Need Power to Plane
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Need Power to Plane

  1. #1
    26' Sleekcraft ejbreeze's Avatar
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    Default Need Power to Plane

    I'm not sure if I'm posting this in the right place but I'm sure someone will set me straight. I'm have a problem with my boat getting up on plane and I can't figure out a solution.

    Pearl and Sally are the work horses on the boat:

    PEARL is on the port side



    and SALLY is on the starbord.



    Last GPS at about 20 mph and plowing water. Any ideas?


    1984 26' Sleekcraft Ambassador
    Chevy 502 Bravo One Drive

    1978 56' Carlcraft Houseboat
    Twin Chevy 454's V-drives


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  3. #2
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    Are those in a house boat???



    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

  4. #3
    Engine junkie
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    Ahhhhh ok ---------------How about some info?

    What are we working on?
    What are the symptoms?
    Any need to know history?
    Enlightenment please.
    Life's journey is not to arrive at the grave safely in well preserved body, but rather to skid in sideways, totally worn out, shouting"....holy shit.... what a ride!"

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  6. #4
    New here Beer:30's Avatar
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    Nice distributors. Well done on that. Why are there adapters under the carbs? If those dual-plane intakes are spread-bore style, some JET Performance Quadrajets would probably work well.

    Or, switch to a single-plane style intake with a pair of Holleys for more HP.

    Those log exhausts are costing you 30hp / side. Especially since they are painted different colors.

    Still need to know what type of boat. I see they are attached to V-drives, so it is some large cruiser variety - I would expect.
    Quote Originally Posted by gn7 View Post
    EFI is the wave of the future. There can be no denying it. Electronics have been on the leading edge of our entire lives. Not only os the magneto dead, but the standard issue CDI is wavering. Its all about total fuel, air AND spark control. Anybody that thinks its not has their head up their ass.


    2001 SleekCraft 30' Heritage SSB, open-bow mid-cuddy. 496HO / Bravo-I.

  7. #5
    custom boat lover
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    Quote Originally Posted by ejbreeze View Post
    I'm not sure if I'm posting this in the right place but I'm sure someone will set me straight. I'm have a problem with my boat getting up on plane and I can't figure out a solution.

    Pearl and Sally are the work horses on the boat:

    PEARL is on the port side



    and SALLY is on the starbord.



    Last GPS at about 20 mph and plowing water. Any ideas?
    if the engines are in your 1984 26 ft sleekcraft ambassador that i seen in your past statistics showing photos of the gel coat repair job to the bottom lifting strakes then I might know why your boat will not get on plane.

  8. #6
    someofamitch
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    have you checked your timing, initial and total at 3000 rpms? i've seen that more than once, will start up fine and run. But as soon as you put a load to it just won't go anywhere. And I have to say if it isn't timing, nice job on getting both distributors perfectly matched and 90 degrees to the centerline of the motor.

  9. #7
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    NO those are in a Gibson...ex's parents had a 44' Exec we use to ski behind. She would do 28MPH with Crusader carbed 454's
    Chris Straub
    Straub Technologies

    3HP is an A$$ Whooping!!! JW

  10. #8
    26' Sleekcraft ejbreeze's Avatar
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    WOW! You guys don't miss much. At first I thought it was a fuel problem so I ran some new lines.



    Nope, still won't plane. Then someone said I needed more power so I ran out and bought one of these.





    Oops! Wrong kind of power I later learned. I'm sure one of you guys will figure it out. Thanks...


    1984 26' Sleekcraft Ambassador
    Chevy 502 Bravo One Drive

    1978 56' Carlcraft Houseboat
    Twin Chevy 454's V-drives


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    i see the problem right off, throw that heavy tool box overboard.

  12. #10
    Resident Ford Nut Sleeper CP's Avatar
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    Quote Originally Posted by flat601 View Post
    i see the problem right off, throw that heavy tool box overboard.

    That and those dizzy's are on the wrong end of the engine

    Sleeper CP
    Big Inch Ford Lover

    "Dark Sarcasm"
    Going fast is only half the fun ... what you make go
    fast is the other half.
    " A Government big enough to give you everything you want is big enough to take away everything you have"

  13. #11
    New here Beer:30's Avatar
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    Quote Originally Posted by Sleeper CP View Post
    That and those dizzy's are on the wrong end of the engine

    Sleeper CP
    Big Inch Ford Lover
    Uh, no. He didn't say anything about needing anchors.
    Quote Originally Posted by gn7 View Post
    EFI is the wave of the future. There can be no denying it. Electronics have been on the leading edge of our entire lives. Not only os the magneto dead, but the standard issue CDI is wavering. Its all about total fuel, air AND spark control. Anybody that thinks its not has their head up their ass.


    2001 SleekCraft 30' Heritage SSB, open-bow mid-cuddy. 496HO / Bravo-I.

  14. #12
    New here Beer:30's Avatar
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    Quote Originally Posted by ejbreeze View Post
    Last GPS at about 20 mph and plowing water. Any ideas?
    Not knowing what your budget is, makes it difficult to make more suggestions. HP/TQ is what you need more of. It looks like you have fairly stout bottom ends, so maybe a pair of top-end kits would fit the bill.

    Edelbrock has their heads/cam/intake kit that makes 550+ HP out of an otherwise mundane BBC.

    I believe Dart or Brodix has something similar. Or maybe TrickFlow. You're talking around $3500 or so for all of the components, but you would easily add 100-125 hp per side, along with the weight savings of the AL heads.

    Exhaust, once again, would then become a necessity - not that it isn't already. Those big blocks are being choked hard by those logs. There again, you're looking at $2500 side for most. Although, Revolution Performance has some real nice exhaust for around $1000/set.
    Quote Originally Posted by gn7 View Post
    EFI is the wave of the future. There can be no denying it. Electronics have been on the leading edge of our entire lives. Not only os the magneto dead, but the standard issue CDI is wavering. Its all about total fuel, air AND spark control. Anybody that thinks its not has their head up their ass.


    2001 SleekCraft 30' Heritage SSB, open-bow mid-cuddy. 496HO / Bravo-I.

  15. #13
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    ejbreeze,
    I see that you just finished a major re-rig of your boat. I wasn't sure what boat you had at first. I have some questions, during the re-rig, did you get new props? Could they be too big? Does the boat have cav plates? Did you rebuild/ change motors? Did you add weight to the hull? Obviously with a top speed of 20, and unable to get on plane, something with the set up is way out of whack. When you say the boat is plowing water, is the bow up in the air, or being pushed down. The more info ya give, the easier it will be for the forum to help ya out.


    BTW, lets see some completed pics of the boat. The engine room looks great.



    Darrell.
    San Diego.

    28ft Sportcat
    With Twins

  16. #14
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    Will This Be On The Test, ?

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