Well heres the deal, the 90-91 Integra and the 92-93 Integra are too different creatures well when it comes to wiring that is. That is that hte 90-91 Integra is OBD0 and the 92-93 is OBD1. If you get a ITR motor your best bet is too get an 92-93 vehicle for simplication of wiring due to the fact that ITR motors are OBD2. This means that you will have to take the wiring harness off the integra and put it on the ITR. You can use the ITR injectors by modding your plugs a little bit and you can use the ITR distributor by adding a wire since the OBD2 plugs differ from the OBD1 plugs. Or you can use your injectors and it will plug right in, since both injectors have a flow rate of 240cc just the ITR injectors will be cleaner and newer. If you have a 92-93 GSR the swap will be a lot easier since you can swap distributors as well, but if you have an LS you can swap dizzyz you will just have to modify the LS distributor to line up some bolt holes. Now ECU's you can use the 92-93 GSR ecu with no problems and it will plug right up, if you have an LS you can use either the 92-93GSR ecu(P61), the del sol dohc vtec ecu(OBD1 P30), JDM P30, or you can use the ITR ecu(suggested) but you have to buy a harness adaptor plug(OBD1-OBD2) before you can plug it right up. Also you will want to find a b17a mated cable tranny or b16a mated cable tranny as the cable to hydro tranny would just be a lot more work. I would get a motor, ecu(optional) for under 3500 bucks(you can search around and find it cheaper though)