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i just purchased some DENSO 19550-2240 and was wondering if they will be enough for an RB25 putting out around 300-350RWKW With a Walbro 255 and SARD FPR , running on PowerFC Pro ..

Just wanted to know if anyone else are running these injectors and do they have any issues with duty cycle at those power levels ?

I did search , but i couldnt find anything?

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fuel supply is incredibly important... ditch the walbro and get a decent pump, also the FPR is not needed.

i run my rb25 to a lil over 320rwkw on e85 (which requires ~30% more flow than 98) with the stock FPR, a nismo intank pump and nismo 555cc injectors

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  • 1 month later...

if you're shooting for ~350rwkw on e85 you will need ~700's...

guilt's nismo 740's ran out of head room @ 370rwkw on CSR ethanol, although he probably could have gone a few killerwasps more if he was running the manildra ethanol

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