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| snapper |
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hello everyone i am new on this i just want to ask a question i am pretty confuse . my car is na ford ltd 1988 model 3.9 transmission is 3 speed auto no overdrive on my car now but had no reseved ! i was thinking about change transmission to 4 speed auto with over drive .but i was told wont fit cos my car dont have overdrive button and wire ? i went to see my meacical he said wont fit cos of overdrive and wire loops ! then i went to see other fews mechical they said is will fit on my car some said wont fit could anyone help with this pls pls pls pls need HELP many thank
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| cjh |
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The diff ratio in your car will be a 2.77:1......and the 4sp auto ones were either 3.08:1 or 3.23/3.27:1. You'll need the wiring harness and the little auto ECU for it.
The only benifit with fitting the 4sp auto would be better take off, as the 3sp &4sp auto's have the same 1st gear ratio...about 2.39:1 .
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| snapper |
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thank for reply cjh need to ask you question where is wiring harness in motor or in dash board or what is the little auto ECU for it?. sound like a massive big job to fix it ? do i need to change diff ratio too ? thank again
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| lukey1990 |
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Hey mate, the V8's weren't an option on the NA's, and only the V8's have a transmission computer. The 6 cylinders are controlled by the ECU, so you'll need a new one.
Any automatic multi-point EFI ECU from an EBII to ED, maybe EBI, not 100% sure. Or you could get an EL ECU, I've been told they have impoved shift points and will also be able to controll thermo fans and a BBM, if you plan to grab them at a later date. If you're after better acceleration you should get the 4spd gbox and a new diff, something like an XR which is a 3.45 LSD. Also the NA series are Fairlanes, if your car is an E series '88 LTD it would be a DA.
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| 67RCE |
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cjh wrote: The diff ratio in your car will be a 2.77:1......and the 4sp auto ones were either 3.08:1 or 3.23/3.27:1. You'll need the wiring harness and the little auto ECU for it. The only benifit with fitting the 4sp auto would be better take off, as the 3sp &4sp auto's have the same 1st gear ratio...about 2.39:1 . not quite right cjh, the 4 speed also has 4th as an overdrive. You basically need to get a wrecked 4spd car to do the conversion
_________________ ILL60 - EF XR8, Sunroof, Ticky Kit, 19x8.5/19x11 TE37's, 347, AFr185's, TFS BoxRcustom converter, Hurst Quarterstick, huge billet cam. |
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| LP_ |
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lukey1990 wrote: Hey mate, the V8's weren't an option on the NA's, and only the V8's have a transmission computer. The 6 cylinders are controlled by the ECU, so you'll need a new one. Any automatic multi-point EFI ECU from an EBII to ED, maybe EBI, not 100% sure. EB1 6 cylinders had the separate Automatic transmission computer. So an EB1 ECU will not be suitable |
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| lukey1990 |
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LP_ wrote: lukey1990 wrote: Hey mate, the V8's weren't an option on the NA's, and only the V8's have a transmission computer. The 6 cylinders are controlled by the ECU, so you'll need a new one. Any automatic multi-point EFI ECU from an EBII to ED, maybe EBI, not 100% sure. EB1 6 cylinders had the separate Automatic transmission computer. So an EB1 ECU will not be suitable Yeah I wasn't too sure about the EBI's. Cheers for the info
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| cjh |
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67RCE wrote: cjh wrote: The diff ratio in your car will be a 2.77:1......and the 4sp auto ones were either 3.08:1 or 3.23/3.27:1. You'll need the wiring harness and the little auto ECU for it. The only benifit with fitting the 4sp auto would be better take off, as the 3sp &4sp auto's have the same 1st gear ratio...about 2.39:1 . not quite right cjh, the 4 speed also has 4th as an overdrive. You basically need to get a wrecked 4spd car to do the conversion I said the 4sp & 3sp autos share the same 1st gear ratio......so in early E series that had 3sp auto, were fitted with a 2.77 diff.........when they went to 4sp autos, they changed diff ratios to either 3.08 or 3.23/3.27's....so they would have better take off.....OK????
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| cjh |
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LP_ wrote: lukey1990 wrote: Hey mate, the V8's weren't an option on the NA's, and only the V8's have a transmission computer. The 6 cylinders are controlled by the ECU, so you'll need a new one. Any automatic multi-point EFI ECU from an EBII to ED, maybe EBI, not 100% sure. EB1 6 cylinders had the separate Automatic transmission computer. So an EB1 ECU will not be suitable The auto ECU was separate till the EF came out, in the EF they made it part of the engine ECU....the EF ECU had 106 pins......the EB/ED has 60 pins. The auto ECU lives on the right hand side of the steering wheel, behind the instrument cluster.
_________________ http://youtu.be/jJTh9F3Vgg0 |
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| Froudey |
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LP_ wrote: lukey1990 wrote: Hey mate, the V8's weren't an option on the NA's, and only the V8's have a transmission computer. The 6 cylinders are controlled by the ECU, so you'll need a new one. Any automatic multi-point EFI ECU from an EBII to ED, maybe EBI, not 100% sure. EB1 6 cylinders had the separate Automatic transmission computer. So an EB1 ECU will not be suitable EAII until ED had the seperate TCM snapper wrote: hello everyone i am new on this i just want to ask a question i am pretty confuse . my car is na ford ltd 1988 model 3.9 transmission is 3 speed auto no overdrive on my car now but had no reseved ! i was thinking about change transmission to 4 speed auto with over drive .but i was told wont fit cos my car dont have overdrive button and wire ? i went to see my meacical he said wont fit cos of overdrive and wire loops ! then i went to see other fews mechical they said is will fit on my car some said wont fit could anyone help with this pls pls pls pls need HELP many thank If your car is a NA 3.9 if you got a loom and TCM and ECU (EAII to EBI MPFI) you should be sweet, all you would need to do the conversion in total would be the 4speed BTR, 4speed tailshaft, transimission mount, and the loom and ecy & tcm meantioned prior. As you havn't got smartlock you shouldn't have any issues with bems and alike.
_________________ R.I.P Tobias my son. Last edited by Froudey on Thu Aug 20, 2009 10:32 am, edited 1 time in total. |
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| cjh |
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snapper wrote: thank for reply cjh need to ask you question where is wiring harness in motor or in dash board or what is the little auto ECU for it?. sound like a massive big job to fix it ? do i need to change diff ratio too ? thank again You will need the harness from the dash assembly and the tranmission harness to, as well as the engine harness ( different switch & connector for the TPS ). A diff ratio change would be benificial.
_________________ http://youtu.be/jJTh9F3Vgg0 |
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| Froudey |
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them pictures um don't look like the Transmission Control Modules I have pulled out over the years. (unless there is a tcm and a BEM like thing.)
_________________ R.I.P Tobias my son. |
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| LP_ |
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EBII to EL 6 cylinders do not have the separate TCM only the V8's
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| Froudey |
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LP_ wrote: EBII to EL 6 cylinders do not have the separate TCM only the V8's you sure it was only the 8's?
_________________ R.I.P Tobias my son. |
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| LP_ |
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Froudey wrote: LP_ wrote: EBII to EL 6 cylinders do not have the separate TCM only the V8's you sure it was only the 8's? Yes have helped work on the following 2 EBII, 1 ED six cylinders that have the ECU only 1 EB1 six cylinders had separate TCM now runs a EL Ghia ECU only |
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