I am looking at buying a 97 SOHC VTEC to install into an 89 CRX. I was reading to swap how-to on http://hybrid.honda-perf.org/index.html and was wondering how much different this swap is compared to the 92-95 motor they talk about. The motor was attached to an auto tranny and includes all the accessories such as the alt distr ac comp etc. It does not have the wiring harness or computer. If I understand right with out the later model computer and harness I can only swap the block head and distributor and would have to wire up an RPM switch for the VTEC? If I cant locate a 97 harness and computer will a 92-?harness and computer work with the 97 engine and 89 car? Please help I will probably but this engine tomorrow.

 

wiring job from hell!!

 

I realize that but is any reasons why it will not work?

 

you can do this swap only if your car is an Si!!!

if it is..you use the wiring harness from the crx and put it on the 97 motor. you get a rpm activated switch from MSD and hook that up to your v-tec. You use the crx distributor and tranny complete intake manifold.
There is a few other little things you have to do and your set..my friend has a 97ex head on a 94Si/ex block in his crx.
If you got any more questions PM me.

 

do it right. dont use msd switches run the obd1 p28 ecu for correct fuel and timing. It is ALOT of wiring but you get back what you put in.

 

yea but thats a wiring nitemare!!!!!

 

I recently talked to a guy who recommended I just swap the block and head use the CRX intake distr etc and use a Zdyne computer. He said it plugs right into the CRX Si harness and I simply have to run a single wire to the VTEC solenoid. Has anyone used the ECU. Is there a reason (other than easy wiring) for using it instead of the P28. I personally would rather run the newer intake and am not afraid of wiring as long as I can get a diagram of each car. Also it turns out the motor is a 95 not a 97.