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Re: LM 18 SSI GA

Posted: Mon Nov 28, 2022 4:51 pm
by Cbuf
What HP did you go with?

Looks great.

Re: LM 18 SSI GA

Posted: Mon Nov 28, 2022 9:06 pm
by Edd
Cbuf wrote: Mon Nov 28, 2022 4:51 pm What HP did you go with?

Looks great.
Suzuki 30, I was trying to keep it light.

Re: LM 18 SSI GA

Posted: Tue Nov 29, 2022 10:23 am
by Cbuf
Is that a 4 blade prop? I tried several props and because the boat is so light I found that a 3 blade is much faster and the boat doesn't require the lift of the 4 blade. Just food for thought. I would think you should be able to hit 30 mph especially because you built light.

great job.

Re: LM 18 SSI GA

Posted: Wed Nov 30, 2022 7:37 pm
by Edd
Cbuf wrote: Tue Nov 29, 2022 10:23 am Is that a 4 blade prop? I tried several props and because the boat is so light I found that a 3 blade is much faster and the boat doesn't require the lift of the 4 blade. Just food for thought. I would think you should be able to hit 30 mph especially because you built light.

great job.
It’s just the stock aluminum prop. I’d like to try another one. I messed up when I mounted the Jack plate and the engine sits too low. The cavitation plate is about 2” below the hull with it jacked all the way up. It should help when I get that straightened out.

Re: LM 18 SSI GA

Posted: Thu Dec 01, 2022 10:08 am
by Cbuf
If it helps I built mine heavy, ( Livewell, trolling motor, poling platfoam, with a 50 hp). My cavitation plate is about 1.5 inch above the bottom and I'm thinking of going one more hole up. Also, the transom as designed (or at least how I built it) was too steep. I had to install motor shims to get more negative trim.

Re: LM 18 SSI GA

Posted: Thu Dec 01, 2022 12:13 pm
by Edd
The negative trim is good. I definitely need to get it lifted though.

Re: LM 18 SSI GA

Posted: Thu Dec 01, 2022 8:07 pm
by TomW1
Chuf, when you tried your 4 blade props were there pitch size at least 2" smaller than your 3-blade pitch. The most in speed you should lose is 2-3 mph. Edd if you would like I would be glad to work up a new prop size for you if you would like. Tom

Re: LM 18 SSI GA

Posted: Fri Dec 02, 2022 8:20 am
by Reid
Edd,

Really nice job on the LM!!!! Always nice to see some fish in the cooler!

-Reid

Re: LM 18 SSI GA

Posted: Sun Dec 04, 2022 8:05 pm
by Edd
TomW1 wrote: Thu Dec 01, 2022 8:07 pm Chuf, when you tried your 4 blade props were there pitch size at least 2" smaller than your 3-blade pitch. The most in speed you should lose is 2-3 mph. Edd if you would like I would be glad to work up a new prop size for you if you would like. Tom
Yeah I’m open to suggestions, thanks 👍🏻