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  1. #1
    joeblo's Avatar
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    1390 Triple piper

    Am puling ski down getting ready to go from 1200cc bored out to 1300cc triple piper,am wanting to go the full hog 1390BB triple pipe but seems a lot of people have been steering me away from it and that not many have been done before,could you please advise me on the doo,s and donts on going the 1390 triple pipe,
    My ski will have porting machining by Lowel
    Trued & welded crank
    VF3 reeds
    protec manifold
    FP triple pipes
    Riva bomb Mikuni carbs
    Riva gas valves
    155psi
    Riva billet head with domes machined by Lowell
    and all the fast bolt ons
    The ski is a Riva lightened Hull from Riva
    05 Pump
    MSD total loss

    What do you think this ski should run top speed
    Last edited by joeblo; 08-17-2006 at 09:32 PM.


  2. #2
    ABBOTT's Avatar
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    Hard to say what it will do. There are so many things to consider. Either way it should be an 80 + boat without a problem. Usually, from what i hear is that you have to learn the "don'ts" right after it blows up.

    There will probably be some tripple savvy people chime in to give you some things to look out for. You will more than likely be fine, but will have to really pay close attention to the boat and show it some love. The tripples seem to be more tempermental than any of the single pipes.

  3. #3
    ABBOTT's Avatar
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    Oh yea, i see in your signature "Riva Lightened Hull"----what exactly is that?? Or how is it lighter?

  4. #4

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    I've seen one, its from a Superstock Riva boat. TCR could tell you more.

  5. #5
    joeblo's Avatar
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    A riva lightened hull is about 50 pounds lighter than stock ,it is not a hull purchased as a recreational ski from a dealer,it is purchased from riva built by riva as a special,i dont think you can buy them anymore,they use them for super stock boat hulls,it hink they take 1 layer of skin of the boat and clean up all the excess glue in the hull,
    so what do you think 1390 triple or 1300 triple

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