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  1. #1

    rxt 215 2008 top speed problem

    My skis install below :

    4" power filter
    riva open loop kit
    riva ride plate
    riva ss wear ring
    riva ECU
    riva valve train kit
    custom made RRFPR (setting on 60psi)
    riva intake manifold upgarde kit
    riva 50Ib injector
    custom made intercooler ( use riva gen 1 intercooler bracket @ piping ) (intercooler design copy gen 1 intercooler but material use copper.)
    riva ssqv blow-off kit
    R&D intake gate
    stock reduction nozzle
    custom made catch can
    rude 2 supercharger impeller
    riva supercharger cluth washer
    mc spring washer
    riva water box
    riva 15/22r impeller but depitch 2mm

    i test on this moring weather is 31c water temp is 26c , but get result is RPM 8300 GPS 73.8mph , how can i increase rpm to 8550 and top end performance??????????????


  2. #2
    Eric Ocman's Avatar
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    Quote Originally Posted by thomas loh View Post
    My skis install below :

    4" power filter
    riva open loop kit
    riva ride plate
    riva ss wear ring
    riva ECU
    riva valve train kit
    custom made RRFPR (setting on 60psi)
    riva intake manifold upgarde kit
    riva 50Ib injector
    custom made intercooler ( use riva gen 1 intercooler bracket @ piping ) (intercooler design copy gen 1 intercooler but material use copper.)
    riva ssqv blow-off kit
    R&D intake gate
    stock reduction nozzle
    custom made catch can
    rude 2 supercharger impeller
    riva supercharger cluth washer
    mc spring washer
    riva water box
    riva 15/22r impeller but depitch 2mm

    i test on this moring weather is 31c water temp is 26c , but get result is RPM 8300 GPS 73.8mph , how can i increase rpm to 8550 and top end performance??????????????
    Even with your current RPMS your speed seems way off for what you have installed. At minimum you need to have that ski tuned for what you have and check your RPMS again. From there you will probably need to tweak your prop more.

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