Inboard Experts

[GetReel]

I sent you a PM. Stay as the boat was originally set up...to match the prop, at the end of the day. the original prop is about the best you can do with a new 350. Ask Craig, he and I went thru this for a year and spent too much money to find this out! Good luck.

[Miles Offshore]

Are you positive that it is a counter rotation motor? Reason I ask is because the literature doesnt specifically say but the nomenclature is the same for our inboard center consoles.


http://www.classicseacraft.com/Savage23.htm

you didnt say if your wheel was left or right handed??

general guide if you have a normal rotation motor is

1-1 gear- right handed wheel
1.5-1 left handed wheel
2-1 right handed wheel-

[bdolnik]

Mechanic said it was counter rotating, I wouldn't have even known to check until I started seeing the different models on the web. It's a Velvet drive 1.5-1, so looks like that confirms it.

Some had said that most motors now are conventional and they turn them a different direction in the transmission. This is true for the newer Velvet Drive 5000 (which are much shorter) but not for the Velvet Drive 10-17 that fits with this shaft, the motor itself has to be designed to turn differently.

I was just about to say screw it and pull the trigger on a raw water cooled Barr for $5200 and a new Velvet Drive for $2200 and I could be in the water next week, however the PM from Jeff has me thinking... so Jeff, I'm PM'n you back

I just want to have it in the water to use for right now... all the fix up can come later as time permits.

[MarkR]

Just when I thought I has become an expert

My inboard Sceptre has a RH prop on a V-drive with a Chevy 350 Marinepower and I don't know if it is RH or LH. I know the bell housing is marked, so I'll check.

As far as reasons for an offset in the shaft/rudder setup, not sure either, but I always thought it was just to allow shaft removal.

[Gary Hill]

Hello,
I put in a new motor 2 years ago and went with marine power, it seemed lke the best set-up, with the heat exchanger in front of the motor, 350/315 HP and a 1.5-1 velvet drive.
The old motor was right hand turn trans and wheel (1.5-1 trans). I also went with a carb motor since I can fix it (I hope). I had 4" extension put in, the old motor had them and I looked at Craig's and his had them and a couple friends SEAVEE's also had them and glad I did. The owners manual indicated that water intrusion would void any help from them. I have a 17/16 prop and turn up 4600 RPM's, at 3100 RPM's I run about 26-27 MPH at 10.4 gallons per hour.
My brother has had several go fast boat with twin or triple motors and when he had a problem the compter woud try to compensate until he had a good problem.

[riprunner]

I have a 350 MPI left hand wheel on a 23 CC with a 1.5-1 transmission as well. The boat oringally had a 1.1 transmission that we swapped out because sail boats were passing us. The new one we put in was an older transmission that was originally right hand but we converted it over to configure it with the new engine. You could do this with the older ones I guess.

At 3200rpm I'm running 19-20knots on average at 10.5GPH and I'm spinning a 15/17 wheel. This seems a bit slower than knot working's boat. Any suggestions....?

[GetReel]

I'm hitting all the IB posts, slow in the office. Your prop is not sized correctly, the spec is 16 x 17 so I would guess thats the reason, also seems like your fuel consumption is a little high and may also be due to the prop. I am turning 16 x 16 4 blade at 1 and 1/2 tranny, 3200 is about 21 nph, depending on tide and wind, averaging about 8 gals per hour fuel injected, so you are close to typical numbers, the other post was in MPH so I think he was close also.I have played with the props and the original spec is the best, i kept my 4 blade after adjustments because I spent so much on it

[Gary Hill]

The engine need's to the recommended RPM's in all cases, if not it's like driving on the interstate in 3rd and you need to shift up. Craig's prop I used to get a idea where to go would only turn 4200 RPM's, like I said I'm running a 17 x 16 prop, which the prop shop did do some work on and I don't remember what that was.

[riprunner]

What is everyone else cruising at with thier 23 inboards?

I really hate to spend $500 on a new prop right now, but if everyone is 3-4 knots faster at cruise and getting better economy it seems like an expense well worth it.

[GetReel]

The original spec is 16 x 17, 3 blade, 5* degree cup LH on a 1.5 tranny. I tried a 17 and it too fat amd loud, the 15 spins in the hole.