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  1. #1
    ski hard and jump high ps dont 4get to hold on
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    whats the diff in injectors

    can some one pez tell me mour about injectors keep hearing about 42 lb and 50 lb what is the diffs and does ecu have to be changed thanks


  2. #2
    ski hard and jump high ps dont 4get to hold on
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    injectors

    come on lads some one must no it cant be that much of a secret lol

  3. #3
    jpeconsult's Avatar
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    No secret.

    The more air you force through the engine (bigger Supercharger), the more fuel you need to add so the air-to-fuel ratio maintains consistent & proper.

    i hope thats what you are looking for, without getting all scientific on you.

  4. #4
    Moderator Snoman's Avatar
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    Quote Originally Posted by peteandnic View Post
    can some one pez tell me mour about injectors keep hearing about 42 lb and 50 lb what is the diffs and does ecu have to be changed thanks
    A 42 lbs injector will flow 42 lbs of fuel in 1 hour,were as a 50 lbs injector will flow 50 lbs of fuel in 1 hour...Therefor the 50s will flow more fuel than the 42s in a 1 hour time..In bigger boost applications you need to give more fuel so you dont lean out the A/F ratios in the motor..Therefor you have to go with the bigger injectors to meet your A/F ratio needs..We do this by installing bigger injectors such as the 50s..The more boost you have the more fuel youll need...

  5. #5
    ski hard and jump high ps dont 4get to hold on
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    thanks

    Quote Originally Posted by Snoman View Post
    A 42 lbs injector will flow 42 lbs of fuel in 1 hour,were as a 50 lbs injector will flow 50 lbs of fuel in 1 hour...Therefor the 50s will flow more fuel than the 42s in a 1 hour time..In bigger boost applications you need to give more fuel so you dont lean out the A/F ratios in the motor..Therefor you have to go with the bigger injectors to meet your A/F ratio needs..We do this by installing bigger injectors such as the 50s..The more boost you have the more fuel youll need...
    thanks for ur hellp

  6. #6
    ski hard and jump high ps dont 4get to hold on
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    thanks

    Quote Originally Posted by jpeconsult View Post
    No secret.

    The more air you force through the engine (bigger Supercharger), the more fuel you need to add so the air-to-fuel ratio maintains consistent & proper.

    i hope thats what you are looking for, without getting all scientific on you.

    thanks mate

  7. #7
    ski hard and jump high ps dont 4get to hold on
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    Thumbs up To all of you

    agen thanks to the chaps for help
    hope this was some help to every one that read post cos it has helped me thanks

  8. #8
    ski hard and jump high ps dont 4get to hold on
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    do you need to change

    Quote Originally Posted by peteandnic View Post
    agen thanks to the chaps for help
    hope this was some help to every one that read post cos it has helped me thanks
    hi do you need to change the ecu wen you put it 50 lb injectors

  9. #9
    ski hard and jump high ps dont 4get to hold on
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    do you need to change

    Quote Originally Posted by peteandnic View Post
    agen thanks to the chaps for help
    hope this was some help to every one that read post cos it has helped me thanks
    hi do you need to change the ecu wen you put it 50 lb injectors in your ski

  10. #10
    Banned User
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    nope, you may need to play with fuel PSI depending on afr's though. but when you change ECU's to say a riva or les for instance you DO need to change injectors depending on what the ecu is mapped for!

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