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Thread: Hey Formula31!

  1. #1
    Registered Zanie's Avatar
    My Boats:
    1984 Excalibur 31'
    Join Date
    Oct 2000
    Lombard, Il

    Question Hey Formula31!

    Did you ever post your results regarding the globe blue impellers vs the merc black impellers?
    I did a search:
    You said you were going to run one blue and one black and post the results, but I couldn't find them.

    Did you finish the experiment?
    What did you find?

  2. #2
    Registered formula31's Avatar
    My Boats:
    1988 Cruisers 2800 Rogue
    Join Date
    Mar 2001
    After one year, approx 55 hrs. running in some sand and air, the blue impeller looks perfect as does the housing. So does the stock black one. The only thing I notice at this point is that the pump with the blue impeller was easier to turn by hand than the stock impeller. Not that that means anything. One more year I guess. Temps were identical between the engines.

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