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crx bseries swap help

Discussion in 'Civic and CRX - EF' started by hades1998, May 25, 2008.

  1. hades1998

    hades1998 New Member

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    i need some advice on a bseries swap into my 90 auto crx dx..
    here is a list of parts i have.
    93 ls head and intake
    90 auto ecu
    stock gsr headers
    96 obd2 ls longblock/w intake,injectors

    now a little more about what im lookin to do with this swap. im lookin to replace my stock motor with a stronger motor.dont need to be the fastest...just a little faster than normal.i think im going to keep the car an auto... im use to rewiring motor harnesses to get things working properly....thanx
     
  2. hades1998

    hades1998 New Member

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    anyone have some advice on getting a b18b1 obd2 engine into a 90 crx dx.....like what harness,wiring that needs to be done....im a first time honda owner....
     
  3. drummingpariah

    drummingpariah Author of the Madness Man

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    I'd suggest a DPFI to MPFI conversion, then either converting the engine to obd0 (distributor is the important part) or getting the obd1 conversion from rywire and an obd1 ecu. I just noticed the rywire harness includes the DPFI to MPFI conversion! Rywire - Online Store
     
  4. hades1998

    hades1998 New Member

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    crx wiring

    so the wiring kit will allow me to use what i have listed?:confused:
     
  5. INJEN78

    INJEN78 HS LEGEND

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    no...you have a little of eveyrhting..obd0.1.and 2...you need to get everything of one of them
     
  6. drummingpariah

    drummingpariah Author of the Madness Man

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    What you've got:

    • CRX DX wiring harness: Dual-point fuel injection (DPFI), obd0
    • b18b1: Multiple-point fuel injection (MPFI), obd2
    • 90 pr4 ecu: obd0 Integra ecu
    • b18a1 head and intake mani: obd1 (b18a1 obd1 versus b18a1 obd0)
    • GSR headers: may not fit, vtec heads are shaped differently than nonvtec heads, exhaust ports may not line up.
    What I suggest:

    • CRX DX wiring harness, converted to MPFI
    • rywire harness from obd0 to obd1
    • obd1 ecu (pick your flavor)
    • b18b1 block
    • b18a1 head + intake manifold
    • b18a1 exhaust manifold
    • custom cat-back exhaust (I haven't found a premade exhaust that fits correctly)
    sell/trade everything else.
     
  7. hades1998

    hades1998 New Member

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    ok i see thanks for all the help
     
  8. hades1998

    hades1998 New Member

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  9. drummingpariah

    drummingpariah Author of the Madness Man

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    You own a p75, an obd1 ecu. The p3 came after your car.
     
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