ok some of you guys may have noticed that i was in need of a motor. Well i got a good deal on a dx motor for my crx. the problem is that i want the power of an si. my question is: What parts do i need to pull off of my si motor to make the dx motor MPFI???? and does it all bolt up??? basically i have an si motor and a dx motor and i want to make the dx motor run just like the si (MPFI), how do i do this??? thx

 

resistor box, complete si intake manifold (rail fpr injectors evac all sensors and coolant lines, tbody etc) si ecu, si dizzy or equivilant, HAS to be a obd0 7 pin dizzy not the 5 pin ones) and the dx to zc wiring diagram


[Modified by TorteX, 2:27 PM 9/4/2002]

 

and since in generouse w/ info send me your si cam =P

 

haha.......no
but thx for the info. BTW where can i get a dx to zc wiring diagram??? thx again

 

i also have another question. My car originally came with the si motor because it's an si. If i put the dx motor into it do i still have to rewire something even if i put the si IM and fuel system on it??? thx

 

yeah youd have to wire it back to dx and use the dx ecu and get rid of the resistor box, dizzy and manifold. hybrid-perf.org (something) has the diagram

do the above if you want to use the stock dx motor w/ manifold. other wise you can do dx motor and si manifold and dizzy (same as wiring for the si motor)


[Modified by TorteX, 2:38 PM 9/4/2002]

 

i think as long as you use the si intake manifold and injectors you won't need to rewire anything.

 

and dizzy and ecu correct


[Modified by TorteX, 2:39 PM 9/4/2002]

 

so let me get this right. all i need to get this dx motor into my 89 crx si is:
-IM and fuel system onto dx motor
-dx motor
-si distributor
-si ecu

and if i put the dx motor in my car with the si IM and fuel system i won't need to rewire anything, right??? thx

 

yes and resitor box

 

but the resistor box is already in the si engine bay right? oh and will my si tranny work with the dx motor?

 

ah yes if you hve an si its in there, hes si trans bolts up to dx motor. transfering of axles and hubs is NOt needed

 

search for your answer, here i will tell you what to type

DPFI-MPFI that should bring a lot of results