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need help with d16y8 swap?!?!

Discussion in 'Civic and CRX - EF' started by honda91efhatch, Jan 18, 2008.

  1. honda91efhatch

    honda91efhatch 91 ef/dx project

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    :confused: Hey, im lookin into a d16y8 motor. Wat all would i need 2 swap it into a 1991 dx hatchback that has a d15 non-vtec in it now? Ive looked on several threads but most are about a d16z6 swap, and i kno these motors arent exactly the same! I need help?!? parts list? time? money? sources? any thing and everything will help!
    Thank you
     
  2. honda91efhatch

    honda91efhatch 91 ef/dx project

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    by the way the d15 engine thats in the car now is a 16 valve if that helps any
     
  3. philyphreak2127

    philyphreak2127 Back in the Game

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    you would need the engine, wiring harness, and ecu. your tranny will fit. the intake manifold and all accessories should fit as well. I just did this swap myself except I had a d16y7.
     
  4. honda91efhatch

    honda91efhatch 91 ef/dx project

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    can i run my stock ecu or do i need an ecu thats vtec compatable? wat kind of wiring harness do i need? n where can i get it?
     
  5. honda91efhatch

    honda91efhatch 91 ef/dx project

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    What is the difference between a obd2a and obd2b?
     
  6. YBLEGAL

    YBLEGAL Regular Member w/ Cheese

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    the wiring is different. that's all i know to my knowledge.
     
  7. D15Beater

    D15Beater HNFTuning

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    True....i did the same, but im still obd0. you can keep your stock harness, unless you have a dx, then youll need to do the mpfi swap. After that the motor should fit your trans, use your mounts, youll have to modify the timing belt cover a bit, use the clutch for the trans you use which should be a 89-91 si trans, pm6(wont run vtec) ecu or obd1 conversion harness and a p28 to run vtec. If you keep your harness youll have to run the two vtec wires and there you go.

    The difference in the 2 obd2's is obd2a(1996-2000), obd2b(2001......)
     
    Last edited: Jan 19, 2008
  8. ls/vtechatch91

    ls/vtechatch91 New Member

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    or u can run ur vtec off a toggle... and still keep it obd-0 with a pg7 ecu :)...
     
  9. honda91efhatch

    honda91efhatch 91 ef/dx project

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    off a toggel? that sounds kinda getto! relable?
     
  10. honda91efhatch

    honda91efhatch 91 ef/dx project

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    run the two vtec wires? wat do u mean? jus soder them 2gether?
     
  11. philyphreak2127

    philyphreak2127 Back in the Game

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    I don't think he means solder them together but this is where I am lost. I have yet to wire vtec on my swap. so now I get to learn with you. lol
     
  12. honda91efhatch

    honda91efhatch 91 ef/dx project

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    sounds like fun, i jus picked up the motor 2day! wanting 2 get all my info b4 i attempt the swap!!
     
  13. ls/vtechatch91

    ls/vtechatch91 New Member

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    its not ghetto... my buddy had a mini me in his hf crx plus about 3500 into it... but it was beating gsr's all day long.. not stock one either.... but anyways... he wanted to stay obd-0 so he bought a pg7 ecu from the 1st gen integra... they give u about 10hp more.. than ran the vtec off a toggle.... then u could have vtec anytime u want...
     
  14. philyphreak2127

    philyphreak2127 Back in the Game

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    damn. I love that idea. you should have him do a write up on it in the tech section. It sounds like something I wanna look into.
     
  15. honda91efhatch

    honda91efhatch 91 ef/dx project

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    yea, sounds simple! do a quick write up, i jus got a d16y8 n wouldnt mine the rumble of a low idel vtec! plus it sounds like a quick fix, dont sound like it requires 2 much kno how either! lets hear how 2 do it?!?!
     
  16. ls/vtechatch91

    ls/vtechatch91 New Member

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    i wouldnt recomend having the toggle on under 3k rpms... theres not enough oil going threw it yet.. all u do is hook up a toggle from the selnoid and run it into the cab of the car.... takes like... 10 min if u know how too... but first swap your car to mpfi...
     
  17. philyphreak2127

    philyphreak2127 Back in the Game

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    alright got it. and I wouldn't wanna run it that low. its more of the fact I could turn it on and off when wanted that is so attractive.
     
  18. honda91efhatch

    honda91efhatch 91 ef/dx project

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    wat if you already had a p28 ecu?
     
  19. honda91efhatch

    honda91efhatch 91 ef/dx project

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    theres 3 wires that come off of the vtec soloniod arnt there? how would u manage that?
     
  20. honda91efhatch

    honda91efhatch 91 ef/dx project

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    could you completely surpass any ecu by doing that?
     
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