New Life

This particular 1st gen looks to have one added in the 1st picture.

She does have a beautiful Teak platform that helped me get back on board. It was early, dew on the dock, yata, yata, yata. Good thing is she made it to 45 MPH later the next day. I think that is max hull speed. Will get a video this weekend.

TRBenj wrote: Capn Dan wrote: . Good thing is she made it to 45 MPH later the next day. I think that is max hull speed. Will get a video this weekend. Actually, we *suspect* the 1gsn is one of the faster hulls cc made, and therefore has decent speed potential!

Dan,
I agree with Tim that you should be getting more speed. Did you GPS the speed? What RPM is the 312 indicating? My 312 (never been rebuilt) in my X55 with the original prop runs at about 4500.Put a shop tach on your's to confirm the RPM's. What prop are you running?

It definitely will go faster then 45, I have GPS Dad's at 47 mph, and that was instantaneous top speed, because it was turning 5000 rpm's. A number of folks mentioned 5k is awful hot for the 312, so I did not let the speed build. I have been challenged with a stubborn cutless bearing so I have not had the old girl out to calibrate the tach and gather more data. Long story, but with the newer (old style cast prop) we had been seeing higher RPM's then what it used to turn with the original prop, (that was lost, hence the need for new prop). The old prop would run 47 mph at 4700 Revs for sustained WOT runs on those rare occasions that Dad would open it up - ahh wonderful memories of my youth...

Our Classic runs 45 gps at 4500 rpm with a Federal 12x13. Rebuilt 312 with an Edelbrock. We've got a 12x13 OJ that we have to try out. Hoping it will give a little more speed with a little less rpms. 5000 seems pretty hot to me for a 312.

Pete, I'll do that. We didn't even wheel it out of the garage this year. Next year is the year for the Classic. We've got to get some more work done on it.

8122pbrainard wrote: The low speed must be due to your conversion to the downdraft carb!

Yep, Dad's is running as originally configured with Side Draft Carter YH's!!!

Y blocks make good torque and run great but I would hesitate to push one past 4,500 RPM, the design of that block does not like high RPM, at least not for long.

Tim,
Any prop that's over 12", I'd have to have turned down. The 12" now is closer to the hull than I'd like it to be (about 7/8" to 1"). I've already seen some hull rash which is easy to get on a wood hull. I repaired it the last time I refinished the bottom. When the time comes, I'll call Eric(?) at OJ and see what his ideas are.

Capn Dan wrote: She is turning 5k at top speed and I don't keep her there long with only 11 hours on the new engine. I will be putting her in tomorrow and will have more to report.

8122pbrainard wrote: Put a shop tach on your's to confirm the RPM's. What prop are you running?

Dan,
The 5K is too high.

Capn Dan wrote: Is there anything stamped on this Brass prop.

Yes, under the prop nut.