Boat porpoise problem

[CajunChristian]

Originally Posted by Bdub

Spunt Drag u talking about the small welded tabs like the ones that come on an Alweld or in the pic above?
I dunno if I could handle putting a hook in my brand new hull or if it would actually help, but I don't have porpoising problems either...

If it ain't broke, don't fix it
D

[Spunt Drag]

Originally Posted by Bdub

Spunt Drag u talking about the small welded tabs like the ones that come on an Alweld or in the pic above?
I dunno if I could handle putting a hook in my brand new hull or if it would actually help, but I don't have porpoising problems either...

Yep, it's a 1648 Alweld wit those small welded aluminum trim tabs. They're useless. They'll stop the boat from porpoising but it's like draggin a lead sled. I don't know why it freaks people out so bad to put a hook in their hull. Like CajunChristian said, look under most new bass boats or any high performance boats. If I didn't have a porpoising problem then I wouldn't hook it, but for those that have a porpoising problem and want to maximize their performance, HOOK THE HULL!

[StanMan]

The answer to the question is easy lol, hook the hull. If you want the best performance out of a tiller on aluminum, you dont lower the motor and install trim tabs. This aint yankee land geez where are yall from lol!

[Nickt87]

I have 17' aluminum v with a 3 degree v in the back. I have a 40 yamaha pushing it, but I have a bad porpoising problem unless I put every ounce of gear on the bow. Does the hook work on boats that carry their v all the way to the back?

[CajunChristian]

Originally Posted by Nickt87

I have 17' aluminum v with a 3 degree v in the back. I have a 40 yamaha pushing it, but I have a bad porpoising problem unless I put every ounce of gear on the bow. Does the hook work on boats that carry their v all the way to the back?

Sure does.
D

[Gerald]

Originally Posted by CajunChristian

\
I use a 12" piece of 2X4 and a loaded rubber hammer. It takes much less blow than you think. I measure with a straight edge constantly to insure a smooth curvature. I usually just slide the boat back about 2' on the tail end of the trailer, lay on my back and tap away. About 10 minutes to completely hook both sides.
You want your boat to sit up on the tail and run, but, you don't want to use all available horsepower to lift the bow.

Less boat in the water=less drag. Less trim angle=less wasted horsepower.

The ways to control the bow on a loaded aluminum boat is:
weigh the bow down, not practical
trim the engine all the way down, a tremendous waste of horsepower
trim tabs, takes speed away, angle too sharp
hook the rear bottom of the hull, no speed loss

Thanks for the information, it may come in handy some day.

I also have a 16' Alumacraft with a 40 hp Tohatsu [restrictor taken out]. It will run 36 mph at 5750 rpm with the engine trimmed up about 1/3 of the way [on the trim gauge] before it starts to bounce. I probably have too much weight in the back [3 batteries, charger, and 9 gal. gas] to make it run any better.

I get about 35 mph and 5700 rpm with a little heavier load, so I am ok with the performance.

[Feesherman]

Originally Posted by Gerald

Thanks for the information, it may come in handy some day.

I also have a 16' Alumacraft with a 40 hp Tohatsu [restrictor taken out]. It will run 36 mph at 5750 rpm with the engine trimmed up about 1/3 of the way [on the trim gauge] before it starts to bounce. I probably have too much weight in the back [3 batteries, charger, and 9 gal. gas] to make it run any better.

I get about 35 mph and 5700 rpm with a little heavier load, so I am ok with the performance.

U would get better performance if u put some hook in the hull.

[Hydro]

These work for me... Heavy 1652, Four Stroke 40 with trim, 8 gallons of gas, two batteries and my big arse in the back.... Jumps on step, the faster you go the less pitch is in the tabs. WOT they are pretty much even with the bottom of the boat...

I have had them going on two years and put them thru a couple of groundings at Toledo when the water was low, stumps on the river, etc...

Good luck

[Montauk17]

Originally Posted by Hydro

These work for me... Heavy 1652, Four Stroke 40 with trim, 8 gallons of gas, two batteries and my big arse in the back.... Jumps on step, the faster you go the less pitch is in the tabs. WOT they are pretty much even with the bottom of the boat...

I have had them going on two years and put them thru a couple of groundings at Toledo when the water was low, stumps on the river, etc...

Good luck

You doing it all wrong bro take them tabs off and start beating.

[Feesherman]

Originally Posted by Montauk17

You doing it all wrong bro take them tabs off and start beating.

At least somebody learned something on this dumba$$ thread

[Montauk17]

Originally Posted by Feesherman

At least somebody learned something on this dumba$$ thread

Yep,I learned west siders strum to a different tune.

[Feesherman]

Originally Posted by Montauk17

Yep,I learned west siders strum to a different tune.

And I learned there is some serious cluelessness on dis forum

[Montauk17]

[Top Dawg]

Is that Lake Chuck Duck?^^^

[StanMan]

Kids driving around with trim tabs and whale tails goin 30 mph. Feesherman nailed it wit the cluelessness comment lol. Dont wanna love tap a boat but youll weld two anchors on it. Tapout already.

[1fastmerc]

I've done the hook in my other boat I had and it made a difference. I definitely believe on putting a hook in it verses some of the other methods.

[Spunt Drag]

Originally Posted by Montauk17

Yep,I learned west siders strum to a different tune.

Yea like a national racing championship tune.

Originally Posted by 1fastmerc

I've done the hook in my other boat I had and it made a difference. I definitely believe on putting a hook in it verses some of the other methods.

Holy $hit! Somebody wit some sense!

[1fastmerc]

Originally Posted by Spunt Drag

Yea like a national racing championship tune.




Holy $hit! Somebody wit some sense!

Lol

[Montauk17]

Only reason I welded tabs on my 1448 is so I could run with two people sitting on the back with a gas tank and battery. Before I put the tabs it would run 28mph with just me in the boat. After the tabs it would do 30mph with two people sitting on the back. This is with a 25 merc 2 stroke. If you want to bang on the bottom of your boat have at it. Tabs were a benefit for me so I was happy. If you want speed get a bullet or allison.

[Feesherman]

Originally Posted by Spunt Drag

Holy $hit! Somebody wit some sense!

Finally!!!!