I have a 92 VX with a 99 B18C1 swap. I swapped it last April and it's ran 100% since then without any problems. I still have my VX fuel pump which I'm sure is pretty weak compared to the GSR pump. I bought an APEX-i VAFC and I'm getting an air/fuel gauge to monitor things. I was interested in upgrading the fuel pump and possibly get an aftermarket fuel pressure regulator.
Are there any other stock fuel pumps besides the GSR that will work in my car, like a 99-00 Si, Integra LS or even the Type-R? I would even consider an aftermarket one if I knew it was worth the extra $ but I'm not sure which one would be good for my setup.

 

I think all of those you mentioned will work. you can try posting at the hybrid forum maybe they can help you there.

 

Type R fuel pump will work. You're better off going aftermarket unless you want to shell out more for a stock pump.

 

oem , type R should be fine