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Southwind guys, bottom...

  1. #1
    I'm No Expert Shaun's Avatar
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    Default Southwind guys, bottom...

    My boat has alot of hook in it. Jack at MPD's words where "wow this thing has a ton of hook in it". He could recommend anybody to correct it, he said he was looking for somebody who did good work but it was proving difficult. He said with this hull i should leave 1/16" to 1/8" of hook near the back of the hull. He said these hulls likes it. My hull is a Anthony but it's a splash of a southwind from what I've been told. I know there are some serious southwind guys on these forums so looking for you guys to chime in. Who should i have correct the hook, and what should i do. My plans this winter are to pull everything out of the boat, and set the pump back, get my intake setup for a shoe and ride plate. I'm running 82 MPH now. The hull has alittle bit of porpoise right right which started with the loader MPD made me.

    Few pics of the boat





    Racing pic



    I have a short video of a pass that can kinda show how the boat rides. I'll upload that later. Right now it's looking like the water starts touching the boat right where i sit. Here's a video of a race, hard to see the way it runs but maybe it will provide some useful info.

    http://myspacetv.com/index.cfm?fusea...deoid=41626213

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  3. #2
    I'm No Expert Shaun's Avatar
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    oh also, when i had the pump out to have the bowl, droop, cap double drilled i took the impeller with me to MPD. I'm running a aluminum berk A and jack said it was in pretty bad shape. The impeller was way under sized and the clearance between it and the wear ring was on the high side. The impeller was stressing at points and he showed me areas that where cavatating. So i will also be getting a new impeller. Not sure which one yet, i was looking/reading on that hi-helix impeller. Figured whatever i get will need to be race prepped.

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    Member TrynPas's Avatar
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    Sorry don't have any answers for you, but those are great videos.
    Quote Originally Posted by HawaiianJet View Post
    You done got my kentucky ass all confused!!!

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    Senior Member Brendellajet's Avatar
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    You could try and have Jeff Bennett take a look at it, sounds like if Jack at MPD is looking for someone then Maybe Jeff retired or is working on race or super hi-po deals only.

    Given Squirtcha's experience with working on the bottom of his Kachina(southwind copy?)-I would make sure that if you do decide on having the bottom done, the person knows what they are doing. How much more speed are you looking for? Might be time for a different hull? Maybe Dad wants his back?

    Video of the boat is hard to see. Something closer would show better detail.

    Boat looks very clean. Did a nice job on it.

  7. #5
    Senior Member ol guy's Avatar
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    Quote Originally Posted by Shaun View Post
    oh also, when i had the pump out to have the bowl, droop, cap double drilled i took the impeller with me to MPD. I'm running a aluminum berk A and jack said it was in pretty bad shape. The impeller was way under sized and the clearance between it and the wear ring was on the high side. The impeller was stressing at points and he showed me areas that where cavatating. So i will also be getting a new impeller. Not sure which one yet, i was looking/reading on that hi-helix impeller. Figured whatever i get will need to be race prepped.
    Hey Shaun, If you are going to gut the boat yhe flip it and move the intake back 3 or 4 inches back. 4 max. the bottom is easy. didn't notice if you said ride plate and shoe or not. I had a 1978 18ft southwind original and did all the bottom ride plate and shoe. basically stock 460 ford and a decent pump and ran 82mph on the gun at 5400 rpm. Its alot of work but if you want to make a winter project out of it P.M. me and we can talk. The first thing tho is pull the pump and pop the intake and send it to Jack the bottom work gets done while he does the machine work on the intake and pump. The impellar you choose depends on the rpm you want the motor to work at and Jacks the best at that. M

  8. #6
    Glendale Arizona Squirtcha?'s Avatar
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    Quote Originally Posted by Brendellajet View Post
    You could try and have Jeff Bennett take a look at it, sounds like if Jack at MPD is looking for someone then Maybe Jeff retired or is working on race or super hi-po deals only.

    Given Squirtcha's experience with working on the bottom of his Kachina(southwind copy?)-I would make sure that if you do decide on having the bottom done, the person knows what they are doing. How much more speed are you looking for? Might be time for a different hull? Maybe Dad wants his back?

    Video of the boat is hard to see. Something closer would show better detail.

