Repower or not ?

[Just One More Cast]

Went from a 17 to 15 pitch yesterday and saw 6K but lost 2+ MPH. Today I'll run a 16 pitch SS and see what happens.

[fishmonkey]

REW H1 13x19
Motor is at the second hole
Cavitation plate is 3/4" above the center of the hull
air temp low to mid 90's boat runs right now trimed out gauge reads about 1/2 5600 43 MPH by GPS.
Thanks
Ahead of time
Don

[REW]

Don,
Can you trim the motor out high enough to get the boat to porpoise or bounce? Or, when trimming up, does the prop start to blow out before you get enough bow lift to make any bow bounce?

When running wide open with the motor trimmed as high as possible - just before prop blow out, where is the splash line located on the boat?

The general rule of thumb for a well performing boat is that the splash line - or where the bow enters the water should be at about the 1/3rd point up from the transom, or in your case, about 6 feet from the transom. If you find that your splash line is at mid ship or 9 or 10 feet from the transom, you need to try a prop that can give you more bow lift.

Also, if you do find that your bow is too deep in the water, can you do an experiment by removing weight from the bow for testing.

For example, disconnect your bow trolling motor and lay it in the back against the transom. If you have any heavy weight in bow storage areas, or a bow livewell, empty the livewell and take the stuff from the bow storage and put against the transom.
If you have trolling batteries in the bow of the boat, temporarily disconnect them, and set them on the floor next to the transom.

Now, with any bow weight removed, take the boat out for a run and try to trim the motor as high as possible and see where your water splash line is located, and how you are doing for top speed.

Good luck
REW

[1860Angler]

Repower for 20 more HP on a 13 year old boat, absolutely not. Get the current boat and motor you have setup correctly with motor height and prop, definitely. If that doesn't do the trick then keep the boat and motor you have or sell it and by a different one that has a max HP motor on it. You will never get your money out of a 13 year old boat and a new motor unless you plan on keeping it forever.

[REW]

1860,
You are making your decision, based on money pay back.

The poster was asking the question, because he wanted more speed.

Remember, a boat is nothing more than a hole in the water that you dump money into. No one ever comes out on a boat purchase. It is simply an expensive tool that we all use to catch fish.

Depending on your financial level, the amount of loss is dependent on your needs to remain current, remain fast, and satisfy your inner wishes.


Lets say that a person buys a new 20 foot ranger with a 200hp engine on it, and then fully rigs it with all of the latest electronics, trolling motor and kicker. What is the total bill for this purchase.

Then, the same person comes along and sells the rig 3 years later. How much does that same person get for that rig that he purchased 3 years earlier?

This is real $$ out of your own pocket, no trade in and no sponsors to pick up the tab.

Be safe
REW

[turtle chain]

Originally Posted by 1860Angler

Repower for 20 more HP on a 13 year old boat, absolutely not. Get the current boat and motor you have setup correctly with motor height and prop, definitely. If that doesn't do the trick then keep the boat and motor you have or sell it and by a different one that has a max HP motor on it. You will never get your money out of a 13 year old boat and a new motor unless you plan on keeping it forever.

or make a trade on a slightly used 150 or 175?? that may work$$$ better?? If it were me I would address this issue as a slug of a boat wouldn't be on my lift I would rather be with out a boat for a while and save for the right set up! the way a boat handles and performs is way more important than the cosmetic stuff that can be fixed ,If it were me I would raise the motor and borrow a prop to try and or re power or sell my 2 cents

[NMG]

Assuming he gets the boat setup correctly and his RPM's to where they need to be, I can't imagine it would be a "slug". A speed demon no, but it should perform very well. If it's running 43 MPH at 5,600 RPM in low to mid 90's, it's probably a 45 MPH boat in ideal conditions. With a heavy load and propped for that, it should still hit 40 I would think.

[turtle chain]

Originally Posted by NMG

Assuming he gets the boat setup correctly and his RPM's to where they need to be, I can't imagine it would be a "slug". A speed demon no, but it should perform very well. If it's running 43 MPH at 5,600 RPM in low to mid 90's, it's probably a 45 MPH boat in ideal conditions. With a heavy load and propped for that, it should still hit 40 I would think.

MPH inst as important as the hole shot and how she handles if it jumps up on plane with a load and runs 35 or 40 that would be fine but if you have the throttle pegged to do it that will cost you some fuel ??

[NMG]

I wouldn't think that the fuel consumption differences between a 130 and a 150 would be all that great. They would certainly be close enough that you would never recoup the cost of the upgrade via fuel savings alone.

[turtle chain]

Originally Posted by NMG

I wouldn't think that the fuel consumption differences between a 130 and a 150 would be all that great. They would certainly be close enough that you would never recoup the cost of the upgrade via fuel savings alone.

I agree but the differance between a150- 175 pro XS or e tek over the Honda just might ??With my 19 ft I get right up on plane and can cruse heavy @ 30 mph half throttle that saves on fuel $$