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  1. #1

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    et68-140 what size injectors

    what size injectors should I run with a et68-140 charger with stock ecu and stock fuel pump with a rrfpr


  2. #2
    West Texas RXP skoepp's Avatar
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    going to be a tuff tune I would guess.
    Not sure if 50s will be enough in florida?
    If it takes more then 50s your going to have to find way to pull fuel down low.
    Probably going to need a walbro as well.

    PM speedskixp, he will know what you need.

  3. #3
    h2jim's Avatar
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    Quote Originally Posted by skoepp View Post
    going to be a tuff tune I would guess.
    Not sure if 50s will be enough in florida?
    If it takes more then 50s your going to have to find way to pull fuel down low.
    Probably going to need a walbro as well.

    PM speedskixp, he will know what you need.
    +1

  4. #4
    Eastside Powersports Slow 91's Avatar
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    48's here. Rude3 w/ 48's as well.

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    Sturm215's Avatar
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    bosch 48's here also. You'll want more to tune with than the Rrfpr though to get them dialed in nicely. Like a begi or the new commander coming out.

  6. #6
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by Sturm215 View Post
    bosch 48's here also. You'll want more to tune with than the Rrfpr though to get them dialed in nicely. Like a begi or the new commander coming out.
    +1....... and your gonna want a walbro fuel pump also.

  7. #7
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by Slow 91 View Post
    48's here. Rude3 w/ 48's as well.
    Is that with OEM ecu?

  8. #8
    West Texas RXP skoepp's Avatar
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    Quote Originally Posted by Sturm215 View Post
    bosch 48's here also. You'll want more to tune with than the Rrfpr though to get them dialed in nicely. Like a begi or the new commander coming out.
    Is that with OEM ecu?

  9. #9
    Nothin' better than Doo'in it! BigDaddyRXP's Avatar
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    Quote Originally Posted by skoepp View Post
    Is that with OEM ecu?
    Yes... to your second question. Riva Ecu also runs fine here on Bosch 48's with a 68-140.

  10. #10
    West Texas RXP skoepp's Avatar
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    I don't doubt the riva ecu as that is why I asked.
    On 215 ecu what's the pressure set at?
    I am guessing between 60-65 psi on the high end.

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