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duel point verses multiport

Discussion in 'HYBRID -> EG-EK / DC' started by pdqcrx, Feb 9, 2006.

  1. pdqcrx

    pdqcrx Member

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    I have a 1989 crx dx with duel point injection. Going to put a d16 out of a 1988 si in it. Will the horsepower difference between the intake manifolds be worth the wiring problems. Want it to run to its potential but face facts its still a d-series and I'm really just in it for the gas milage. Would I just have to wire the injectors and swap out ecu's. Tried to search it but couldn't get a hit. Thanks.
     
  2. tylonalsnifnfool

    tylonalsnifnfool Senior Member

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    Are you swapping motors or just making your 1.5 MPFI?
     
  3. EGProject

    EGProject YEEEEAAHHHHH

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    Since he said hes putting a D16 in it - that he means a motor swap.

    Motor will physically drop in, but wiring will need to be done for the injectors, manifold sensors and the like. I think you may also need a resistor box for the injectors, since the SI had them. Difference should be worth the work. The D16 block will allow you to do a VTEC minime swap later on, and also opens the door to boost.
     
  4. Silvershadow

    Silvershadow Junior Member

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    Performance wise:Convert over to MPFI.You'll probably notice very little in the lower rpm band.It's all in the mid to high rpm band.For real pick-up you'll need the Si tranny, but that conflicts with your next point.

    pdqcrx
    For gas mileage:
    a)MPFI Conversion will make very little difference. [​IMG]
    [​IMG] Don't put in Si tranny.Will kill your MPG,but will have good acceleration. [​IMG]
    c)Taller Narrower tires will make a bigger improvement than MPFI. :)
    d)For the biggest jump in mileage.Put in CRX HF tranny.You'll see up to 10 MPG improvement. [​IMG] but your acceleration will suck.The caveat is now you can do 50mph in 1st gear like them Ferrari's. :mrgreen:

    The link to the DPFI toMPFI:
    http://www.hondacivicwagon.com/board/viewtopic.php?t=79

    Mini me swap can be done on the DX D15 block.
     
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