OB 15

Power Boats only. Please include the boat type in your question.
Post Reply
CraigLam
Frequent Poster
Frequent Poster
Posts: 123
Joined: Fri Sep 16, 2011 12:34 pm
Location: Long Beach

OB 15

Post by CraigLam »

I want to update, so I hope this is the way on this thread. The Bearcat 55 restoration is progressing well. Big question. What's the big difference in resins. I know that West system is good. What about just regular resin. Regular resin is about $35.00 around town. West System is about $100.00! :doh: Couldn't I just use regular resin for my boat?
Last edited by CraigLam on Tue Oct 25, 2011 2:48 pm, edited 1 time in total.



User avatar
gstanfield
* Bateau Builder *
* Bateau Builder *
Posts: 4631
Joined: Sun Jan 10, 2010 5:09 pm
Location: Rolling Hills, WY

Re: OB 15

Post by gstanfield »

Not gonna be a problem. People overpower these boats all the time, but JM designs them light and strong and then under-rates them so you're fine :D

If you're worried about it just put an extra layer of biax on the transom or a little stronger knees, but I'd think it will be fine just as designed 8)
Previous builds: FL14, NC16, and others...

Current build: FL14 (+10%)

User avatar
AussieBoater
Active Poster
Active Poster
Posts: 301
Joined: Wed Apr 14, 2010 6:46 am
Location: Wauchope, Australia

Re: OB 15

Post by AussieBoater »

I think you'll find AdamG is running a 70 hp on his OB15, I'd say the weight would be the thing to look at... if you think it is not too heavy, go for it.
Paul - located at
31 degrees, 27.6 minutes South
152 degrees, 45.0 minutes East

User avatar
AdamG
* Bateau Builder *
* Bateau Builder *
Posts: 856
Joined: Fri Nov 14, 2003 1:00 am
Location: Paige, TX, USA

Re: OB 15

Post by AdamG »

Well, it's really only a 60, but it would be a 70 with the 70 carb on it, more or less. Still, it can take the HP so long as you beef up the transom and the transom braces a bit. Just don't get crazy with radical turns while under full throttle.
Adam G
GF-12 May 2004
OB-15 July 2006

CraigLam
Frequent Poster
Frequent Poster
Posts: 123
Joined: Fri Sep 16, 2011 12:34 pm
Location: Long Beach

Re: OB 15

Post by CraigLam »

I'm wondering, with a restored Bearcat 55 with WOT, on the back of an OB 15, what would be top speed at WOT would be. Some say 25 mph. I know there is alot of factors involved. I had an old 59 Merlin with a 40 h.p. Johnson and that did 30 mph. I would think a 60 h.p. engine would do alot faster. One of the reasons I picked the OB 15' Skiff was the h.p. rating (50h.p.). Well, I'll tell ya, once I put her in the water with WOT - I'll let ya know. :wink:

User avatar
gstanfield
* Bateau Builder *
* Bateau Builder *
Posts: 4631
Joined: Sun Jan 10, 2010 5:09 pm
Location: Rolling Hills, WY

Re: OB 15

Post by gstanfield »

I'm not sure what it'll be, but I'll bet you that it's well above 25MPH. :wink:
Previous builds: FL14, NC16, and others...

Current build: FL14 (+10%)

User avatar
AdamG
* Bateau Builder *
* Bateau Builder *
Posts: 856
Joined: Fri Nov 14, 2003 1:00 am
Location: Paige, TX, USA

Re: OB 15

Post by AdamG »

With my 60, I'm getting close to 40mph, but not quite there yet. The drag of the hull seems to be reaching a practical limit.
Adam G
GF-12 May 2004
OB-15 July 2006

DAYTRIP
* Bateau Builder *
* Bateau Builder *
Posts: 828
Joined: Wed May 31, 2006 10:32 pm
Location: North Palm Beach
Location: NORTH PALM BEACH

Re: OB 15

Post by DAYTRIP »

My OB 15 had a 40hp mariner. When it ran right it did 35mph. Really great boat. I wish I had kept it and powered it with a new 40 or 50. Good luck!

Steven
* Bateau Builder - Expert *
* Bateau Builder - Expert *
Posts: 3148
Joined: Thu Aug 22, 2002 1:00 am
Location: Burleson Texas

Re: OB 15

Post by Steven »

bumped this thread(topic)

CraigLam
Frequent Poster
Frequent Poster
Posts: 123
Joined: Fri Sep 16, 2011 12:34 pm
Location: Long Beach

Re: OB 15

Post by CraigLam »

Hi, everybody. I'm over here now. I guess I'm stuck with OB 15. I think the OB can stand for "Old Bearcat". Anyway, I worked on the motor today and had a lot of godd luck with the results.

Post Reply

Who is online

Users browsing this forum: No registered users and 7 guests