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  1. #1
    Boost Almighty's Avatar
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    At what point to I need to add pitch to the LEADING EDGE

    I recently repitched my stock impeller and I was turning 8600/8700 rpms. Now I have added a Riva waterbox and I'm flirting with the rev limiter even on perfectly smooth water. My question is should I just bump the trailing edge pitch back up one degree or should I add one degree to the Leading edge?? Currently its at a 12/17.
    Mods are in my sig. for my FZR.


  2. #2
    performance enthusiast AD4342's Avatar
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    I would add on both Leading and trailing, your impeller is too small for your setup. You would be better off buying a new impeller from solas or skat trak.

  3. #3
    big john's Avatar
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    how the hell are you not screamimg up into the rev limiter when i'm hitting the soft limiter @8780 with a 14/23 solas twin

  4. #4

    At what point to I need to add pitch to the LEADING EDGE

    Aren't those rpms too high with no Valvetrain?
    8700-8850

  5. #5
    big john's Avatar
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    Quote Originally Posted by Jmfmk3 View Post
    Aren't those rpms too high with no Valvetrain?
    8700-8850
    no, racers are running much higher on stock springs and retainers, valves etc. i've replaced the valves with SS valves, rev limit is set to 8850, not as high as i wanted, but thats where it is

  6. #6
    Boost Almighty's Avatar
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    I'm just trying to hit 80mph with my stock boost setup. I already have a solas impeller sitting on my shelf that would drop the rpms but it is for my big wheel setup that I am wanting to do. I just enjoy tinkering with it.

  7. #7
    Quote Originally Posted by big john View Post
    Quote Originally Posted by Jmfmk3 View Post
    Aren't those rpms too high with no Valvetrain?
    8700-8850
    no, racers are running much higher on stock springs and retainers, valves etc. i've replaced the valves with SS valves, rev limit is set to 8850, not as high as i wanted, but thats where it is
    Yea my ECU is set to 8850 as well, I was just worried it was revving too high when it would come unhooked

  8. #8
    @JC's Avatar
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    Quote Originally Posted by Jmfmk3 View Post
    Quote Originally Posted by big john View Post
    Quote Originally Posted by Jmfmk3 View Post
    Aren't those rpms too high with no Valvetrain?
    8700-8850
    no, racers are running much higher on stock springs and retainers, valves etc. i've replaced the valves with SS valves, rev limit is set to 8850, not as high as i wanted, but thats where it is
    Yea my ECU is set to 8850 as well, I was just worried it was revving too high when it would come unhooked
    The ecu cuts off about 200rpm before that when unhooking.

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