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Thread: Impeller A or AA??? or ?????

  1. #111
    sanger mike
    Hey guy's I have a 1979 Sanger SuperJet with a blown 461 BBC Pushing around 900hp. I have alot of cavitation out of the hole. I have heard about a pre-impeller but don't know much about them??? I Pump is a Berkeley jg with a bronse A impeller. The Jet takes about 15-20 seconds to "prime" is the best word I can use to discribe it before the boat will start moving when I first set it in the water. After the inital "prime" it move right away after it been sitting (in the water). Anyone know what the deal is???? It did not do this prior to the "rebuid". The pump was rebuilt about two years ago by J and A marine in Sac. I really love this boat and have lots of time and of course $$$$$$...... money in it it run ninty three on GPS BUT..... I want to go faster da....... So what can I do????
    UM DID ANYBODY NOTICE 5 PAGES LATER AND HE NEVER REPLIED. BACK :idea: I think his problem is far past the cav reducer . we need more info on the boat.

  2. #112
    Senior Member
    Join Date
    Feb 2009
    Location
    Northern Illinois
    Posts
    1,090
    it's claimed to feed 10-20% more water that the pump can handle, still thats some serious water mass, and spinning 6-7K on top of that. I'm not saying if it does, or does'nt, but it's hard to prove. I think your right on, with the materials, differences would be negligable.

  3. #113
    SmokinLowriderSS
    Thx for the info sleek.

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