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  1. #1
    Site Admin Green Hulk's Avatar
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    Who has the Riva Vortech Supercharger Impeller?

    Im curious to know if you noticed any top speed increase while running this impeller and how big were your gains?


  2. #2
    Therock's Avatar
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    Mine was more of the mid, Pulls twice as hard. Maybe a couple on top.

  3. #3

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    I did mine riva stage 1 and super charger impeller all at once and I am seeing 72.

  4. #4

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    sc impeller

    Jerry,

    I finally got your SC impeller installed. I really have not noticed much....BUT I believe it is because my impeller has not been pitched correctly. My ski was pulling so hard before I put the SC impeller on. I am only turning 7850 RPM's SO I will have my impeller back from PPG today. I even had them bend me a brand new one when my old one was there so that I have a spare. I am going to put the new one on and have the old one(7 hrs on it) as a spare. I also picked up a new wear ring. Mine was not bad, but again a spare is nice. I will update you more when I get out this weekend. I believe the SC will pick up where the pump impeller left off and I will see greater speeds.

    Peter

  5. #5
    Site Admin Green Hulk's Avatar
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    Yes Peter I think that repitch will help you.

    Im buying another Vortech impeller and am going to run the bigger injectors and piggy back fuel controller to be safe. I remember that Vortech impeller made such a big difference in my old setup i now want to run it with my ported head and cam.

  6. #6
    shhr's Avatar
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    after I installed it on my SC I was running the same top speed but was spinning out of the hole with no increase in top end 64.5 GPS, but I was hitting the rev limiter and spinning out of the hole which tells me I am making more power so I installed a PPG Solas- no more spin and 65.5 on GPS with a full tank so is it the impeller or the new prop I think it is the impeller which made enough power to turn the new prop

  7. #7
    Site Admin Green Hulk's Avatar
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    sounds like a great combo shhr

  8. #8

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    Now I am running 8100rpm will the SC impeller push me up to and over the 81500rpm mark??? also will i need a nother repitched on the impeller or just go with a speed venturia???

  9. #9
    rx4pain's Avatar
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    I've got the Vortech coming along with the IC and plumbing (and powerpipe). I basically currently have the PPG Level I and venturi. I can install the Vortech first and report numbers with the venturi and then add the IC and plumbing if anyone would benefit from this?

  10. #10
    If you can do that, that would be great! I don't know of anyone running the PPG level 1 with the vortech. It would be interesting to see what kind of results you get.

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