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  1. #1
    gordon lasiter #328's Avatar
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    Riva stage 3 tune horsepower rating?

    Running with a riva stage 3 setup, F2 wheel, fizzle intercooler with a tial bov,
    8800 rpms. Maptuner = horsepower?


  2. #2
    Quote Originally Posted by gordon lasiter #328 View Post
    Running with a riva stage 3 setup, F2 wheel, fizzle intercooler with a tial bov,
    8800 rpms. Maptuner = horsepower?
    Im running stage 3 also on a 2018 GP1800. I would love to know also. Im guessing around 375-400 maybe?

  3. #3

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    I would say 350 HP It takes lots of boost 21-25 lbs and 9000 + rpms to make 400 hp

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    Ktmman's Avatar
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    Follow this link...
    Meant to be actually good information on horse power reading

  7. #6
    Quote Originally Posted by Ktmman View Post
    Follow this link...
    Meant to be actually good information on horse power reading
    I must not be doing it right. It said I have 166hp at the crank. 🤣

  8. #7
    Riva stage 2 for gp1800 is 350hp so will be higher than that especially winding up more boost from f2 wheel

  9. #8
    gordon lasiter #328's Avatar
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    Quote Originally Posted by Dobbo1990 View Post
    Riva stage 2 for gp1800 is 350hp so will be higher than that especially winding up more boost from f2 wheel
    Yes, 400+ hp.
    Curious what the accurate boost is at 8800 rpms.
    Some are running 9200-9500 rpms.

  10. #9
    Ktmman's Avatar
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    Quote Originally Posted by gordon lasiter #328 View Post
    Yes, 400+ hp.
    Curious what the accurate boost is at 8800 rpms.
    Some are running 9200-9500 rpms.
    8800rpm ruffly is 1718psi..
    Im running 9350rpm at 20-21psi on 19psi wheel....
    With right rpm with boost u should be running touch higher boost than wheel u using... down to pitch off prop

  11. #10
    Davrac's Avatar
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    If you using MaptunerX and can log, then Just calculate mapxrpm/5252 = approx hp

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