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  1. #1
    Site Admin Green Hulk's Avatar
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    Riva X model supercharger upgrade now available

    http://www.4-tecperformance.com/inde...roducts_id=995


    Our X-Charger Impeller & Housing delivers a 20% increase in boost pressure at 8,000rpm producing arm wrenching acceleration and increased top speed. High performance impeller & housing combo increase horsepower through superior impeller blade design and larger interior housing volume. Impeller features a sophisticated Vortech® blade design that is precision balanced to deliver smooth operation. Housing and impeller install easily onto stock supercharger base plate with no additional modifications required. Includes installation instructions.


    TUNING REQUIREMENTS: Fuel: Installation of this RIVA Performance Product requires the use of RIVA Pro-Series 50lb Fuel Injector Kit (part# RS12050-I-KIT-50). Failure to install this part will result in engine damage. Pump: Impeller & Reduction Nozzle combination must produce 8,000 peak RPM with stock ECU or 8,400 peak RPM with RIVA Pro-Series ECU.


  2. #2
    Whats that whistling noise? jtskier11's Avatar
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    Awesome. Look forward to hearing some input on this once people start using it. Jerry, any chance this will be ok with 42's and RRFPR?

  3. #3
    hsdforever's Avatar
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    This part + 50" injector + stock ECU and it's OK ? it's not damage engine without RIVA ECU or RRFP ?

  4. #4
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    Quote Originally Posted by hsdforever View Post
    This part + 50" injector + stock ECU and it's OK ? it's not damage engine without RIVA ECU or RRFP ?
    It will be really rich on the bottom with 50's and no rrfpr on stock ecu.

  5. #5
    MPower's Avatar
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    Quote Originally Posted by speedskixp View Post
    It will be really rich on the bottom with 50's and no rrfpr on stock ecu.
    Thats what I would think too.

  6. #6
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by jtskier11 View Post
    Awesome. Look forward to hearing some input on this once people start using it. Jerry, any chance this will be ok with 42's and RRFPR?
    Yes, that would work great.

  7. #7
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    How many more pounds of boost does this equal over stock???

  8. #8
    Quote Originally Posted by iflyems View Post
    How many more pounds of boost does this equal over stock???
    about a 2psi increase at 8000 RPM, so that puts it just under 12psi of boost or equal to.

  9. #9
    Jerry, is this wheel considerably lighter than the stock X SC wheel? If so did Riva say how much?

  10. #10
    Whats that whistling noise? jtskier11's Avatar
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    Wonder if this wheel will take after the S3 as far as touchdowns are concerned.

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