i getting ready to have a b18a in my 1990 dx hatch and i got the ecu,shift linkage and some other and do i need to have the motor mounts for it too... i did some little resreach abt it and i seem cant find the diagram for the wire hardness i need some help and i'n new for this
thanks

 

and my dx donbt have the dx wire system it has the wire from the 91 si

 

http://hybrid2.honda-perf.org/tech/4gdxtozc.html

this will work

 

wire hardness 15lb/ft ounces.

 

if you have the wiring harness from an Si, then you don't have shit to worry about, its just plug and play. yes you need the motor mounts to do the swap. Hasport or Place Racing will hook you up. Its going to be about $300 where ever you go though, unless you can steal a set from somebody. Oh, and don't forget new axles, the axles on your d16 will be too long...

 

oops.. didn't really read your second post... if your car is already wired for an si there is no difference...no changes at all from si harness to b18a

 

alright thanks guy so just plug in it and go