Heres an interesting hybrid question:

how would you go about making a b-series motor run in a 1st gen crx DX(carborated). The car has no computer and only the most basic engine wiring harness. I've seen plenty of info on the Si/b-series conversion, but none on the carburated lower models.

Would you need to wire up your own harness to the ECU? Could you somehow use a B-series wiring harness?

Main reason I ask is the base model 84-87 crx is more than 100 lbs lighter than the Si.

 

You'd have to redesign the fuel system on the car to one that can support the fuel pressure a fuel inejcted system needs and build your own custom wiring harness to support the engine or put carbs on the B18C1.

Carburated cars usually only require <10lbs of fuel pressure and don't use a fuel return line so all of that would have to changed. Also, with no fuel injection currently in the car, all the wiring harness would have to be custom built to support it. Wiring for all the sensors, injectors and whatnot would have to be added, along with the ECU and all the wiring and such to support that. It can be done, people add aftermarket fuel injection systems to muscle cars all the time, but it won't be simple. If your serious about doing it, I have a complete GS-R in-car wiring harness that came with my swap (not the engine harness, but the one that's physically in the car and connects to the ECU) that would probably make your life a lot simplier (at least give you all the plugs you would need). I'm kinda saving it for a goofey Honda powered dune buggy idea I've been kicking around for a few years but will probably never do it. If your interested, drop me an email (elvis312@hotmail.com).

 

thanks, I was more just wondering for reference... If I do it, it will be several years down the road. I figured it would be a wiring nightmare... the hardware part i could manage. Would going stand-alone simplify anything, or not really?