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  1. #1
    isa alnoaimi's Avatar
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    what twin prop pitch ? for ET 15 wheel

    hi everyone

    my friend has an FZR with ET 15lb wheel in it , and R3 reflash , stock pump with a 13/22 skat but it has alot of cavitation .

    so he asked me to check it for him , the RPM he is runing now is 8500-8600 and he dosent wanna lose rpm if he installs the twin .

    im posting this hoping to get help to chose the right pitch for my frined .


  2. #2
    If he is sticking to 155mm he should be able to run the same pitch.The twin is going to accelerate to top speed quicker but come at a price.A 160mm prop would be an improvement and not cost as much speed IMO

  3. #3
    isa alnoaimi's Avatar
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    Quote Originally Posted by FXSlowKroozer View Post
    If he is sticking to 155mm he should be able to run the same pitch.The twin is going to accelerate to top speed quicker but come at a price.A 160mm prop would be an improvement and not cost as much speed IMO
    thanks bro , but what is the second prop pitch i have to chose ? now you say the main i should get a 13/22 but what about the other prop pitch ?

  4. #4
    13/18 inducer 15/21 main should get you close

  5. #5
    hdlefler's Avatar
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    Quote Originally Posted by isa alnoaimi View Post
    hi everyone

    my friend has an FZR with ET 15lb wheel in it , and R3 reflash , stock pump with a 13/22 skat but it has alot of cavitation .

    so he asked me to check it for him , the RPM he is runing now is 8500-8600 and he dosent wanna lose rpm if he installs the twin .

    im posting this hoping to get help to chose the right pitch for my frined .

    I'm running the same wheel and just installed the new Solas prop for the SVHO and its seems to be great for hole shot and mid and top. If your friend already got a twin then disregard this post. We're still dialing it in but shooting for near the same top speed with killer holeshot. It rips hard out of the hole right now. Its a 160 prop w/ 160 liner.

  6. #6
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by isa alnoaimi View Post
    hi everyone

    my friend has an FZR with ET 15lb wheel in it , and R3 reflash , stock pump with a 13/22 skat but it has alot of cavitation .

    so he asked me to check it for him , the RPM he is runing now is 8500-8600 and he dosent wanna lose rpm if he installs the twin .

    im posting this hoping to get help to chose the right pitch for my frined .
    For your hot climate, this dual impeller
    http://www.4-tecperformance.com/inde...oducts_id=1381

  7. #7

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    Quote Originally Posted by hdlefler View Post
    Quote Originally Posted by isa alnoaimi View Post
    hi everyone

    my friend has an FZR with ET 15lb wheel in it , and R3 reflash , stock pump with a 13/22 skat but it has alot of cavitation .

    so he asked me to check it for him , the RPM he is runing now is 8500-8600 and he dosent wanna lose rpm if he installs the twin .

    im posting this hoping to get help to chose the right pitch for my frined .

    I'm running the same wheel and just installed the new Solas prop for the SVHO and its seems to be great for hole shot and mid and top. If your friend already got a twin then disregard this post. We're still dialing it in but shooting for near the same top speed with killer holeshot. It rips hard out of the hole right now. Its a 160 prop w/ 160 liner.
    what is your current pitch numbers?

  8. #8
    hdlefler's Avatar
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    13/17.5 hitting the limiter.

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