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Thread: Are all RPM's the same?

  1. #41
    Scarabjet
    Mike J.
    There are 2 of us "Scarabjets" posting.
    I would definetely be interested in the tapes and any other material you may be willing to pass along.
    Please let me know of any costs involved and I'll be more than happy to forward you a check prior to delivery.
    Thank You!
    Rick

  2. #42
    Mike J.
    Yes Dave @ Legend was involved but most
    of the design and Development was done at
    Team Scarab by Warren Robbins and since
    there were only TWO people at team scarab
    I had my grubby hands in it to.
    The Original SCARAB Jet Pump was a new
    design with a all new Intake, My boat
    still has one of those intakes but I
    Made a adaptor ring so I could use a
    Legend Bowl and Impeller.
    I will try to send some Photos from my
    Office computer and if you would please
    post them.
    Thanks Mike J.

  3. #43
    LVjetboy
    MikeF and Dave, could it be that...
    "More <blade-vane> clearance causes more turbulence and recirculation in the flow between the blade and vane = loss in thrust?"
    The pump now less efficient in converting impeller flow to nozzle flow velocity?
    jer

  4. #44
    Scarab Jet
    Mike J.,
    If you want to send me the photos of your jet pump, I'll be glad to post them for you. I am interested to see if it is the same intake as mine. Because mine is also the original intake but has a black ring with the Legend pump attached to it. I am not sure who did the work but when I bought the boat, it was already modified. I'll also be interested in seeing a picture of the original bowl (if you still have pictures of it). Any rate here is a picture of mine.
    [img]http://free.***boat.net/gallery/Reader_Rides/Jet_Boats/Jet_pump-profile.JPG[/img]

  5. #45
    Scarab Jet
    Yup, the 4.3 V6, it runs great and I can get it to around 48 mile/hour, but can certainly use MORE POWER. I don't think I can fit a 350 in there since I only have about 4 or so inches before I hit the gas tank.
    Scarabjet:
    Scarab Jet,
    Are you still running the stock motor in yours?

  6. #46
    Infomaniac
    bump for first page of archive

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