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Thread: New Injectors

  1. #1
    ArmyRXP's Avatar
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    New Injectors

    Maybe this has been brought up before or maybe not. But I think this might be somehting to look into. These are blueprinted and they also have peak and hold and saturate injectors. Not bad priced either and they might be able to do something for us. Just wondering if anyone has thought of these before.


    http://www.rceng.com/index.aspx


    Gary


  2. #2
    ARNYGOLLOTT3's Avatar
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    What type do we use on our 4 tecs.... peak and hold...or saturated...?

    What style injector do we use...Bosch, Denso, ...something else...?

    They sure do have alot to choose from...hope this leads somwhere...

    Some of these injectors seem to have a minimum operating pressure of 30 psi...maybe this could allow bigger inj in the Turbo setup with the 1:1 fuel regulators...?

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    ARNYGOLLOTT3's Avatar
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    The "techninal page" on that website has some very interesting...but WAY BEYOND ME formulas for the calculation of what injectors to use...for N/A engines, s/c engines, and even turbo engines!

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    Site Admin Green Hulk's Avatar
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    Rude used to use RC injectors with their fuel controller kits, but stopped carrying them because they were too expensive.

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    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by ARNYGOLLOTT3 View Post

    Some of these injectors seem to have a minimum operating pressure of 30 psi...maybe this could allow bigger inj in the Turbo setup with the 1:1 fuel regulators...?
    now that would be nice

  6. #6
    ArmyRXP's Avatar
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    I guess price would come into play .... Jerry maybe you could talk to them and see what you could do and what they could offer?

    Gary

  7. #7
    Website may not be suitable for small children WOT's Avatar
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    There's a great little built in calculator at the bottom of that technical page http://www.rceng.com/technical.aspx.
    Here are the numbers I got for a stock 215 HP 4-tec:

    Crankshaft HP: 215
    Num of Injectors: 3
    BSFC: 0.55
    Max Duty Cycle: 0.85
    Fuel Pressure 60 PSI

    Recommended Injector Size 39.48 LB/Hr

  8. #8
    Website may not be suitable for small children WOT's Avatar
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    Jerry, what did you say stock fuel pressure was without a rising rate regulator?

  9. #9
    Site Admin Green Hulk's Avatar
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    58 psi

  10. #10
    ARNYGOLLOTT3's Avatar
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    http://www.rceng.com/Peak-Hold-Injec...660-P57C5.aspx

    Could these 63# inj with minimum 30 psi operating pressure possibly be used with the Riva ECU, Turbo Kit, 1:1 fuel regulator....?

    Reason I am so interested in this thread is because Jerry had gotten some weird results with the Turbo testing when he turned the 1:1 down to 38 psi with the 55# injectors installed (he guessed that maybe not enough minimum operating pressure for the 55s because he ran lean, 40 psi worked but was too rich down low, I think I have that scenario correct but Jerry will correct if I am wrong here)

    So maybe these 63s and their 30 psi rating with the 1:1 turned way down could deliver the right fuel down low and more fuel...(more power/boost) up high...?

    I don't even know if these injectors will fit our application...still waiting on a qualified person to answer my first questions on this thread...

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