Bottom Blueprinting
#22
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Joined: Mar 2009
Posts: 203
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I noticed a difference as soon as the boat got on plain. My boat was very sensitive to every little ripple in the water before, jet ski wake would make it shift back and forth. Now its just goes thru the water smooth as can be and it did increase my cruising speed slightly. But like you say the biggest difference was at wot. My bow used to wonder and it would chine walk REALLY easy. Now at WOT i could take my hands off the wheel if I dared, there's no effort to keeping it on the pad. Of course the best part is the MPH I gained fulled trimmed and wot.
#23
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Joined: Jul 2008
Posts: 3,748
Likes: 869
From: Delray Beach, FL
You arent at full throttle in that picture are you? If you are, how much fuel and people are you carrying? ...the whole damn boat is in the water.
FWIW - the water at 70 MPH breaks about 2-3 feet behind me on my 342
Last edited by Keith Atlanta; 01-05-2010 at 09:51 PM.
#24
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Joined: Apr 2005
Posts: 2,957
Likes: 1
From: www.bajaboatowners.com
Here's another picture with 3 people full of fuel and 3 coolers I'm WFO here...
#25
Gold Member

Joined: Jul 2008
Posts: 3,748
Likes: 869
From: Delray Beach, FL
#26
Mine has a healthy hook and I am contemplating getting it removed this winter or doing it myself. Right now not much of the boat is in the water at WOT and I believe more will be in the water after hook removal. The quote I got last winter was 2k to fix the bottom. Last year I did the raising of the x dimension like Ben perfected said and gained 10mph along with new camshafts.
Last edited by blue thunder; 01-06-2010 at 11:38 AM.
#27
Here she is north of 90mph. She can get quite a bit of chine walk going if the water is too flat. As you can see, not much panther in the water.
http://www.youtube.com/watch?v=bbCfHt242pY
http://www.youtube.com/watch?v=bbCfHt242pY
#28
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Joined: Feb 2009
Posts: 8,356
Likes: 1,515
From: NW Michigan
Here she is north of 90mph. She can get quite a bit of chine walk going if the water is too flat. As you can see, not much panther in the water.
http://www.youtube.com/watch?v=bbCfHt242pY
http://www.youtube.com/watch?v=bbCfHt242pY
#29
Runs well. I like your other utube pass that you made. It looked like the conditions were perfect for a high speed pass. I would like to hit 94 with my 32 however for now I have to be content with 80 and that's a guess since it never hit the water last year with my new 496 builds.
I knew you would appreciate that getrdunn. It just doesn't show the lack of boat in the water quite as well. More chop is actually better for my rig with the bottom as is. I was getting a bit of walk that day which causes me to have to back out as you could hear me do in this vid.http://www.youtube.com/watch?v=g_0deyyZoZ4
#30
what I would do is find the center of gravity ,move as much weight to the back you need bow lift ,it looks to flat .after you find your CG you would want to shorten the lower two lifting strakes Think of it like a lever with the CG being the pivit point the ferther back the CG the less wetted surface,the boats being pushed always to the surface .I hope this helps ,easy way to prove this is put 2 80lb sandbags beside the engines what kind of power do you have and what else are doing,WE had my 33ol with ac porcelin head, microwave 20 inch flat screen sink and fridge 75 mph to78 with stock 496 ho,s spinning 30 labbed turning in and its 1.5 mph faster with people in the back seat



