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New Fuel Injectors

gcg7861

By gcg7861,
in Engines & Forced Induction

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gcg7861 Community Regular

gcg7861

Posted
Posted

Hi everyone,

I'm looking to buy new Fuel injectors.

However i don't know much about them, as in what size i need to buy to suit my car.

I currently have a Greddy 550hp Fuel pump, yet im not sure if the current injectors are stock

or aftermarket.

Could somebody give me advice on how i can find out which size injector to buy and what i

should look out for, as i have a friends friend selling Tomei 555cc injectors, for RB25.

Thanks :)

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gcg7861 Community Regular

gcg7861

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how much power u want to make.....

my car is currently sumwhere between 230-260kw i am estimating, from the previous owners claims.. haven't yet got it on the Dyno.

But what would you recomend is a reliable power gain, that won't cause engine damage.

I was thinking, 10-15kw?? or is that unrealistic??

Would it require a full engine re map??

gcg7861 Community Regular

gcg7861

Posted
  • Author
Posted
yeh those 555cc should be good i think as im running the same but 600cc in my gtr and hoping for 300awkw..pfc would be good also get her tuned..although remap could do the trick \...

Oh, for the short term, i was looking at around a confirmed 280Rwkw, as there isn't much more i cant get without a rebuild...

So this might sound stupid, but the injectors can pretty much be set anyway right?? but they're max capacity is what 555cc puts out? so i could buy 555cc injectors and still set it below there potential , to suit my engine?

paulr33 Grand Master

paulr33

Posted
Posted

the state of the tune will decide on engine damage

get the tune checked by a good local tuner with an AFR plot to see how the car is setup

they should then recommend where to go from there to make it safe

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