    Boat looks very clean. Did a nice job on it.
    We need to put my experience in proper perspective. I did the work on my Kachina's bottom. When I did it the first time I just did the center section from intake out to the first strake and it worked awesome. The boat handled better, responded more to hardware changes, and lessened the wetted area of the hull at speed. Ran it for an entire season that way without any problems whatsoever and had no porpoise at any speed.

    It wasn't until the following season that the boat had bottom damage in the section outside of that area and had to repair it (unrelated to the area I had re-worked the previous year). While it was upside down I blue printed the rest of the hull and had the bottom perfectly straight. It was only after that area was blue printed that the boat picked up a horrendous porpoise.

    If you do it yourself, just do the center area and you'll be fine. Apparently these boats/hulls need to have some hook in them or it'll end up being a bounce fest. Although some say this outer area of the hull isn't in the water at speed, I'll have to beg to differ. Obviously it is, or blueprinting this area wouldn't have had the affect it did on my boat.

    I did end up getting it to ride right (no porpoise) but I had to add cavitation plates to the back and use those to put hook back in the bottom by adjusting them to about 1/4" down.

    Pm me if you have any questions. I wouldn't hestitate to do the the center section of a boat again, but will never touch the areas outside of that.
    Last edited by Squirtcha?; 08-31-2008 at 08:32 AM.

  9. #7
    Senior Member tahitijet's Avatar
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    Quote Originally Posted by Shaun View Post
    My boat has alot of hook in it. Jack at MPD's words where "wow this thing has a ton of hook in it". He could recommend anybody to correct it, he said he was looking for somebody who did good work but it was proving difficult. He said with this hull i should leave 1/16" to 1/8" of hook near the back of the hull. He said these hulls likes it. My hull is a Anthony but it's a splash of a southwind from what I've been told. I know there are some serious southwind guys on these forums so looking for you guys to chime in. Who should i have correct the hook, and what should i do. My plans this winter are to pull everything out of the boat, and set the pump back, get my intake setup for a shoe and ride plate. I'm running 82 MPH now. The hull has alittle bit of porpoise right right which started with the loader MPD made me.

    Few pics of the boat





    Racing pic



    I have a short video of a pass that can kinda show how the boat rides. I'll upload that later. Right now it's looking like the water starts touching the boat right where i sit. Here's a video of a race, hard to see the way it runs but maybe it will provide some useful info.

    http://myspacetv.com/index.cfm?fusea...deoid=41626213
    i had over 5/8" of hook in the worse spots of my tahiti (same southwind bottom) i had my intake machined for max setback (which i think is around 3" without going fully through the transom. and did the bottom myself. lots of labor but defintaly worth it.. with that much hook i think i could have thrown 2000hp at it and still only gone 45mph.

    another thing to think of is wideing the lifting strakes i had many many people tell me these boats are prone to chine walk in the 80's/90's. I did this to mine as well and have no issues what so ever. I did develop a porposie but have been able to almost completely tune it out with hardware changes.

    I did the work myself but was able to get quite a bit of how to and advice from jack and jeff bennet.. you might want to try looking around for jeff i know a few people on the boards have or had his #. If you tackle it yourself be prepared for some trial and error If i can't completley adjust out the slight porposie i have left my boat will be going back upside down for some more work.

  10. #8
    Amber Racing Services BUSBY's Avatar
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    contact Todd w/ TRG Custom Fiberglass (toddnjuzz here on the boards)

    he can assist you with the set back and perfecting the center section.

    as agreed, some hook on that hull seems to be what it needs


    BB

  11. #9
    I'm No Expert Shaun's Avatar
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    Quote Originally Posted by Brendellajet View Post
    You could try and have Jeff Bennett take a look at it, sounds like if Jack at MPD is looking for someone then Maybe Jeff retired or is working on race or super hi-po deals only.
    From what i was told he's not doing bottoms anymore.

    Quote Originally Posted by Brendellajet View Post
    How much more speed are you looking for? Might be time for a different hull? Maybe Dad wants his back?
    Looking to squeeze what i can out of this hull. I've gone back and forth with the idea of getting a new hull and giving this boat back to my parents... That would mean i would have to give them my motor too... hmmm i do want to build a 496

  12. #10
    I'm No Expert Shaun's Avatar
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    Ol Guy, My intake is set way up in the boat. I probably have 5-6" from the intake to the back of the boat. When talking to jack he wanted to set it back 1" away from the transom. I'm spinning 5500 (+/- 100rpm) on a aluminum berk A now.

