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hf to ls

Discussion in 'HYBRID -> ED-EF / DA' started by kricket3000, Sep 16, 2008.

  1. kricket3000

    kricket3000 New Member

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    i 88 crx hf and i got a b18a1 to swap, do i use the hf harnes plugs and they will plug into the sensers on the b18 just match the sensers?????
     
  2. efhondakid

    efhondakid My name is Byron. VIP

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    :yes:
     
  3. kricket3000

    kricket3000 New Member

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    thank you sir!!!!! any more advice??
     
  4. D16SiHatch

    D16SiHatch New Member

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    since i just made this post in another thread i'll copy paste...

    -90-93 Integra axles, 94+ pass axle abs,non-abs,auto,manual will also work

    -90-93 integra MANUAL intermediate shaft
    -Ecu conversion harness, rywire
    -DA throttle cable
    -shift linkages (hasport, avid, innovative, ebay)
    -Motor mounts (see above^)
    -90-93 integra rear transmission bracket, must be from a manual

    If your b18a1 is obd1 you'll need to remove your injector resistor box, and solder all 5 wires that went into it together. (4 red, 1 yellow) You could also just opt to use obd0 injectors and then you can retain the resistor box if you so choose.

    You'll need to pry the dust covers off the back of your hubs to make clearance for the axles so they dont bind. You WILL need dx or si hub assemblies. the integra axles will not work with the std or hf hubs.

    You need to extend the fan switch wires from back of the engine to the side of the head which is where the switch is located on b-series engines.

    And lastly you'll need to make clearance for your alternator. The back edge of the pulley on the alt will hit the frame rail if you dont. there is a square shape hole in that area and 2 inches below that you need to bang in with a hammer.

    [​IMG]
    [​IMG]
     
  5. kricket3000

    kricket3000 New Member

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    explain more on fan switch this is frist i have ever heard of that, thanks for the rest of info as well.
     
  6. INJEN78

    INJEN78 HS LEGEND

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    yea me either:confused:
     
  7. D16SiHatch

    D16SiHatch New Member

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    On the d-series engines that come stock in the EF the thermoswitch that tells the radiator fan to turn on is located on the back of the block. On the b18 that switch is located on the coolant junction block on the passenger side behind the head. If you don't hook this up your cooling fan will never kick on.
     
  8. kricket3000

    kricket3000 New Member

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  9. INJEN78

    INJEN78 HS LEGEND

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    i didnt have to do that for mine,,
     
  10. D16SiHatch

    D16SiHatch New Member

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    i was under the impression the b18a and b18b both had to have this done. perhaps its only the b18b because i can guarantee you i had to do this with my car. maybe the b18a has the radiator fan switch on the back of the block. i've never seen one in person to compare to a b18b so i can't say for sure. Plus there is an obd0 b18a 90-91 and obd1 b18a 92-93. perhaps the obd1 version needs this connector moved, and maybe not for the obd0 engine. i can't say for sure
     
  11. b18crxhf

    b18crxhf New Member

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    88-91 CRX/Civic Si/Hf/Ex to b18a (OBD1 LS) OBD0 to OBD1 ECU Conversion Harness
    - Subharness w/ O2 Sensor, plug and play with ECU Jumper.
    - OBD0 to OBD1 Distributor Adapter

    or just the obdo to obd1 Conversion Harness
     
  12. monotech

    monotech Member

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    B18A Located on the Back of the block and B18B/B20B/Z are located on the thermostat housing. Simple fix!
     
  13. b18crxhf

    b18crxhf New Member

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    88-91 CRX/Civic Si/Hf/Ex to b18a (OBD1 LS) OBD0 to OBD1 ECU Conversion Harness
    - Subharness w/ O2 Sensor, plug and play with ECU Jumper.
    - OBD0 to OBD1 Distributor Adapter

    or just the obdo to obd1 Conversion Harness
     
  14. monotech

    monotech Member

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    88-91 CRX/Civic Si/Hf/Ex to b18a (OBD1 LS) OBD0 to OBD1 ECU Conversion Harness
    - Subharness w/ O2 Sensor, plug and play with ECU Jumper.
    - OBD0 to OBD1 Distributor Adapter

    Thats fine if you don't plan on going v-tec but you can always get a V-tec sub harness later. No injector resistor delete is needed if you plan on using your Obd-0 peak & hold injectors.
     
  15. b18crxhf

    b18crxhf New Member

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