Finally got a JDM 98' integra ls motor (OBD2). The motor came with no wire harness because of course it was in a RHD car. I have a 93' del sol (obd1) and have my stock harness. Do i need all the listed items below? or can there be an easier way to do this?
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94-01 integra or 99-00 Civic Si front tranny bracket (from any 5speed model)
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94-01 integra rear engine "L" shaped bracket (from any 5speed model)
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94-01 integra driver side 3-post mount (if going B18B/C/C5 - not needed if going B16/B17!)
Note: You can reuse your existing civic/delsol driver side dual-post mount if going OBD2 B16A
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94-01 integra or 99-00 Civic Si A/C bracket
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94-01 integra or 99-00 Civic Si complete shift linkage
Note: Delsol owners must use a B-series delsol shift linkage (rare to find used; best if bought brand new from Honda)
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94-01 integra or 99-00 Civic Si complete axles w/half-shaft
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A U.S. 96-01 integra engine wire harness is a MUST for this type of swap!
This is a key ingredient in getting an OBD2 engine to work in an OBD1 vehicle. The ever so clever Honda engineers were cool enough to make the US OBD2 Integra/Delsol engine wire harnesses backwards-compatible with OBD1 vehicles.
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OBD1 ecu to power the OBD2 engine or an OBD1-> JDM OBD2a/b ecu jumper harness adaptor to adapt a JDM/US OBD2 ecu
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Also.. i bought 97 civic del sol si axles(b16).. this will work, correct?

 

Basically yes, that's the list of what you need. A B-series driver's side mount and bracket (part attached to the engine under the timing cover), as well as the rear mount bracket. For the rest of the mounts, you can use your stock mounts. You will need the Del Sol VTEC shiftlinkage. The axles you bought will work fine.

Now for the wiring issues. Use your stock '93 Del Sol injectors. If your Del Sol is NOT an Si, then use the stock distributor. If your Del Sol IS an Si, then swap the guts of the Del Sol distributor into the one that came with the B18B. If you don't have the stock distributor, then you will need to buy an OBD1 B-series distributor. For the alternator, you will need to swap the voltage regulator from the stock Del Sol one into the one from the B18B. You're basically just swapping the part that has the plug. If you don't have the stock one, you will need to buy an OBD1 B-series alternator.

If you want to use the ECU for the '98 B18B, you will need an OBD1 to OBD2A conversion harness. Otherwise, try to find an OBD1 ECU.