oil flow for lubrication and cooling. I'd say there are enough differences between a C6 and an E4 that a C6 VB won't work for sh** in there.
Not only does the valve body control shifts but it also regulates oil flow for lubrication and cooling. I'd say there are enough differences between a C6 and an E4 that a C6 VB won't work for sh** in there.
There are built up AOD (or AOD-E) transmissions out there that could handle the power. Not sure how much over stock you want to go. Years ago a friend of mine ran C4/C5 transmissions in his 10.5 second 1/4 mile Mustang. I would never consider installing Chevy parts in a Ford so the 700R4 wouldn't be an option for me. You would need some sort of adapter to mount it to the Ford engine and transfer case if 4wd. The C6 is a 3 speed so no OD.
Postmaster
Joined: Nov 2011
Posts: 3,533
Likes: 17
From: SW Florida
I was intending on using the aod or 700r4. The aod seems too small (too much restriction, too little pressure) and I believe the 700r4 wouldn't "communicate" properly (too much pressure here too little there) but I feel if I could use a c6 and electrically engage od that would be acceptable
You can't electrically engage OD. It's engaged hydraulically like any other auto transmission. The way the transmission directs hydraulic pressure to the overdrive servo is by using a solenoid. It's probably not even that simple. Rather, the solenoid is likely a pilot valve which directs pressure to one of the shuttle valves within the valve body, and that shuttle valve then moves to direct pressure to the overdrive servo.
Also, how would you control line pressure? The E4OD uses a variable force solenoid to do this, the AOD uses the throttle valve cable, and in the extremely unlikely event you actually get that thing to work, you would also need to install a governor on the tailshaft (like the AOD has). I have no idea what GM's junk uses so no comment there.
I ain't the guy that hears an off the wall idea and says it'll never work, trust me. But when I'm absolutely certain something won't work, to the point MY crazy butt wouldn't even try it, I'll call it out.
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Elder User
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I guess that's it I'm getting rid of the transmission either way
I figured it was worth bringing up in case someone knew enough to figure it out
I still think it'd be cool and maybe ill do some research and figure something out one day
I figured it was worth bringing up in case someone knew enough to figure it out
I still think it'd be cool and maybe ill do some research and figure something out one day
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Elder User
Joined: Jul 2015
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