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  1. #1

    Thumbs up RIVA H1 - R&D C20 - EngineTech 20 Psi

    we would like to share some info regarding the following Supercharger spec

    Riva
    Performance Data:

    * 16.5psi @ 7,500rpm

    * 17psi @ 7,700rpm

    * 18psi @ 8,000rpm

    * 20psi @ 8,500rpm

    R&D
    Boost rated
    [email protected] 8500-8700
    [email protected] 9000

    ET20psi

    20psi @8800
    -----------------------

    We would like to know if the surge clutch can handle this Boost also is the shaft and bearings issue Or there is a new secret coming up


  2. #2
    Bounty Hunter Carlos Thomas's Avatar
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    I want this, but not until they take care of the weak link. Plus my mag 160 pump is ready for this. I feel for the 155mm people with 6 vanes.

  3. #3
    SHOBiz's Avatar
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    Great info
    ....
    Doesn't do any good to have 20psi at any rpm if it just breaks though.

  4. #4
    formerly Gold06RXP Turbo Nick's Avatar
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    Wow, thats a lot of boost!!

  5. #5
    hitman's Avatar
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    Quote Originally Posted by Carlos Thomas View Post
    I want this, but not until they take care of the weak link. Plus my mag 160 pump is ready for this. I feel for the 155mm people with 6 vanes.
    I feel for people who are going to run 20 pounds of boost on stock internals.

  6. #6
    MPower's Avatar
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    Quote Originally Posted by hitman View Post
    I feel for people who are going to run 20 pounds of boost on stock internals.
    Think those RIVA claims are legit?

  7. #7
    hitman's Avatar
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    Quote Originally Posted by MPower View Post
    Think those RIVA claims are legit?
    Well... we know the B1 doesn't live up to it's claim. Not saying it's a bad wheel at all. Some people may want something slightly milder than the C3 or E-tech low boost wheel. I'm just saying I don't know of a single person getting the claimed 11.5 @ 7700. More like about 11.5 at 8400. But then again, climate can have a lot to do with it.

    The E1 pretty much lives up to it's claims doesn't it?

  8. #8
    SHOBiz's Avatar
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    Quote Originally Posted by MPower View Post
    Think those RIVA claims are legit?

    Considering what the E1 will do at 8,500 rpm or a little more I don't doubt it it at least very, very close..

  9. #9
    MPower's Avatar
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    Quote Originally Posted by hitman View Post
    Well... we know the B1 doesn't live up to it's claim. Not saying it's a bad wheel at all. Some people may want something slightly milder than the C3 or E-tech low boost wheel. I'm just saying I don't know of a single person getting the claimed 11.5 @ 7700. More like about 11.5 at 8400. But then again, climate can have a lot to do with it.

    The E1 pretty much lives up to it's claims doesn't it?
    Oh I agree on the B1..it was a rhetorical question. The 2 skis I've worked on with B1 struggled to see 11.5 psi at 8400 RPM, 11.5 at 7700 is an absolute joke. I think the E1 is closer yeah. But still have never seen 16 psi at 8000 RPM.

    Quote Originally Posted by SHOBiz View Post
    Considering what the E1 will do at 8,500 rpm or a little more I don't doubt it it at least very, very close..
    What were you seeing at 8500 with the E1? I've seen 17+ at 8580 ish and 15.5-16 at 8300-8400.

  10. #10
    SHOBiz's Avatar
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    Quote Originally Posted by MPower View Post
    Oh I agree on the B1..it was a rhetorical question. The 2 skis I've worked on with B1 struggled to see 11.5 psi at 8400 RPM, 11.5 at 7700 is an absolute joke. I think the E1 is closer yeah. But still have never seen 16 psi at 8000 RPM.



    What were you seeing at 8500 with the E1? I've seen 17+ at 8580 ish and 15.5-16 at 8300-8400.

    16.5

    Even at 16 psi it is not a huge stretch to get to 19 or 20 with the new wheel.

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