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Thread: Riva ECU

  1. #1
    Top banana's Avatar
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    Riva ECU

    Hi guys long time no chat to Thinking about purchasing the riva ecu and some injectors will gain with my mods any advice would be great


  2. #2
    Fast & Loud meeper's Avatar
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    pretty sure riva states you can use them with the stage 2 and 3 mods. i will be riding with the ECU and injectors for the first time today

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    Top banana's Avatar
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    meeper let me know how it goes please what set up you running?

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    Fast & Loud meeper's Avatar
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    i have the stage 3 SC, 4" front intake, stainless wear ring, stage 3 prop, today i am trying the 83mm ring...riva intake grate, oil catch can, riva valvtrain upgrade, stock IC (for now) riva rear exhaust custom waterbox..pirhana motor mount...i think thats it...

    water was 80deg yesterday so i was down in rpms to 7800 with the stock ecu....only went 72.9 on the best run, i think the prop needs high rpm and the 80 deg weather is not helping....also stock ic sucks!

  5. #5
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    Quote Originally Posted by Top banana View Post
    Hi guys long time no chat to Thinking about purchasing the riva ecu and some injectors will gain with my mods any advice would be great

    Jerry had a great deal on the Riva ECU w/ free injectors. I don't know if he's still offering it but I'd check it out.

    The Riva ECU was a great mod for me because you have the option of adding more boost without having to run a fuel controller.

    As for how it would effect your ski? would be a complete guess but you would be happy.

  6. #6
    Fast & Loud meeper's Avatar
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    results not good, only 74 and 7900rpms....something must be wrong with my ski....

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    Have you retarded your cam timing?

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    Quote Originally Posted by meeper View Post
    i have the stage 3 SC, 4" front intake, stainless wear ring, stage 3 prop, today i am trying the 83mm ring...riva intake grate, oil catch can, riva valvtrain upgrade, stock IC (for now) riva rear exhaust custom waterbox..pirhana motor mount...i think thats it...

    water was 80deg yesterday so i was down in rpms to 7800 with the stock ecu....only went 72.9 on the best run, i think the prop needs high rpm and the 80 deg weather is not helping....also stock ic sucks!
    What's holding you back from doing the upgrade?

  9. #9
    Quote Originally Posted by JOJO567 View Post
    Have you retarded your cam timing?
    i thought u only retared cam timing with the rr stock class ecu

  10. #10
    Quote Originally Posted by yellow jacket View Post
    i thought u only retared cam timing with the rr stock class ecu
    I think so too, but I think some guys found some small gains by doing it with the RR ECU. I haven't heard anything about the Riva ECU though.

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