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  1. #1
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    Default SR20 injector Size?

    What is the CC size of the stock SR20 fuel injectors? i want to replace with some new one.. help me out what do you think?

  2. #2
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    279s irrc.

    what set up are you gonna be running and i can help you pick a good inj/size.

    stratton.

  3. #3
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    Ve injectors are 333cc btw de-t are 370cc
    NO TINT CREW MEMBER # 1
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  4. #4
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    DE is 259cc (more sizes/whp output)
    00 G20t KH3- Loller Rocker + GT28 + 6 Speed
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  5. #5
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    okay i have a fwd non turbo sr20 does that matter? also my car is all OEM at this time and only plan on bolt on mods...

  6. #6
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    Quote Originally Posted by wink View Post
    okay i have a fwd non turbo sr20 does that matter? also my car is all OEM at this time and only plan on bolt on mods...
    259cc. They are good for 200whp, which you will never hit with bolt ons so you have nothing to worry about.
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  7. #7
    irish GTIR
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    try 444cc stock gtir injectors they will be a good upgrade for you

  8. #8
    SR20DE "TEAM NISMO"
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    Just wonderin...wat u guy thing about the purple inj... R they good or not!!!

  9. #9
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    if i put 444cc injector. what would that do as in performance? and will i have any problems..

  10. #10
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    Quote Originally Posted by HOTSNOT92 View Post
    try 444cc stock gtir injectors they will be a good upgrade for you
    Worst idea ever.

  11. #11
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    thats why i asked...problem right??? anyways i guess i need to put the stock size injectors then right? thx for your help guys..

  12. #12
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    This thread is full of fail, Vadim is correct on stock injector size and his recomdenation. People who have no idea shouldn't recommend anything.
    SR20 infant

  13. #13
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    lol ..... So the stock injectors 259cc are the recommended..right?

  14. #14
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    For an all motor setup your good with the 259cc..... If your planning on boostin you will need to up injector sizes
    NO TINT CREW MEMBER # 1
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  15. #15
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    yes you are good with stock injectors

    The guy who recomended the GTi-R injectors is either being sarcastic or is just and idiot
    1990CRX SOHC Vtec, reliable DD
    1992 SE-R, blown DET

  16. #16
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    thanks man for info.. so now next question is there a brand of injectors that are sort say top shelf..lol. i dont want some bunk injectors...

  17. #17
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    Man but why do you want to change injectors on a stock motor with bolt ons?
    If you change injector size you will have to at least add a piggyback to the stock ECU or use a nistune or Calum, or go standalone.
    But the stock ECU will not be able to handle by herself bigger injectors, and you do not need them
    1990CRX SOHC Vtec, reliable DD
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  18. #18
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    Unless you want to get a new ECU, keep 259cc injectors. If you want better performing ones, get brand new ones or send yours out to be cleaned and flow tested.

    Everything else is a waste of money that wont gain you any hp. More fuel does not equal more power, you need cfm (air) with more air to make more power.
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  19. #19
    SE-R = Money-pit
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    Vadim is right. With a N/A motor, the engine is literally sucking air in as fast as it can. This is limited by many things like: MAF sensor, throttle body, intake manifold, runner size, cam lift, etc.. Even with bolt-on parts, your going to have change A LOT for the engine to be capable of sucking in the amount of air that will justify the need for larger injectors.

    Turbocharging forces air into the cylinder. More air than the engine would be capable of drawing in on it's own. And all that air needs fuel. So that's why the need for larger injectors is more important with a turbo car, and not so much with N/A.

    For you to draw in the ammount of air that will require larger injectors, your looking at things like: opening up the intake runners or a larger manifold, porting and polishing, larger throttle body, some pretty healthy camshafts, valve grinding and polishing, velocity stacks, overboring the cylinders for larger pistons, longer stroke rods or crank, and more stuff I'm sure I'm forgetting.
    Last edited by NightStalker; 05-31-11 at 01:31 AM.
    96 200SX SE-R

  20. #20
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    do injectors go bad or out?

  21. #21
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    now this is the info i was looking to get.. thanks

  22. #22
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    If injectors go bad or out you will notice for sure, not to say that 150k mile injectors are going to be perfect. You could have them cleaned and flow tested if you are really concerned about the quality of your injectors. You are way over thinking bolt ons, do some research and go from there.
    SR20 infant

  23. #23
    Jimi
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    Quote Originally Posted by Vadim View Post
    259cc. They are good for 200whp, which you will never hit with bolt ons so you have nothing to worry about.
    The 259 injectors are good for about 175whp, and to achieve that your going to need all bolt ons and a little internal work... then if you decide your going for more or possibly the duty cycle is near 100% and your going to upgrade your ecu id upgrade to 333cc(VE injectors) or 370cc(DET injectors)....


    To answer your question, if you hqve a bad injector you would be.ok with replacing it with a used one Nissan injectors are.pretty good and don't go out too often....
    Last edited by NissanGuy; 06-01-11 at 07:58 AM.
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  24. #24
    Shouldnt make headers
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    wink: are you having any issues with your car? or just asking questions?
    New forum for you.
    check out Finalspeedgarage.com or our Facebook and LIKE us
    S13, B13, P11, (T)A60, R35 :bigthumbup:

  25. #25
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    well my car is running okay , but sputters from 2nd to 3rd a little. dont really know what the issue is.. i took it down to get smogged and it didnt pass.. the guys said my cat is no good. but i think he is blowing smoke up my A**.... need to take some where GOOD to get an honest look at...do you know of anywhere local>>>

  26. #26
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    in the process of changing out all my vac hoses today.. i have all factory hoses with cracks. hope this is part of the problem...

  27. #27
    Shouldnt make headers
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    Ya bring it to me haha I'm the local guru haha pm me your number
    New forum for you.
    check out Finalspeedgarage.com or our Facebook and LIKE us
    S13, B13, P11, (T)A60, R35 :bigthumbup:

  28. #28
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    sounds good dude>>>>>> i"ll PM you the #

  29. #29
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    Quote Originally Posted by NissanGuy View Post
    The 259 injectors are good for about 175whp, and to achieve that your going to need all bolt ons and a little internal work...
    Thanks for the correction, I must have been thinking in 4 bar numbers . Even though 370cc injectors are still cheaper then an Adjustable FPR
    00 G20t KH3- Loller Rocker + GT28 + 6 Speed
    05 Legacy GT - 5MT + Invidia Up + Downpipe
    04 Forester XT - 5MT + STI Up Pipe
    03 Spec V - Parting out Now

 

 

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