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Thread: Injector Constant help.

  1. #1
    Tuner in Training
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    Injector Constant help.

    Hey guys i Put 36lb injectors in my 2005 eco which had 24 lb injectors stock. I know the equasion is supposed to be 24/36but it always comes up with .66666666666 when its suposed to be smaller than the stock.170*******. Can anyone come up with the proper value?? thank you

  2. #2
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    Quote Originally Posted by turb02cavi
    Hey guys i Put 36lb injectors in my 2005 eco which had 24 lb injectors stock. I know the equasion is supposed to be 24/36but it always comes up with .66666666666 when its suposed to be smaller than the stock.170*******. Can anyone come up with the proper value?? thank you
    Whats your stock injector constant?

    the equation is: Stock injector constant x (old injector size / new injector size)

    So for me would be: .17800 x (24/42) = .10700 or something like that i cant remember..

    I have 42lb injectors btw..


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  3. #3
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    Mine is also .17800 i have an eco. I see you on ecotecforum all the time. But yea Its also .17800. Ill try it out. tHanks alot man!

  4. #4
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    Does .11333333 sound right?

  5. #5
    You take stock injector size (24lb) divide by new injector size (36lb) and times that by stock injector constant. For my on my 2.4 LD9 it was 24/36=.6666666 times .20250=.1349999/ Hope this helps.

  6. #6
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    Quote Originally Posted by turb02cavi
    Does .11333333 sound right?
    Yeah that sounds about right..


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  7. #7
    Tuner in Training
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    ok so i changed it to .113333 and using JMH's info to double check it. It idles perfect now. Wideband used to sit at 10.0 haha now it goes between 14.5 and 14.9 which seems pretty good to me. Thanks guys alot!