Set-back pump
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Set-back pump

  1. #1
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    Default Set-back pump

    Where is the best place in AZ to get a complete pump set-back dealio on a 70's crusier?

  2. #2
    Senior Member Futs's Avatar
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    Don't waste your time. Enjoy the boat. You wanna got fast? buy a smaller boat.

    Not worth the headache your going to have to play with on a cruiser. If it was a tunnel, then maybe.

  3. #3
    Senior Member ol guy's Avatar
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    Default Ditto!!!

    Futs is 110% right. your'e going to wreck the ride of a heavy "cruiser" setting the pump back.

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    Senior Member Brendellajet's Avatar
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    Not to argue with the previous posts, I tend to agree, however there are advantages to a full setback. 2 out of 3 cruisers I've done this to benefited right off the trailer. Additional leg room, clean out is outside the boat...the third boat had a ton of work done to the bottom and needs its cav plates put back on at which point I think it will ride equal to or better than before.

    Performancemight improve, but the legroom and clean out access are huge, especially if you boat in parker...
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

  5. #5
    Senior Member Futs's Avatar
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    Quote Originally Posted by Brendellajet View Post
    Not to argue with the previous posts, I tend to agree, however there are advantages to a full setback. 2 out of 3 cruisers I've done this to benefited right off the trailer. Additional leg room, clean out is outside the boat...the third boat had a ton of work done to the bottom and needs its cav plates put back on at which point I think it will ride equal to or better than before.

    Performancemight improve, but the legroom and clean out access are huge, especially if you boat in parker...
    4 " of leg room is not worth all the work! basiclly rerigging the whole boat. And for what? 4" of leg room and the clean out hole outside of the boat? Big deal, it already has plenty of leg room. It's a cruiser. Performance gains are so minimal its basicly pointless. Specially if its stock power. Now with your 825 hp deal it might be worth it, but to each there own. My cruiser ran 81 with 600 hp all day long.

    another reason not to do it on a cruiser is hull integrity. Don't want to F with that. It's more prone to crack the intake and the transom.

    Just my opinion though. Spend the money elsewhere and enjoy the boat. You want a fast cruiser, buy a V drive!

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    I already have a blown Schiada. I am thinking about doing a big HP jet daycrusier, full stringer deal. Just trying to get some input.

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    Boat Nut sleekcrafter's Avatar
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    For the day cruiser set-backs, lots of work for minimal gains. Interior space, and increased handleing, are the best features, at the sacrifice of space in the engine compartment, and potential leaks. A better bang for the buck would be, have the hull blue printed, and a pump race prepped, both of which would yield greater potential with added HP, even with heavier boats.
    Upper Midwest Power Boat Association
    DRAG BOAT RACING UMPBA #926


  8. #8
    Senior Member Brendellajet's Avatar
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    Depending on the hull you go with, id do it. No regrets having a full setback in mine. 4 inches may be the difference between a boat that will comfortably carry 4 adults instead of 2 adults and 2 kids, though if you are going from a standard install( if such a thing exists) to a full setback, you will see more like 6 or possibly 7 inches gained.

    As of right now, my hull does not leak, but that's because it was set just last year so I could put a new intake in. It does add some stress to the hull, but id rather see a full setback in a boat with more transom(daycruiser) than a small 18 footer haul ass deal. The more transom there is, the more support the boat will have. I've also found that going to a thicker TA plate I was able to get rid of leaks, but again they may come back after I put a few more trips on the boat. You will definitely need to use some support outside the boat as extending the length out the transom requires additional support.
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

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    Senior Member jetboatperformance's Avatar
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    Quote Originally Posted by Full Throttle View Post
    I already have a blown Schiada. I am thinking about doing a big HP jet daycrusier, full stringer deal. Just trying to get some input.
    Just curious how much power for this potential cruiser project and how fast do ya wanna go ? Tom

  10. #10
    Senior Member Futs's Avatar
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    To answer your original question, I would take it to Dan Nelson at JETT Perormance and have him do the work. Top notch work and great people!!

    I personally wouldnt do it, but thats my opinion having owned a cruiser with a blueprinted bottom and alot of pump work. Those upgrades alone paid dividends and was cheaper than doing the set back.

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    If I do it, it will be in the 900-1100HP range. I have the option of going t-turbo or 10/71. I have not had a jet in 15yrs.

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    if you wanna go fast yes get a smaller hull. but make it a v drive. easy guys I love my jet boat also . just wanted to throw a jab in

  13. #13
    Senior Member Brendellajet's Avatar
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    The nice thing about a cruiser is that it handles rougher water. I've had a rocket and a cruiser. If going as fast as you canpossibly go is your goal, smaller boats are good for that. But if you want to make a cruiser as fast as it can be, Id use every tool/setup option available to me. I think all the pro's and con's have been presented so I wont beat the dead horse...
    "He is a lover, not a fighter. But he's also a fighter, so dont get any ideas."

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