Gullwing setups
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Gullwing setups

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    Impeachment! 75 TX's Avatar
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    Default Gullwing setups

    Just wondering what's working for all you G/W drivers? How much power? Impeller cut, droop or snoot, wedges, inserts, plate and nozzle angles, etc. Anyone care to share?

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    About 500' AGL MudPumper's Avatar
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    The really fast ones only need 600HP....or so I'm told

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    Quote Originally Posted by MudPumper View Post
    The really fast ones only need 600HP....or so I'm told
    Who tells you this?

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    Senior Member Need4Speed77's Avatar
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    Quote Originally Posted by 75 TX View Post
    Just wondering what's working for all you G/W drivers? How much power? Impeller cut, droop or snoot, wedges, inserts, plate and nozzle angles, etc. Anyone care to share?
    So you are asking for all the top secret R&D? All the hours changing shit, crawling under the boat on your back swapping loaders and shoes/shims, adjusting plate angles and wedges, money wasted on inserts and $900 impellers that were cut too much. Trying this or that and almost getting pitched half a dozen times. I literally had to check my shorts once and you want all this info to be just handed over???

    No really, every boat will respond differently to different things. Find a good starting point and then go from there. Only make one change at a time. Just keep in mind that if not careful it could consume you. You could chase your goal forever and never get there. Not to mention the goal will probably change. Good luck with the work ahead. It has definately been an experience for me.

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    i'm back!! 1QuickCP's Avatar
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    Very well said........ the best setup is always a secret, and trust me, for 1500 hp + in a gullwing its a insane amount of r&d. I probably have made 35 shoes for my own boat over the years...lol...and thats just the start.


    But the basic: 2* backcut shoe, 1/8 above keel line, make shims for 1/4 above to 1/8 below in .062 steps

    Loader from MPD or ARS, ramps cut back somewhwere from even with biting edge of shoe to 1/2 above or more. Small center blocker,maybe

    nozzel from 3.062 to 3.187

    2* up wedge ,droop snoot....total should be aprox 6 deg up.

    rideplate set at 4* up from keel

    Impeller from "b" to "AA" depends on motor combo

    motor position in boat..depends on hp and weight

    Oh and btw everything here depends on everything else so you got maybe 100,000 combos to try.

    And what works great at 110 will get you killed at 125......



    Oh, power ...ummm...about 900 to 1100 makes a gullwing run pretty good and still kind of easy to set up...over this and its starts to get real sensitive...imho
    Last edited by 1QuickCP; 08-20-2010 at 06:11 AM.

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    Quote Originally Posted by Need4Speed77 View Post
    So you are asking for all the top secret R&D? All the hours changing shit, crawling under the boat on your back swapping loaders and shoes/shims, adjusting plate angles and wedges, money wasted on inserts and $900 impellers that were cut too much. Trying this or that and almost getting pitched half a dozen times. I literally had to check my shorts once and you want all this info to be just handed over???

    No really, every boat will respond differently to different things. Find a good starting point and then go from there. Only make one change at a time. Just keep in mind that if not careful it could consume you. You could chase your goal forever and never get there. Not to mention the goal will probably change. Good luck with the work ahead. It has definately been an experience for me.
    Quote Originally Posted by 1QuickCP View Post
    Very well said........ the best setup is always a secret, and trust me, for 1500 hp + in a gullwing its a insane amount of r&d. I probably have made 35 shoes for my own boat over the years...lol...and thats just the start.


    But the basic: 2* backcut shoe, 1/8 above keel line, make shims for 1/4 above to 1/8 below in .062 steps

    Loader from MPD or ARS, ramps cut back somewhwere from even with biting edge of shoe to 1/2 above or more. Small center blocker,maybe

    nozzel from 3.062 to 3.187

    2* up wedge ,droop snoot....total should be aprox 6 deg up.

    rideplate set at 4* up from keel

    Impeller from "b" to "AA" depends on motor combo

    motor position in boat..depends on hp and weight

    Oh and btw everything here depends on everything else so you got maybe 100,000 combos to try.

    And what works great at 110 will get you killed at 125......



    Oh, power ...ummm...about 900 to 1100 makes a gullwing run pretty good and still kind of easy to set up...over this and its starts to get real sensitive...imho
    Christ...I should've known better. I'm fully aware of all the cliche points that have been made. No two behave the same, one change at a time, find a good starting point yada yada yada.
    I'm sure Jack set mine up at 'a good starting point', I was just interested in the range of different setups that have been successful in different boats. Not so I could run out and copy someone else's shitt, but merely out of curiosity. That and to see if there are common themes that continue to come up that might lead my quest in the right direction...or keep me from spending too much time going the wrong direction.

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    Resident Ford Nut Sleeper CP's Avatar
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    FYI,

    http://www.performanceboats.com//showthread.php?t=7724

    There's another thread about Dan's boat somewhere that has more set-up info in it I believe. I could be wrong ??

