Originally Posted by
Snoopy
the p28 is just more easily found for relatively cheap. you can use almost any obd1 ecu.
Right, but not as easily found or cheap as a DX ECU...
The ECU has to be VTEC in order to run a VTEC motor...
The P28 Civic EX/Si was the cheapest and most easily found Honda with VTEC, so that is why it is most often used...