    Squirtcha?, Thats exactly what jack told me, he said these hulls need some hook in them!

    tahitijet, Jack talked about widening the lifting strakes too, he said that was somthing i could do to help keep the boat stable when running over 80. If you watch that race video you can see the boat teadering back and forth at the end of the run. I noticed from this last trip that the boat really likes to do that when hitting some wake/chop when i'm running pretty fast.



    Here's another video of a pass, my camera guy is all over the place and doenst know how to work zoom..

    http://unix-scripts.com/hb/uploads/V...5_16_48_32.wmv

  13. #11
    Senior Member ol guy's Avatar
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    Quote Originally Posted by Shaun View Post
    Ol Guy, My intake is set way up in the boat. I probably have 5-6" from the intake to the back of the boat. When talking to jack he wanted to set it back 1" away from the transom. I'm spinning 5500 (+/- 100rpm) on a aluminum berk A now.

    Squirtcha?, Thats exactly what jack told me, he said these hulls need some hook in them!

    tahitijet, Jack talked about widening the lifting strakes too, he said that was somthing i could do to help keep the boat stable when running over 80. If you watch that race video you can see the boat teadering back and forth at the end of the run. I noticed from this last trip that the boat really likes to do that when hitting some wake/chop when i'm running pretty fast.



    Here's another video of a pass, my camera guy is all over the place and doenst know how to work zoom..

    http://unix-scripts.com/hb/uploads/V...5_16_48_32.wmv
    Hey Shaun, Jack is right and thats why I recommend no more than 4 inches set back. Those hulls are light and the bottoms just need alittle flatten here and straighten there and they will take a good loose set and be solid as a rock. After watching the video the boat is doing the standard southwind dance. The rocker and the hook are fighting so it will porpoise at speed. The rocker is trying to let the bow fly alittle and the hook is trying to set the bow down flat. Little bottom work and a 3/8s shoe and ride plate and its all good. That being with a good pump and fair amount of power. I did mine and was VERY happy with the out come. Mark

  14. #12
    Senior Member 454 blue boat's Avatar
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    Quote Originally Posted by Shaun View Post
    My boat has alot of hook in it. Jack at MPD's words where "wow this thing has a ton of hook in it". He could recommend anybody to correct it, he said he was looking for somebody who did good work but it was proving difficult. He said with this hull i should leave 1/16" to 1/8" of hook near the back of the hull. He said these hulls likes it. My hull is a Anthony but it's a splash of a southwind from what I've been told. I know there are some serious southwind guys on these forums so looking for you guys to chime in. Who should i have correct the hook, and what should i do. My plans this winter are to pull everything out of the boat, and set the pump back, get my intake setup for a shoe and ride plate. I'm running 82 MPH now. The hull has alittle bit of porpoise right right which started with the loader MPD made me.

    Few pics of the boat





    Racing pic



    I have a short video of a pass that can kinda show how the boat rides. I'll upload that later. Right now it's looking like the water starts touching the boat right where i sit. Here's a video of a race, hard to see the way it runs but maybe it will provide some useful info.

    Racing a Flatty Video by Shaun - Myspace Video
    Bill morgan the owner of southwind boats is here in sac. ca. and he is back doing work on boats again. hes not yet building the southwind ones yet.Hes very fair in prices and everyone one knows when he builds one its done right. For all mto know go on craigslist in sac. ca. And you will see his add and his ## is 916-600-6938 bill

  15. #13
    Senior Member Futs's Avatar
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    Quote Originally Posted by 454 blue boat View Post
    Bill morgan the owner of southwind boats is here in sac. ca. and he is back doing work on boats again. hes not yet building the southwind ones yet.Hes very fair in prices and everyone one knows when he builds one its done right. For all mto know go on craigslist in sac. ca. And you will see his add and his ## is 916-600-6938 bill
    Bottoms been done for a couple years now.

  16. #14
    I'm No Expert Shaun's Avatar
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    dang, bringin back the old threads!

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