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Author Topic:   power for an 11' Sport?
kevinmaines posted 08-27-2003 02:10 PM ET (US)   Profile for kevinmaines   Send Email to kevinmaines  
I recently bought a 1977 11' Sport, and I just ordered an 18hp 4stroke Tohatsu for it. Can anybody tell me what sort of performance to expect from this combo?

Also, it's set up with the old pulley steering system, and I'd love some advice on whether I should upgrade to Teleflex or just keep the pulley system. Cost as always is a factor!

Thanks everyone!

ryanwhaler posted 08-27-2003 02:39 PM ET (US)     Profile for ryanwhaler  Send Email to ryanwhaler     
I have a 15hp Mercury two stroke on my 1975 11-Sport.

How much weaght you've got in the boat will inpact the speed a lot.

With two fat people, your not gonna even plain.

I'm about 115pounds and when by myself that boat will go around 21-24mph

Good luck.

David Jenkins posted 08-27-2003 04:28 PM ET (US)     Profile for David Jenkins  Send Email to David Jenkins     
If possible, cancel the order and hang a 25 hp engine on the transom. Buy the engine second hand if you are worried about the cost. Upgrade to Teleflx.
kevinmaines posted 08-27-2003 04:33 PM ET (US)     Profile for kevinmaines  Send Email to kevinmaines     
Thanks for the feedback. I was originally planning on putting a 25hp on it, but it's only rated for 20, so I had to settle for the 18hp. No one but Honda makes a 20 anymore (and they're pretty pricey!) I quickly found out.


ryanwhaler posted 08-27-2003 09:02 PM ET (US)     Profile for ryanwhaler  Send Email to ryanwhaler     
You should be okay with the 18hp, unless you plan on putting a lot of weaght in the boat.

What is this boat going to be used for? How many people will be aboard most of the time?

SSILVER posted 08-27-2003 09:44 PM ET (US)     Profile for SSILVER  Send Email to SSILVER     
In addition to my 17 Newport I have a 1969 Starcraft 14.5' shaped very similar to a whaler w/ 25HP 1978 Johnson. That boat goes 25 MPH GPS w/ me my wife and two kids. The 25 takes a few seconds to get on plane but then realy takes off. I believe this boat is water logged and weighs more then it should, matter of fact I heard water slushing around the bow area when I was pushing it around the driveway last week. I removed the cover and there was probally 10-12 gallons of water on the bow compartment. I poked some holes drained that out and took it out tonight and I bet we gained another 2 to 3 miles an hour as the bow was higher and I was able to decrease the static trim on the outboard. I would guess you should get about the same performance from your setup considering you have a newer engine and smaller boat. From the posts I have read sounds like you could safely overpower the boat a few HP which would probally be nice if you have a couple of people aboard. Also the 25 HP does not have a tach and from the sound of the engine it could probally perform a bit better w/ a slightly less pitched prop, but this is just a beater boat for fishing w/ the guys maybe some duck hunting and for the money I have invested I am very happy with it and am going to leave well enough alone.

Have fun!


captbone posted 08-30-2003 08:40 PM ET (US)     Profile for captbone  Send Email to captbone     
The Evinrude/ johnson 20, 25, 30, 2 cyl. 2 cyc. outboards are all the same and many an 11 has the 20 Johnson/Evinrude. Go with the the 25/30 Johnson new for a cheaper price and get the teleflex.
whalerlongisland posted 09-01-2003 09:25 PM ET (US)     Profile for whalerlongisland  Send Email to whalerlongisland     
I recently purchased a 11' sport and it was equipped with a 9.9, way too slow, i put a new 2003 25 hp MErc on it, it rues great, even with 3 adults.
Perry posted 09-01-2003 11:40 PM ET (US)     Profile for Perry  Send Email to Perry     
Honda's new 20 hp 4 stroke weighs 100 lbs and would be a good motor on an 11 footer. A little expensive though.
kevinmaines posted 09-03-2003 02:19 PM ET (US)     Profile for kevinmaines  Send Email to kevinmaines     
Thanks for all the feedback everyone. I've got the 18hp Tohatsu installed, but I'm still waiting for some throttle/gear cables to arrive before I can try her out. I'll let you know how it handles!


ryanwhaler posted 09-04-2003 11:02 PM ET (US)     Profile for ryanwhaler  Send Email to ryanwhaler     
Test it yet?

What do you think?

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