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  1. #1
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    RAD or VFII in the PSI cooker?

    I just scored some NEW Boyesen RAD valves for a good price. I also have some V Force Delta II with new petals. I know most people run 1 or the other, but I don't know which I should run? Kinda leaning towards VF II with them adjusted for high tension to accomodate for the higher RPMs. Anyone got any thoughts?
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  2. #2
    VF's

  3. #3
    ph2ocraft's Avatar
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    I sure like how those Boyesens are matched to the manifold, looks nice.

  4. #4
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by ph2ocraft View Post
    I sure like how those Boyesens are matched to the manifold, looks nice.
    Did you notice the 2-part petals? Pretty trick!!! Interestingly enough, they did not come with tuning instructions. But do say to go leaner on the high jet (up to 3 sizes) for most engines while the pilot may need to be raised 1 jet size.

  5. #5
    ph2ocraft's Avatar
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    We used to run our petals like that all the time but with newer materials they have found better elasticity, quicker yet stiffer action out of the reed petals and did away with the 2 stage petals. Hell you don't even need different materials for faster action or a stiffer reed.
    I'd love to see the difference between the two on a dyno as I doubt you'll feel a seat of the pants difference.
    Going leaner on the highs??? I think I'd change them and then check the piston was first.
    As far as longevity, I'm sure the V-Force will last longer and work better over a longer period of time.

  6. #6
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Quote Originally Posted by ph2ocraft View Post
    As far as longevity, I'm sure the V-Force will last longer and work better over a longer period of time.
    Plus the fact I can set them for high RPM. (high tension) I wish I could run them side by side on a dyno.

  7. #7
    She likes the bike. But the ski gets her wet!!!! xlint89's Avatar
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    Well, VF II's it is.... I just installed the Rads in the G/F's 750. We'll see how they do.

  8. #8
    SeaLion's Avatar
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    The RAD Valves have always treated me well, although I never tried the V-Force.

  9. #9
    i can only comment on yamaha,s but in that situation the v-force II are far superior

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