Another jet pump question
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Another jet pump question

  1. #1
    Senior Member riverrat4lfe's Avatar
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    Default Another jet pump question

    I'm looking at buying a 95 commander 21' jet boat with a set back dominator pump. I have driven jet boats before but they have been smaller in size. This boat is a bigger cruiser style but it seems to me that the pump is lagging. Is this because its a heavier boat?

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    Senior Member GT Jets's Avatar
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    Quote Originally Posted by riverrat4lfe View Post
    I'm looking at buying a 95 commander 21' jet boat with a set back dominator pump. I have driven jet boats before but they have been smaller in size. This boat is a bigger cruiser style but it seems to me that the pump is lagging. Is this because its a heavier boat?
    Yep....

    Jet boats live and die by gross weight and weight distribution, a bigger boat has poor both...

    GT
    GT


    Quote Originally Posted by Quickjet View Post
    Put a 300 on the back of it, Flywheel it and a nosecone. $15,000 later you'll have a 65 mph pile of shit......

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    Senior Member riverrat4lfe's Avatar
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    Is there ways to get more responsive its got a rock grate on it now

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by riverrat4lfe View Post
    I'm looking at buying a 95 commander 21' jet boat with a set back dominator pump. I have driven jet boats before but they have been smaller in size. This boat is a bigger cruiser style but it seems to me that the pump is lagging. Is this because its a heavier boat?
    Some info/ actual numbers , re RPM vs speed , HP as well as an overall description of the performance would help , hard to really compare an 18' to a 21' and as I'm sure you realize, Boat , weight size and HP will all enter into the overall performance. I enjoyed, my "Kid hauler" 20 cruisers just like I love my current 18 2 seater , differnent times and different application

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    Senior Member riverrat4lfe's Avatar
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    Not sure on the specs now I went from
    A 80 mph advantage to a 35 mph Tritoon this year and the commander is for my dad but I was the one to test drive been driving boats a lil longer so just got to get use to the heavier taxis

  8. #6
    I don't feel tardy Hallett Dave's Avatar
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    Quote Originally Posted by riverrat4lfe View Post
    Is there ways to get more responsive its got a rock grate on it now
    Don't even think about any loader grate at this point. Keep the stock rock grate. A pump rebuild would be a good place to start. I don't think a droop will help much with that heavy hull. More horsepower and a pump rebuild should result in a good performance gain. I also think a straight Snoot and a diverter would be a good addition. Think of your transom as a fulcrum and the snoot as an extension of a lever. It will help. However, increasing the horsepower should produce the most significant gains along with the above mentioned changes. If you don't trust me contact Duane at HTP.
    All the best.
    Dave
    Quote Originally Posted by Futs View Post
    Im non induced and My turd leaves pretty hard as she sits.

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