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  1. 10-30-2022, 08:08 AM #1
    LOSTINJ
    LOSTINJ is offline Team Member
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    Hydro-tec tuner for 300xs ?

    Picked up pair 2005 250xs gold block and one 2012 300xs , selling all my 3 litre EFI powerheads . Question is it Ok to run a hydrotec tuner on a 250-300 hp opti ?

    Thanks
    Larry
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  2. 11-05-2022, 05:22 PM #2
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    darkdream
    darkdream is offline 5000 RPM
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    I have 1 on my 300xs love it run it together with poppetvalve diverter and dbr ecu flash.
    https://youtu.be/sdUxBDJK_tw
    Boat: Hydrostream virage
    Engine: Mercury 300 XS DBR 1.3
    Props: 32' performance drag4 ,buckshot gen2 4 blade cleaver 34'
    Max speed: 113mph
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  3. 11-20-2022, 05:48 PM #3
    LOSTINJ
    LOSTINJ is offline Team Member
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    Thanks for the reply? What exactly does the poppet valve div do for you ?
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« Merc 300R Fuel Consumption | 300xs Fluctuating fuel burn »

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