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| Exqsme |
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Hi all,
I need to replace the 3 speed auto in my NA. Just wondering if a 4 speed from an ea would bolt straight on? Any problems I should know about? Cheers! |
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| Exqsme |
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Anyone?
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| TimmyA |
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I'd think it'd bolt straight on... I don't know much about the 3 speed... Bit before my learning experience (I own an ED)... Do they have a separate transmission controller or are they a manual box?
Controlling the 4 speed will be the difficult part... Depends whether you can fit the transmission controler, or if it isn't separate the computer to control the 4 speed... Just for the record, a manual would be a hell of a lot easier... With my limited knowledge of the EA I'm not sure how you'll go about it... Cheers, Tim
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| slow_6 |
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{USERNAME} wrote: I'd think it'd bolt straight on... I don't know much about the 3 speed... Bit before my learning experience (I own an ED)... Do they have a separate transmission controller or are they a manual box? Controlling the 4 speed will be the difficult part... Depends whether you can fit the transmission controler, or if it isn't separate the computer to control the 4 speed... Just for the record, a manual would be a hell of a lot easier... With my limited knowledge of the EA I'm not sure how you'll go about it... Cheers, Tim I can finally be of some use To fit a BTR into a early EA you will need the trans computer as the BTR has a separate computer , and a newer ECU would say as the 3 speed's ECU is just like a manual ECU Also you will need to fabricate a new rear mount for the box cross member as they do not fit as the chassis is slightly different under neath on the mounting points I would say EL ECU with a J3 tune in auto mode , and then install the complete BTR computer and loom and get it physically mounted and go from there |
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| slow_6 |
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while on topic what does timmy reckon , would it be straight bolt in once the rear mount is sorted
All that would be needed would following the loom from a EF/EL and relocating it into the EA and running a different ECU with the wires needed in place plus the BTR computer , if two cars side by side shouldn't be to hard ? two cars side by side = pick a part remembering how it all went lol |
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| Exqsme |
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Hey guys.
Thanks for all the replies, very much appreciated! So it'd be simpler for me to just replace it with another 3 speed? Think that's what I might end up doing. 
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| slow_6 |
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{USERNAME} wrote: Hey guys. Thanks for all the replies, very much appreciated! So it'd be simpler for me to just replace it with another 3 speed? Think that's what I might end up doing. ya except i dont know how you would go finding a good condition 3 speed Also having a BTR wouldn't save that much fuel with 4th gear its over rated lol |
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| cjh |
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{USERNAME} wrote: Hey guys. Thanks for all the replies, very much appreciated! So it'd be simpler for me to just replace it with another 3 speed? Think that's what I might end up doing. Yep.....the diff ratio will be 2.77 as well.....doesn't go real good with a 4sp BTR tranny.
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| Exqsme |
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Alright, sweet.. 3 speed it is.... For now.....
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| slow_6 |
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I would like to hear more from members regarding how difficult it would be as the old 3 speed EA's would be going to waste with out this BTR conversion sorted the knowledge
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| SWC |
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{USERNAME} wrote: while on topic what does timmy reckon , would it be straight bolt in once the rear mount is sorted All that would be needed would following the loom from a EF/EL and relocating it into the EA and running a different ECU with the wires needed in place plus the BTR computer , if two cars side by side shouldn't be to hard ? two cars side by side = pick a part remembering how it all went lol No good using an EF loom as they are different to EA/EB/ED/EL |
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| cjh |
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{USERNAME} wrote: No good using an EF loom as they are different to EA/EB/ED/EL You reckon using an EA 4sp auto loom and TCU be easier ???....thats my thought.
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| Mad2 |
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{USERNAME} wrote: {USERNAME} wrote: No good using an EF loom as they are different to EA/EB/ED/EL You reckon using an EA 4sp auto loom and TCU be easier ???....thats my thought. yeah ya could use wiring loom from a say 90/91 EA or buy the 3sp box i have here lol 
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| Exqsme |
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Haha, working alright? And what would you charge for it?
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| slow_6 |
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{USERNAME} wrote: {USERNAME} wrote: while on topic what does timmy reckon , would it be straight bolt in once the rear mount is sorted All that would be needed would following the loom from a EF/EL and relocating it into the EA and running a different ECU with the wires needed in place plus the BTR computer , if two cars side by side shouldn't be to hard ? two cars side by side = pick a part remembering how it all went lol No good using an EF loom as they are different to EA/EB/ED/EL What would you suggest in your opinion to fit a BTR to a 3 speed EA ? |
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