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DX to SI Swap question

Discussion in 'HYBRID -> ED-EF / DA' started by Civic_Tacoma, Dec 29, 2003.

  1. Civic_Tacoma

    Civic_Tacoma Member

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    I got a '90 SI engine to replac my blown '89 DX engine. I need an alternator, and Dizzy for teh SI engine. Can I use my DX alt, and dizzy or not? I need this car to run soon. The new clutch and belts go on tomorrow and then it will be ready to be dropped in. Thanks in advance for the help.
     
  2. Jeef

    Jeef NO MA'AM Moderator VIP

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    Alt yes, distributor depends on is you are running dpfi or mpfi.
     
  3. Civic_Tacoma

    Civic_Tacoma Member

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    I'd like to run mpfi....so I guess I need to find an SI dizzy then.
     
  4. Jeef

    Jeef NO MA'AM Moderator VIP

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    Read up on the mpfi swap, its more than just adding an intake, dist, etc. Its not hard to do.
     
  5. dominicano

    dominicano Junior Member

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    if you wanted to keep it dpfi and just use the dx ecu for right now couldnt i just used the dx intake mani and dizzy on it ? just asking cos i just got an si motor also for my broek down 89 dx and dont have time to do mpfi right now...thanx.
     
  6. Jeef

    Jeef NO MA'AM Moderator VIP

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    Yes you can, change the engine and put your dx intake manifold, distributor and ecu. I ran my z6 like that for a few months. Do yourself a favor and get the mpfi swap done asap. Its a night and day difference.
     
  7. dominicano

    dominicano Junior Member

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    can i use an hf harness to do the mpfi? thanx...
     
  8. Jeef

    Jeef NO MA'AM Moderator VIP

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    You could but its easier not to. You will also have to change wires at the ecu. The wiring sounds hard but if you take your time you can do it in under 4 hours MAX. I did mine in 3 taking my time and drinking in between. You are better off just changing the dx harness and adding a few wires.
     
  9. dominicano

    dominicano Junior Member

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    sorry meant for just getting the plugs and stuff off of it...thanx...
     
  10. jlicrx

    jlicrx Senior Member

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    yes, you can get the plugs you need from the HF harness - should be just the injector plugs - you can use Si or HF distributor
     
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