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Thread: 7900 Rpms Wtf!

  1. #1
    BlaZinMJ's Avatar
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    7900 Rpms Wtf!

    ok i am only seeing 7900 RPMS and 68.3 with the mods below....do you think my prop needs to be tweeked? i am kind of disappointed at that number. i should be seeing 70mph or so right?


  2. #2
    FIRED!!! JP's Avatar
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    just throwing out an idea:
    Isn't the 14/19r too tall for a stock RXP? That would explain the lower RPMS.

    Here's my vote, but wait for the prop folks to chime in...
    Plan A: Buy my 14/17r
    Plan B: Maybe try taking a couple of MMs out of it???

    JP

  3. #3
    JFizzleJR's Avatar
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    i suggest you check your supercharger health

    if everything is alright i then suggest you tweak your prop

    a 14/19 is perfect for a stock to stage 2 minus intercooler rxp

    a simple custom air intake could be the fix

  4. #4
    BlaZinMJ's Avatar
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    my sc shuld be fine, jerry changed the washers about 5 rides ago...i was seeing 7850 the day i put my sc in from jerry, i think he told me to tweek the prop

  5. #5
    Nonstop, all day, everyday. 01xdime's Avatar
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    Mike, you need to come see me and we'll get it straight. I think we could take 2mm off that prop and have you running fine.

  6. #6
    Prop is definately the problem. A 14/19 is too steep for what you're running. Either repitch it or replace the stock sc intake with a front 3", front 4", or rear 4".

  7. #7
    BlaZinMJ's Avatar
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    Quote Originally Posted by 01xdime View Post
    Mike, you need to come see me and we'll get it straight. I think we could take 2mm off that prop and have you running fine.
    we'll make some plans for about 2 weeks....how does that sound? i appreciate your help bro

  8. #8
    Nonstop, all day, everyday. 01xdime's Avatar
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    Thats cool, i'll get with you later in the week and we'll set something up. PM me with your number.

  9. #9
    Site Admin Green Hulk's Avatar
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    Air intake (preferably rear air) and -2 mm on the trailing edge will have you flying

  10. #10
    Fast & Loud meeper's Avatar
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    dont do anything till you check your oil!!!

    i was turning the same with my mods and my oil was way overfilled....that will deff cause a loss of RPMs....

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