Moderated Discussion Areas
ContinuousWave: Whaler Performance
posted 02-23-2004 03:09 PM ET (US)
I have a '78 Newport, and currently it has a an old 4hp
Johnson Light Twin for a kicker. It is underpowered, but the main problem is it is not a dependable starter. I boat on Lake Superior, and need a good backup motor, 5-15 HP. A 4cycle would be nice because of less fumes while trolling. There doesn't seem to be much info on the reliability of the new B&S 5HP. I need suggestions, new or used, what would be best (retired, not a lot of $)?
posted 02-23-2004 03:25 PM ET (US)
4hp should be enough, try a different prop. I do not think those B&S are worth it, at $800 or so, not exactly cheap and I bet resale is about $100 in a few years. Best bet is finding a nice 4-6 hp on E-Bay or a local paper in mint shape. any more than 6hp and you are wasting your money being a 15 is not gonna do much more than a 6 will(1-2mph max).
posted 02-23-2004 07:03 PM ET (US)
I agree with Bigshot...after doing a lot of research on this and other boards, I decided to go with a 5hp 4-stroke merc...got it at a good price, just put it on my 1989 Newtauk and off it went...starts and runs great and got me out of a couple of binds last year...this year I plan to do some trolling with it...at 5hp, it really did a nice job pushing the boat along with a full load and 2 others in the boat...don't have any numbers from the gps but like I said, pushed it just fine...if you search deep enough, you'll find some equations on hull speed/hp/planning vs. displacement hulls...the hull will only go so fast until it'll jump up on plane...before that any horsepower below that theoritical number will just push it along as a displacement hull...between 6-7mph...which is just at 5-8hp...above that...you're still going to go the same speed...I'm sure there's others on this board who can explain it better than myself...just wanted to give you my experiences...
ps...what about Tom's 8hp 4 stroke...looks great and would do the job just fine...and save yourself a few $...but then there's shipping....
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