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  1. #1
    Taking money away from the Z06 Fund
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    Stock Injector Duty Cycle with C3/ET LB/B1 and R2/R3 ECU

    Does anyone have any numbers or monitoring done for the Stock Injector Duty cycle with the following combos on a SHO/FZ ski:

    C3/R2
    C3/R3

    ET LB/R2
    ET LB/R3

    B1/R2
    B1/R3

    I'm assuming the ski has the supporting mods like Filter/exhaust, Upgraded IC, etc. I'm curious what the stock injector duty cycle looks like with the mid level SC wheels and the popular R2/R3 reflashes. I'm wondering if it's better to add the 725 injectors and the R8 ECU reflash to handle the C3/ET LB instead of having to add a RRFPR and/or Powershot with stock injectors and R2/R3 reflashes. Just trying to think of more efficient combos.

    Thanks


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  3. #3
    Orlando Shark's Avatar
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    I don't have those numbers but I can tell you that they are very close to 100% with a C3 and 18LBS of boost.

  4. #4
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    Quote Originally Posted by ImAShark View Post
    I don't have those numbers but I can tell you that they are very close to 100% with a C3 and 18LBS of boost.
    AT what RPM is the C3 making 18lbs of boost? From my understanding the ET LB makes the most at 8500rpms or so, but only 14-15lbs tops. I agree with you though that the stock injectors have to be at least 90% or more with the mid level boost wheels. Hoping someone has some #s as just going by R&D's word doesn't do much for me.

    Thanks

  5. #5
    think he means R3 and 18lbs because he has a turbo..

  6. #6
    Orlando Shark's Avatar
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    Quote Originally Posted by gashog301 View Post
    think he means R3 and 18lbs because he has a turbo..
    Correct,

    Don't have concrete numbers for you but anything over 15 lbs I wouldn't recommend runing stock injectors unless you send them out to get redone and make the spray holes larger. Max i would run on the stockers is 18 LBS on a turbo or charger. One of our customers has been running them for just over 50 hours but who knows....

  7. #7
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    Quote Originally Posted by ImAShark View Post
    Correct,

    Don't have concrete numbers for you but anything over 15 lbs I wouldn't recommend runing stock injectors unless you send them out to get redone and make the spray holes larger. Max i would run on the stockers is 18 LBS on a turbo or charger. One of our customers has been running them for just over 50 hours but who knows....
    Thanks, that makes more sense with the 18lbs and R3. I agree, I'm a little nervous even running the ET LB and R3 with stock injectors. I wish R&D gave out more specific testing facts, then a simple wording of "no need for RRFPR, powershot or injectors".

  8. #8
    Et lowboost at 8750 with watson intercooler 120%. = bomb

  9. #9
    RichieFZR's Avatar
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    Quote Originally Posted by miker1 View Post
    Et lowboost at 8750 with watson intercooler 120%. = bomb
    Miker1 is da BOMB!

  10. #10
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    Quote Originally Posted by miker1 View Post
    Et lowboost at 8750 with watson intercooler 120%. = bomb
    That's what I'm afraid of. With the Riva IC, it can't be far behind. Ugh. I'd like to know how/why R&D keeps insisting its fine with the stock injectors.

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