Denso 550cc

[gL3nJaMiN88]

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?

[tridentt150v]

I've got Nismo 555's, no issue with the size, brand I can't say.

[joeyjoejoejuniorshabadoo]

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

[paulr33]

walbro = timebomb

nismo, denso, bosch or tomei for your fuel pump

[Radioham]

I'm aiming for similar rwkw(280~300), anyone know if Denso's a good brand to go for injectors? I'm running Nismo pump atm.

[paulR32gtr]

Yeah Denso are good, OEM on a lot of cars, GTR SARD drop in's are all Denso etc - part of Toyota Group

[KiwiRS4T]

I was making 240rwkw with 550 injectors at 75% duty cycle so I would guess you would make the 300kw OK but might be a stretch to 350kw. Have you got a Z32afm?

[joeyjoejoejuniorshabadoo]

no way that's right... my 555's are on 90% @ 323rwkw on ethanol

[Wheezy]

id want at least 660 to 700cc for that power level to be safe.

and that is what I will be doing when I start using E85

[joeyjoejoejuniorshabadoo]

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

[Dush]

I'm running FIC 1050cc Injectors which I purchased form the US.. I'm also Running E85. I drive an Evo tho..

Curious to know why Walbro's are a time bomb? I have one of them on my car....

[NYTSKY]

Should be fine for pump. E85 id go 740cc.

1000cc FTW