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  1. #1
    ercBOOSTED's Avatar
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    What is expected rpm increase when going from rival e1 to et 18 lb wheel?

    Any info would be appreciated.

    That's supposed to say riva not rival. Damn auto correct on these phones.


  2. #2
    AWA MEMBER
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    maybe 200-300 rpm that is a additional 2-3psi of boost

  3. #3
    isa alnoaimi's Avatar
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    in our extreme hot weather with my E1 wheel im only seeing 12-13 pound of boost at 7800-7900 rpm

    i dont think you will gain a lot with ET18

  4. #4
    yol937's Avatar
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    We are seeing 20 lbs of boost with a et18 and never seen anything over 16 with a e1

  5. #5
    isa alnoaimi's Avatar
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    Quote Originally Posted by yol937 View Post
    We are seeing 20 lbs of boost with a et18 and never seen anything over 16 with a e1
    20lbs of boost ? what RPM ?

  6. #6
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by isa alnoaimi View Post
    in our extreme hot weather with my E1 wheel im only seeing 12-13 pound of boost at 7800-7900 rpm

    i dont think you will gain a lot with ET18
    Not true! There is a big difference in power between E1 and ET18

    regarding your PSI levels.... these superchargers are centrifugal. The more RPM your engine turns the more boost your supercharger will make.
    The reason you only see 12-13 psi is because you are only turning 7900 RPM.
    Those turning 8700 RPM with an E1 see 16-17 psi boost pressure.

  7. #7
    ercBOOSTED's Avatar
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    I was seeing 16-17 with the e1 At the rpms that Jerry mentioned

  8. #8
    isa alnoaimi's Avatar
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    what bothers me that with my E1 wheel i cant turn big props like the 160mm 15/23

    i tried this prop last summer with my stock pump
    and i could only turn 7000 RPM

    i just dont get it !!!
    one of my friends he have an RXP 255 model 2009
    he have XX wheel with its package
    the XX generate 13 to 15 pound's of boost
    his using 15/22 solas prop , and his RPM's are 8200

    this is why im going for H1 wheel

  9. #9
    Yellow93's Avatar
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    Quote Originally Posted by isa alnoaimi View Post
    what bothers me that with my E1 wheel i cant turn big props like the 160mm 15/23

    i tried this prop last summer with my stock pump
    and i could only turn 7000 RPM

    i just dont get it !!!
    one of my friends he have an RXP 255 model 2009
    he have XX wheel with its package
    the XX generate 13 to 15 pound's of boost
    his using 15/22 solas prop , and his RPM's are 8200

    this is why im going for H1 wheel
    You need to find the right prop setup to get your RPMs up before you change the SC wheel again! Get those RPMs up and so will your speed. Unless your propped right your still gonna be disappointed with an H1

  10. #10
    isa alnoaimi's Avatar
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    yellow93

    one of my friends have an FZS with an H1 wheel and Vi-pic ecu

    he's using 15/23 16mm prop and turning 8400-8500 rpm with stock pump

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