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Author Topic:   '63 Right size motor?
Bone Daddy posted 06-24-2003 11:00 AM ET (US)   Profile for Bone Daddy   Send Email to Bone Daddy  
What's generally the min/max hp for a motor on my 16'7" model? I'm getting rid of a 30 year old Chrysler 105 and smaller motors are definitely cheaper. Is 80 too small? Any suggestions would be appreciated.
Cpt Quint posted 06-24-2003 11:17 AM ET (US)     Profile for Cpt Quint  Send Email to Cpt Quint     
90 hp is perfect motor for old 16.7 but you need to also consider weight. for example 70 4 stroke suzuki would be about the equivilant of a 90 2 stroke rude. I saw a Montauk with this set up side by side with my 63 16.7 with 90 88 spl rude. What he is giving up in power he is certainly gaining in draft. Darn thing was sitting on top of the water at the dock with all side walls out whereas mine sits about 1 1/2 inches over the side wall at the transom. I didnt race him but i bet he could 38 to 42 mph just like me with that light a load.
JBCornwell posted 06-24-2003 12:41 PM ET (US)     Profile for JBCornwell  Send Email to JBCornwell     
Boston Whaler catalogs of the period said 100HP max, 35HP min.

I have had 100s, and both 2 stroke and 4 stroke 70s on 16-17' hulls.

My first choice by a long shot is the Suzuki/Johnson 4 stroke 70. Second choice is the OMC triple looper 70.

I have driven 16s with as little as 50 HP (Bearcat "55" at the powerhead) and they performed well.

Red sky at night. . .

Bone Daddy posted 06-24-2003 01:16 PM ET (US)     Profile for Bone Daddy  Send Email to Bone Daddy     
Well I defintely can't afford one of those 4 strokes and need something easy on the pocketbook but will still get me to the stripers. Will I lose a ton if I drop down to a 70? They are definitely cheaper!
Bigshot posted 06-24-2003 01:33 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
Nope, she'll run close to 40 and burn 2/3 the gas of a 88/90hp. Bulletproof engines those 3cyl loopers.
whalernut posted 06-24-2003 03:37 PM ET (US)     Profile for whalernut  Send Email to whalernut     
I agree, i would rather have a 60/70 3 Cyl OMC rather than my 85 h.p. Johnson, it isn`t the weight it`s the fuel consumtion, and I don`t nead all of the power it has!! I have it on a 16` Currituck, it only really neads 50-70 h.p.. I would go with a 50 2 Cyl 2-stroke, if I wasn`t fishing on Lake Erie most of the time, but I nead more speed at tomes. If my 85 ever goes, I would seriously look at a very good used 60/70 h.p. 2-stroke OMC, preferably without Tilt/Trim and Oil Injection, less to worry about, and I don`t have Tilt/Trim or Oil Injection right now, so I am used to it :) Jack.
Bone Daddy posted 06-25-2003 02:33 PM ET (US)     Profile for Bone Daddy  Send Email to Bone Daddy     
Will a 20" shaft suffice or does it need to be longer?
Bigshot posted 06-25-2003 02:56 PM ET (US)     Profile for Bigshot  Send Email to Bigshot     
20" is what you NEED!
Bone Daddy posted 06-25-2003 02:59 PM ET (US)     Profile for Bone Daddy  Send Email to Bone Daddy     
Thanks Bishot. I think I found a Yamaha Commercial 85 for a decent price.

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