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Adding turbos

Discussion in 'Viking Yacht' started by Capt Butta, Dec 25, 2013.

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  1. baltimore bob, Dec 30, 2013
    #21
    baltimore bob

    baltimore bob Member

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    We will have to agree to disagree on that one. I have run naturals with 60,70 and now 80 injectors, and while the differance at speed was noticable, I never noticed any differance at lower speeds either in preformance or smoke.
  2. Bill106, Dec 30, 2013
    #22
    Bill106

    Bill106 Senior Member

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    Except maybe a pair of 1271"s? :D
  3. PacBlue, Dec 30, 2013
    #23
    PacBlue

    PacBlue Senior Member

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    They sound twice as good!
  4. Marmot, Dec 30, 2013
    #24
    Marmot

    Marmot Senior Member

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    They inject a smaller amount of fuel over a longer period (mechanical injection) and the rapid reduction in fuel velocity through the spray hole is why the spray pattern is distorted.
  5. Capt Ralph, Dec 30, 2013
    #25
    Capt Ralph

    Capt Ralph Senior Member

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    I don't think were talking big exotic injectors here.
    Help me out on my theory assuming N60 to N90;
    The small N injectors use the same timing (1.460) height. The rocker & external plunger travels the same distance & speed. The chamber in the injector is larger in diameter. The rack (governor controlled) manages the same load & rpm, making the same power.
    The only difference is the internal plunger delivers the same fuel faster & complete transmission a tad quicker? Same volume, wider bore, less stroke, less time for delivery?
    Or, am I bass ackwards somewhere?
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