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  • 01-25-2022, 09:35 AM
    scensor
    12 Attachment(s)
    Seadoo 1165cc triple port 8mm stroker
    Hello friends,


    just wanted to share my latest build with you.
    credits to my friend Brad Nickerson who’s helped me all those years collecting parts and of course as he is the guy who reproduces miller products with Ron.

    You can check my YouTube channel for running videos, more to come
    soon weather is not good lately.

    https://youtu.be/LjmYNcFvaik

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  • 01-25-2022, 11:33 AM
    JC-SuperJet
    1 Attachment(s)
    Re: Seadoo 1165cc triple port 8mm stroker
    Question regarding Photo #10 of the Exhaust Port:

    At the Bottom of the Exhaust Port, there is a "Step" caused by the Sleeve to Cast misalignment. Did the Sleeve get ported & blended to the Cast or is this how it is currently running?

    I ask because a "Step" will reduce Flow Performance...

    Attachment 572003
  • 01-25-2022, 02:38 PM
    scensor
    Re: Seadoo 1165cc triple port 8mm stroker
    So great question both my 6mm and 8mm triple ports have it. And this engine specific came like this after miller changed sleeves. No it’s not a mismatch, it’s like this due to the extra ports won’t create enough pressure in the c. Chamber thus they make main exhaust with this at bottom side to stop loosing lows. Highs you won’t loose any rpm from that. And also due to the stroke if you remove it piston skirt won’t cover that spot. Due to the 4mm piston going higher.
  • 01-25-2022, 05:29 PM
    wmazz
    Re: Seadoo 1165cc triple port 8mm stroker
    Nice looking engine!

    Did you have the 8 (long) cylinder studs custom made, or was that
    something Miller made?


    Quote:

    Originally Posted by scensor View Post
    And also due to the stroke if you remove it piston skirt won’t cover that spot. Due to the 4mm piston going higher.

    IMO, this is more important. All kinds of problems occur on reed
    engines (depending on the engine) if that gap is too big.

    But the miss-match of the piston @ bdc to the exhaust port (sleeve
    height) is something Kawasaki featured on the 1986 KX250. But in this
    case (KX) the entire exhaust port was shifted upwards ~4-5mm.




    Bill M.

    Are those Boost Bottles (connected to the intake) in the picture
    2nd from the bottom?
  • 01-26-2022, 06:36 AM
    scensor
    Re: Seadoo 1165cc triple port 8mm stroker
    No these are miller made studs !!!!
  • 01-26-2022, 04:35 PM
    wmazz
    Re: Seadoo 1165cc triple port 8mm stroker
    Finding new studs for the PJS Super Cylinder was difficult
    (impossible), I thought if they were custom made you might
    have a source (vendor) for other studs.


    Bill M.
  • 07-05-2022, 09:21 PM
    800X-4rider
    Re: Seadoo 1165cc triple port 8mm stroker
    Any idea on power?


    Sent from my iPhone using Tapatalk
  • 07-07-2022, 04:07 AM
    scensor
    Re: Seadoo 1165cc triple port 8mm stroker
    Depends on pipe, compression i run and fuel :)
    low to 210 up to 240
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