Originally Posted by docmirror

Very nice progress. I have a few suggestions from the cheap seats. many lakes nowaday prohibit O/T exhaust, or they must have a diffuser in them. The only exceptions are race boats in competition. Not sure about your plans for which lake, but be advised. Diffusers have to be USCG approved type so - $$$$$$.

When you make the mounts for the stringers, use longer pieces than you see in most boats. If you use the common 3-4" long bits I've seen some of them pulled out of the stringer after it gets punky. So, I advise using 8" angle, with a large plate on the other side to distribute load. This is going to be more important if you go with a higher torque system like the blower from Dave.

Also, there used to be a question about solid or damping mounts. Since the pump, and the drive spline are solid side to side, I always think it's best to go with solid mounts and just live with the vibration in the hull. It will vibrate, so be ready for that. Some guys get tired of it if they have poor seats, but you can put a viscous mount under the seat so your *** doesn't get numb after a few hours of riding around.

So, I'd go with water logs, and through transom, or get diffusers. Solid long mounts, and some seat dampers to the hull. It looks like fun, I wish I could come up and help out. You're doing fine work there.

Edit: I just went back and looked at the hull bilge pics and you already have the Alum stiffeners in there, so ignore my blather about the longer than normal engine mounts. It's already taken care of.

Originally Posted by DR

Even a little ole 1963 Fiberglass boat that won the Miami to Bimini Offshore Race that same year.


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Originally Posted by Tass 928

Dave....I have admired that boat for a long time. I was not aware it was restored or even still around. A "vintage" offshore boat would be fantastic project.

Originally Posted by James Bailey

The unit next door to 928 International was rented for a while by some "boat guys". They specialized in fiberglass repair interior work. They often were replacing floors, stringers etc in relatively small trailered boats. They would cut away everything but the outer shell and replace all the wood....with new wood. Then glass it all in.
The comment..." pulled out of the stringer after it gets punky. " just reminded me of the guys next door and the number of boats I see on Craigs list which mention soft spots in the floor or floor recently replaced.
Tass's boat is obviously not going to be in the water much or stored outside without a cover and should be great fun ! The last boat I bought was a 21 foot SCARAB 1987 with a 350 for my daughter about 1 1/2 years ago (Her money) and then trailered it to Texas for her.

Originally Posted by Tass 928

Jim, That soft-floor syndrome is one of the things that put me off with the original donor boat (blue checkmate in post above). The fix is tedious and miserable work. My new donor has no "floor" other than the actual shell of the boat. The full length stringers are a huge intrusion on the people space but thats where the strength comes from. I originally planned a v-hull with reasonable free board figuring I might get more use out of it. When this hi-po hull came along, all that went right out the window

Originally Posted by Tass 928

I actually have full set of 928 marine conversion parts, including water cooled exhaust and closed loop cooling that I chose to not use on this build. They are for an S4 engine but could be adapted. I'm saving them for a future project.

Originally Posted by tilac999

How rare are those and where on earth did you find them?

Originally Posted by tilac999

BTW Love this project!

Originally Posted by Tass 928

Blasted phone dials are back and now in the hands of the powder coater. While handling these things it occurs to me what a really nice wheel they are. The quality is amazing and for thier time, the styling was pretty wild.