i'll be running 6psi with my jrsc on my b18b1, will i need to get different injectors or will my stock ones be fine?

 

well, it depends on how you're controlling your fuel. be more specific on your setup.

 

i just have a walbro 255 high pressure fuel pump and the jrsc fmu.

 

Stock injectors will be fine @ 6PSI.

 

what about 10psi?

 

I would replace them with larger injectors just to lower overall fuel pressures. 310 would be the largest you can do with no kind of management. if you do the afc hack use 440's or you can use the SMC and 440's we sell both call us
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if u use a hondata s200b, will u need to upgrade injectors? im assuming a set of rc 370's or 440's will be ok.

to be more specific, JRSC at stock boost (6psi??), walbro fuel pump, hondata s200b and rc injectors (370 or 440), stock fpr should be ok?

 

i want to upgrade to 10psi with my jrsc, but i can't get the injectors until another week or so. will i be fine with my stock injectors until then? i have a b18b1 with a jrsc at 6psi, wanting to go to 10psi, 255 hp walbro fuel pump, aem fuel rail, fuel pressure regulator, and i also have the fuel pressure guage under the hood as well.

 

You should upgrade to larger injectors even at stock boost as you are at 100% duty cycle at anything above 6000 rpm in most cases, and only compensating by running rediculous fuel pressures.

If you go with the Hondata (best choice in my own opinion) Get the 440's, unless it's a Prelude, then you need at least 550's. With this setup you can still use stock fuel pressures and be very safe and reliable.