AA impeller
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AA impeller

  1. #1
    Senior Member
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    Default AA impeller

    whats the difference from a A to a AA.lower rpms,more top speed?

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  3. #2
    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Dchallenger View Post
    whats the difference from a A to a AA.lower rpms,more top speed?
    The short answer will depend on the engine and where it makes power, typically if a BBC is honestly making 500 HP turning @5 K for example an A, it (AA) would likely drop the wot rpm by about 200

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