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hey guys

i've got an r33 rb25et

i am looking at getting a nistune in the near future. with either a rb25 highflow or atr43 (hypergear direct bolt up)

i've already got all supporting mods, bosch 040, z32 afm, , fmic, 3.5 inch turbo back, splitfires

i'm tossing up with either getting a set of s15 injectors (480 cc i think )?

or sr n/a highflows (700cc)

i think that the s15 injectors would have a better spray pattern, and keep my economy down a bit?

i haven;t heard too much about the highflowed injectors, is anyone using them?

just want people's opinions about both of these injectors

do the high flowed injectors have a bad spray pattern? they might be a bit overkill for my application

cheers

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s15 injectors are around 480cc (turbo manual) and you want highflow them to 700cc? are you sure?

i dont see why you would bother and risk it with crap highflows? wouldnt it be easier to get drop in nismo 550cc's ?

How much are the nismo 550cc injecters?? or as a cheap upgrade would the rb26dett injecters be better then stock? my next question is should you upgrage injecters just before you go for a tune or can you put them in without a tune!

i am just thinken of the near future!

How much are the nismo 550cc injecters?? or as a cheap upgrade would the rb26dett injecters be better then stock? my next question is should you upgrage injecters just before you go for a tune or can you put them in without a tune!

i am just thinken of the near future!

nismo 555s are usually around 800-1000 for a set.

26 are top feed, 25 are side feed, no can do.

change them just before a tune, what ecu do you have?

i have a rb25det s2 ecu, is there a cheaper option other then the nismo 550cc?

i have a rb25det s2 ecu, is there a cheaper option other then the nismo 550cc?

you cant run bigger injectors on a standard ecu. if your planning to get it chipped or nistuned then do it all at the same time. if you get something like a power fc you can change them whenever you like and change the injector settings

just watch out on NS.com buy 2x sets of 4s

I've seen them go for like $200 for all 4

People with idle problems with larger injectors are usually caused by bad tunes & or injector settings, my car idles on stoich, cruises on stoich, and I get around 400km to a tank city driving @1.bar boost the best I've got was like 520km from full to fuel light.

may be a stoopid question, but what is the cheapest way of buying 6 x s15 injectors seeing as they come in sets of 4.

and usually ppl want seperate.??

or are u planning on buying 6 new oneS?

buy 3 sets, and sell the spare 6 to someone else

I bought 2 sets of 4 S15 injectors off ebay for $450 all up

so Ive got 2 spare; grab a set of 4 for $250 and pm me for these 2 . . .

the 450/480cc s15 injectors work a treat on a midly modified engine (ie same mods)

currently awaiting a set of 550cc siemens rb26dett injectors from ebay, $360 new delivered.

(for my track car)

:D

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