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B18A1 into EF

Discussion in 'HYBRID -> ED-EF / DA' started by streetsucka, Mar 24, 2010.

  1. streetsucka

    streetsucka New Member

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    ok so i know its possible, im just wondering if anyone knows what kind of issues i might run into when doing the swap from a 5 speed B18A1 into an auto 1990 hatch. reason im asking is that i might pick up a 1991 integra pretty cheap and might try to install the whole drivetrain into my hatch.

    thanks in advance
     
  2. 8secHonda

    8secHonda New Member

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    does ur hatch have a b18 already? if not u gonna need to change the ecu n wiring harness (u may already kno this) . the pedals are hell to change out to from auto to 5 speed. other than that it should all go in smoothly. i think but not sure u may have to change motor mounts.. that is if ur hatch dont already have the b18 in it .. good luck man hope this helps..
     
  3. efhondakid

    efhondakid My name is Byron. VIP

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    Not a hard swap if you have an Si, not that hard with the DX either (just some extra wiring) Search, youll com up with more than enough answers.
     
  4. civichatch1988

    civichatch1988 Ef hatch

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    Well I did same swap I'd go 5 speed but pedals are a bitch butbif you insist on auto just make sure you get the right mounts for the tranny and motor, http://hondaswap.com/swap-articles/dpfi-mpfi-writeup-49557/#post1486864
    just make sure to follow the instructions, I used this write up ( first post ) your also gonna née radiator axles 5 speed hubs and ecu as well as shift linkage, good luck
     
  5. markodublin

    markodublin New Member

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    how yas doin lads nd lasses im jst after buyin a old 91 hatch ef and want to put a b18a into her,any suggestions or tips for me please nd tanks as its my first transplant cheers marko
     
  6. civichatch1988

    civichatch1988 Ef hatch

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    Well first off you shouldn't thread Jack people create your own thread if you have questions
     
  7. blk91b18

    blk91b18 New Member

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    youll need to pull the dash out to get the pedals installed. if your going from dpfi to mpfi youll need a resister box for the injectors. make sure that all your electrical shit matched your ecu. your shift linkage has to be shortened. youll need swap mounts and a swap harness
     
  8. blk91b18

    blk91b18 New Member

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    also in converting from auto to manual have to eliminate nuetral safety switch under the carpet behind the shifter. its a two wire plug that needs to be jumped
     
  9. blk91b18

    blk91b18 New Member

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    also need to switch out the main relay inside the dash next to hood release
     
  10. civicloner22

    civicloner22 New Member

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    wonder how many ef youve work on it took me 5 min to swap the manual pedal with auto pedals
     
  11. Redraptor

    Redraptor New Member

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    im also doing this swap in a 91 crx dx, why is this relay different?
     
  12. blk91b18

    blk91b18 New Member

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    the main relay for the dx, if it has never been swapped to multipoint before, is designed to control only 2 dualpoint injectors.
     
  13. efhondakid

    efhondakid My name is Byron. VIP

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    The ECU controls the injectors, not the relay.
     
  14. blk91b18

    blk91b18 New Member

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    it still needs to be changed out though.
     
  15. civichatch1988

    civichatch1988 Ef hatch

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    i have a 88 civic hatch cx (base model as they come) and i never touched the relay
     
  16. jlicrx

    jlicrx Senior Member

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    the main relay in all of the 88-91 CRX/Civic cars (DPFI or MPFI) is the same - Honda part no. 39400-SH3-003
     
  17. Redraptor

    Redraptor New Member

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    ok, so i dont need to switch out the relays, thanks
     
  18. blk91b18

    blk91b18 New Member

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    k so i had to swap out my relay because my car wouldnt start after the swap. swapped relays and fired right up
     
  19. crxsib18a1

    crxsib18a1 New Member

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  20. Redraptor

    Redraptor New Member

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    sunds like your relay went bad during the swap; if the part numbers are the same for these cars then the realy had to be bad if replacing it solved the problem, i'll try it without changing the relay and hope it goes ok.
     
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