Injector sizes for 10 psi

Thinking of running 10 psi on my supercharger, what size injectors do you recommend? Im thinking of getting 315cc injectors with a 255 lph fuel pump. Just looking for some feedback because ive gotten different answers when looking at different posts/comments online

 

Just get an FMU from snpspeed that comes with the correct size plumbing and connectors.
FMU turn’s your stock injectors 260cc into a 340cc injector and works only in booost.
And clean your injector as they has a fuel filter on them and high flow fuel pump

 

I wanted to run a haltech 750, just need the money first

 

I'd go a little higher than 315 if you have engine management. An FMU is a bandaid... An expensive one

 

What cc do you recommend when i do go haltech?

 

Probably somewhere around 450 just so you have some margin

Also with an FMU don't forget your fuel pump has to work harder so possible flow drops, but with a Walbro 255 I don't think you'd be getting into risky territory with these levels

 

Yea I see your selling an FMU, it doesnt let me reply to it though. Just wondering does that only connect into the ecu?

 

That's not an FMU, that's a piggyback. An FMU increases the pressure of your fuel rail, a piggyback intercepts signals from your MAF sensor and crank sensor to modify them for your ECU

 

I was running the FMU before the haltech with stock injectors and now running the haltech with the FMU and stock injectors with duty cycles at 80-90 percent which works just fine