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  1. #1
    Site Admin Green Hulk's Avatar
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    Impeller weights: Rude VS 2rude VS Stock

    Here is the weight of the 1st generation Rude Charger impeller


    The 2rude impeller is only 5 grams heavier


    While both of these impellers are large 140 mm impellers they are still much lighter than the colossal weight of the stock 215 HP impeller. The 2rude is still 61 grams lighter than that of the stock impeller.



    And if anyone is interested here is a 1st generation Rude impeller side by side with the new 2rude impeller


  2. #2

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    OK, that's the shocker of the day, that the OEM impeller is heavier than them all; never would have guessed... very good info. So, what does that say about the need for a higher slip pressure for the larger impellers vs OEM? I thought more slip resistence was to compensate for a heavier impeller, which would have more centifugal force.

  3. #3
    Forgive me, but what OEM SC wheel is that the 215 or the X? Probably a stupid question. Thanks.

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    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by VX1 View Post
    So, what does that say about the need for a higher slip pressure for the larger impellers vs OEM? I thought more slip resistence was to compensate for a heavier impeller, which would have more centifugal force.

    Well, this is true that the heavier the impeller the more stress it puts on the clutch but we also must consider that by making more boost we put more stress on the clutch. Ideally, we want a light weight impeller that will also build a great deal of boost and minimize the stress put on the clutch.

  5. #5
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by RXP-REX View Post
    Forgive me, but what OEM SC wheel is that the 215 or the X? Probably a stupid question. Thanks.
    That is the 215 OEM impeller

  6. #6
    The most interesting man in the world. Nils888's Avatar
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    The higher boost pressure is why you need to shim the clutch more.

  7. #7
    West Texas RXP skoepp's Avatar
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    Thanks for the post Jerry and Nills!!
    good info.

  8. #8

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    To complete this thread, it'd be nice not only to have the weight of the ET impellers, but the OEM "X" too. If the OEM 127mm is 243g, could the 137mm break 300g? ...and be a contributing factor in the failure of a few BRP metal washers?

  9. #9
    Site Admin Green Hulk's Avatar
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    Quote Originally Posted by VX1 View Post
    To complete this thread, it'd be nice not only to have the weight of the ET impellers, but the OEM "X" too. If the OEM 127mm is 243g, could the 137mm break 300g? ...and be a contributing factor in the failure of a few BRP metal washers?
    I'll try to get those weights for you.

    I can tell you that the new Rude X'treme X charger impeller is 180 grams

  10. #10
    Jerry, has SD ever commented on why their stock SC wheels are so heavy? It seems to me they could cut back on them some and maybe save some headaches for their customers and dealerships.

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