    As mentioned 1/16"- 1/8" up with a two degree back-cut shoe is a very good place to start. Ride plate set at 4* and nozzle at 5 or 6* with a small blocker in the intake (4-6")

    S CP

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    " A Government big enough to give you everything you want is big enough to take away everything you have"

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    Glendale Arizona Squirtcha?'s Avatar
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    Quote Originally Posted by 1QuickCP View Post
    But the basic: 2* backcut shoe, 1/8 above keel line.

    Loader from MPD or ARS, ramps cut back somewhwere from even with biting

    edge of shoe to 1/2 above or more. Small center blocker,maybe

    2* up wedge ,droop snoot....total should be aprox 6 deg up.

    rideplate set at 4* up from keel
    My setup with the exception of the wedge. I'm running a 4 degree instead of a 2. Also no blocker because I'm a little low on horsepower. My boat is still riding a little flat I think mostly because my motor is 7 1/4" forward due to a jetaway.

    The above suggestions from the guys should put your right in the ballpark.
    Last edited by Squirtcha?; 08-20-2010 at 10:13 AM.

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    Resident Ford Nut Sleeper CP's Avatar
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    Quote Originally Posted by Squirtcha? View Post
    My setup with the exception of the wedge. I'm running a 4 degree instead of a 2. Also no blocker because I'm a little low on horsepower. My boat is still riding a little flat I think mostly because my motor is 7 1/4" forward due to a jetaway. This should put you right in the ballpark.
    Dan,

    If the engine is an additional 7" forward a blocker "could" help free the boat up. A blocker is also an additional riding surface, it "can" help add lift to the boat. As you mentioned your less HP might be and issue in your case. It's worth a shot though.

    As QuickCP mentioned once you get 6 intake grates, 4 shoes, 8 shims, 4 nozzles the combination of set-ups is huge. ( Does anyone know who to do that combination, Iterations I'll try to figure it out later) the number is big.
    Off the top of my head I think that would be 768 different combination's but it's been a while since I've done iterations.

    S CP
    Last edited by Sleeper CP; 08-20-2010 at 10:11 AM.

    "Dark Sarcasm"
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    fast is the other half.
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    I've got a good baseline. I was just wondering about different people's results with respect to the finer points of tuning.

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    Glendale Arizona Squirtcha?'s Avatar
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    Quote Originally Posted by Sleeper CP View Post
    Dan,

    If the engine is an additional 7" forward a blocker "could" help free the boat up. A blocker is also an additional riding surface, it "can" help add lift to the boat. As you mentioned your less HP might be and issue in your case. It's worth a shot though.

    S CP
    Yep could be. I'm not done yet (how long you been tuning on yours Jon?). You know how that goes. Joey TX-19 can get his hands on a blocker so I'll give it a go.

    I'm also going to have my impeller cut back to an AB. It's a new stainless A and my R's are down a bit from my old aluminum. I'd like it to run at 5500 and the A stainless is keeping me to around 5300 right now. The blocker might help out with rpm a bit too? At 5500 and a 200 shot it puts me right at 6000 rpm and it really seems to like that.

    My motor is still not exactly dialed in yet either. Might be a little more there with a good tune.
    Last edited by Squirtcha?; 08-20-2010 at 10:29 AM.

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    Senior Member TNYoungblood's Avatar
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    I know the blocker helped mine get out of the water alittle and i'm runnin a 4* wedge and I need to try a 2* but that 4 shoots a purdy tail .. But for all out runnin I'd like to see what a 2* does ..

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    Senior Member brgrcru's Avatar
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    Sell it and buy a semi-v. Somewhere around here those semi-v's are doing 80-85mph with no pump work on only 400- 450hp.

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    Quote Originally Posted by brgrcru View Post
    Sell it and buy a semi-v. Somewhere around here those semi-v's are doing 80-85mph with no pump work on only 400- 450hp.
    Maybe. Then I could be happy with my boat, and glad to run it. Next perhaps I could question (perhaps foolishly) why others with much faster rides barely ran theirs (especially after all the posturing in the 'KingV' thread), while others with equivilent rides ran the piss outta theirs. Though I'd mention no one by name, and directly insult no one, I wonder how long it'd take for some of the 'big boys' to pointedly attack me, point out that my shitt is slow and unimpressive, and even go so far as to say they'd actively try to blow up their shitt if it were as slow as mine.
    From there I'm sure the long knives would come out. I'd likely then feel as though I'm under attack and say some ill-advised things, and everyone and their mother would then pile on, one after another, with silly comments and beat me into submission.
    Nah, I think I'll stick with the Gullwing. Thanks.
    Last edited by 75 TX; 08-20-2010 at 11:55 AM.

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