E4OD Compatibility
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E4OD Compatibility
I am looking for an E4OD tranny to put behind a 460 motor. I know about the controller issue, but if I can buy a E4OD from a 5.4 motor cheaply, it will be worthwhile.
The question is: Will an E4OD transmission from a 5.4 motor mate to a 460?
The question is: Will an E4OD transmission from a 5.4 motor mate to a 460?
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From: Delaware
Post Fiend
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The transmission will have to be from a big block motor but not a diesel.
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
The E4OD and 4R100 look VERY similar. The picture isn't good enough for me to be certain, but I think I can see the turbine speed and output speed sensors on the trans. The 4R100 has both of these, the E4OD does not have either.
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I found another E4OD on Ebay, but it has the small block bell.
It seems that there are three varieties of E40OD transmissions.
Small Block, Big Block, and Diesel.
There is also a V10 version, unless that uses the same bell as one of the others.
It seems that there are three varieties of E40OD transmissions.
Small Block, Big Block, and Diesel.
There is also a V10 version, unless that uses the same bell as one of the others.
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Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
There are three as you mentioned. The V10 pattern is different from any of those three, but there never was a V10 E4OD. It became the 4R100 when it was mated to the 5.4L and 6.8L V10. The V10 and 5.4L have the same pattern.
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From: Delaware
I am writing a program in 'C' code to run on an ARMmite Processor Board. It's function is to emulate an EEC-IV EFI Motor Controller. I am able to do this, because I have some detailed information about the workings of the EEC-IV.
Writing code for an E4OD controller should be a much simpler task than an EEC-IV engine controller, but I have no information about the Control Functions for an E4OD.
What sensors does it use, and what are the outputs to the transmission.
I know it monitors the Throttle position, but what else?
What are the outputs? Are they just gear selections?
Writing code for an E4OD controller should be a much simpler task than an EEC-IV engine controller, but I have no information about the Control Functions for an E4OD.
What sensors does it use, and what are the outputs to the transmission.
I know it monitors the Throttle position, but what else?
What are the outputs? Are they just gear selections?
Frmr Ford Trans Engr
Joined: Aug 1999
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From: SE Florida
Actually I think you'll find that the transmission code is at least as complex as the engine code. At least that was my experience at Ford working with both engine and trans codes.
As for inputs, the trans uses pedal position, engine RPM, vehicle speed, engine temperature, transmission temperature, transmission range (the sensor on the driver's side of the trans,) plus it calculates an engine torque from the engine control software. This torque is used to calculate the required electronic pressure control.
The outputs are on/off states for both shift solenoids, electronic pressure control, and torque converter lock and unlock.
As for inputs, the trans uses pedal position, engine RPM, vehicle speed, engine temperature, transmission temperature, transmission range (the sensor on the driver's side of the trans,) plus it calculates an engine torque from the engine control software. This torque is used to calculate the required electronic pressure control.
The outputs are on/off states for both shift solenoids, electronic pressure control, and torque converter lock and unlock.
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In the days before dirt, when an automatic transmission downshifted, it was because the kickdown lever connected to the throttle linkage by a rod was moved to a certain position. Upshifting was controlled by fluid pressure caused by the engine RPM, but the vacuum modulator would prevent the upshift until more fluid pressure from higher engine RPM ocurred.
Throttle position is now sensed by a TPS, and engine vacuum is measured by a MAP sensor. RPM can be sensed by a Tach signal.
Load can be determined from throttle position and manifold vacuum, by a table. Load along with RPM can be used to shift an automatic transmission to the proper gear by another table.
I am just about finished writing my 'C' program for the EEC-IV engine controller, but I don't have an immediate need for an EEC-IV engine controller.
I might need a Transmission controller for an E40D to connect to a 408 cubic inch 'M' block that I am building. I am thinking about writing that code. I need some documentation on the signals required by an E4OD tranny.
Throttle position is now sensed by a TPS, and engine vacuum is measured by a MAP sensor. RPM can be sensed by a Tach signal.
Load can be determined from throttle position and manifold vacuum, by a table. Load along with RPM can be used to shift an automatic transmission to the proper gear by another table.
I am just about finished writing my 'C' program for the EEC-IV engine controller, but I don't have an immediate need for an EEC-IV engine controller.
I might need a Transmission controller for an E40D to connect to a 408 cubic inch 'M' block that I am building. I am thinking about writing that code. I need some documentation on the signals required by an E4OD tranny.
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Postmaster
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From: Delaware
I bought a 2WD E4OD that fits a Small Block gas motor on Ebay, cheap. I think that I may have a lead on a cheap 460 E4OD 4WD. The 2WD tranny is supposed to be in good condition, while the 4WD tranny was in a fire.
I am planning to swap cases, if possible.
Other than damage to the 4WD drive tranny case, is there any reason that I can't swap cases between these two transmissions?
Are there any upgrades that I should consider, while doing the swap?
I am planning to swap cases, if possible.
Other than damage to the 4WD drive tranny case, is there any reason that I can't swap cases between these two transmissions?
Are there any upgrades that I should consider, while doing the swap?
