so im swapping an integra B18a1 into my 90 CRX. im looking for a fuel rail and fpr. does anybody know if the fpr and rail must come from the same car, or if the fpr must be a certain obd setup? can i use say a rail and a fpr from different operating systems? like a b17 rail and b18c fpr? thanx. --Jim

 

I'm sure there's a bunch that would work. But B18C has higher fuel pressure than B18A, so you can't use that one.

I don't know the whole list of what's compatible with what else. You need 2 things...
The FPR has to physically screw into the rail (duh).
The fuel pressure has to be correct.

 

Ok, that makes sense. Any idea where I could go/look to get some more info on the subject?

 

if you buy an adjustable FPR, then all you have to do is make sure it mounts to the rail. and get yourself a fuel pressure gauge and mount it at your fuel filter. and adjust it to the factory spec.