200 YAMAHA on 23' SeaCraft

[FAS]

getting heavy ....I have a late 70's 23 with a new inline 4 200 hp yami , in my neighborhood, I will check into it as soon as possible.both the 150 and 200's are torqued four stroke beasts,imho!!! besides who's gonna fix a glorified ficht.Isay if they run good they are great,if you have a problem,good luck

[SnafuFishTeam]

Originally Posted by bumpdraft

If the original poster ever comes back and tells us how it works, after he buys it on your recommendation, that would be relevant.

Yup. Agreed.

[kmoose]

Sorry, I just don't think an inline 4 cylinder is going to perform in real world conditions at any satisfactory level. 200 hp is pretty marginal for ponies on an offshore hull rated for 500 hp. Maybe a bay boat it is fine but you have to think about the torque needed to hold plane in seas and the overall requirements for load on a day offshore. Would it work... sure but it isn't going to be impressive at the least.

[SnafuFishTeam]

Originally Posted by kmoose

Sorry, I just don't think an inline 4 cylinder is going to perform in real world conditions at any satisfactory level. 200 hp is pretty marginal for ponies on an offshore hull rated for 500 hp. Maybe a bay boat it is fine but you have to think about the torque needed to hold plane in seas and the overall requirements for load on a day offshore. Would it work... sure but it isn't going to be impressive at the least.

1. Max HP on a 23' cc was 400 hp.
2. I fish hardcore in South Florida and run to the Bahamas. Never has my boat been a dog even fully loaded with 100 gallons on board.

[Fr. Frank]

Originally Posted by SnafuFishTeam

1. Max HP on a 23' cc was 400 hp.

Not necessarily. It depends upon the year. I have rigged quite a few 23's with an original placard that said "Max HP=500. True, most got single 235's. Some got twins from t/115's, to t/235.
And I have owned two such rated hulls myself. 1st one a '77 23' SF, originally rigged with '78 T/235 Evinrudes. 2nd one a '78 23' Savage, rigged with twin Merc 225's. (Yes, the Savage with the Mercs was faster WOT than the Evinrudes by all of 2 mph). Here's the Savage specs:
http://www.classicseacraft.com/Savage23.htm

AND just for the record, the 1983 23' SeaVette with the transom cutout for twins was available placarded for 600 max OB hp.
We sold one at Waterway Marina in late 1983, and then sent across the street to Frank Brown's for rigging and motors. He rigged it with twin big-block 300 ELPT Mercury motors, that reportedly topped out at 77 mph after playing with motor height, props, and after installing nose cones. This VDH thing is for real!

[SnafuFishTeam]

Originally Posted by Fr. Frank

Not necessarily. It depends upon the year. I have rigged quite a few 23's with an original placard that said "Max HP=500. True, most got single 235's. Some got twins from t/115's, to t/235.
And I have owned two such rated hulls myself. 1st one a '77 23' SF, originally rigged with '78 T/235 Evinrudes. 2nd one a '78 23' Savage, rigged with twin Merc 225's. (Yes, the Savage with the Mercs was faster WOT than the Evinrudes by all of 2 mph). Here's the Savage specs:
[url]http://www.classic

Glad I have all the original documentation on the boat. Mine came with twin 115 Mercs. No doubt I have seen a number of these with twin 235 OMCs.

[kmoose]

Here is a pretty fair comparison of the f150 vs the i4 f200. Not a whole lot of difference for adding 50 hp. Do you think the comparison would remain as relative when going from a 200 4 cyl to a 250 V6? I doubt it.

[martin]

Dave you mean the engine was to high @ 25".. Yes my experience was with a 25' trophy wa. It had twin/150s .. He went with a single 225 and had to extend the foot cause the motor would cavitate and slip when trimming ,choppy conditions and turning... The boat did sit higher than before with the extra weight not being there. Like a couple inches higher...

[dave s]

Yes, the 25" was sitting too high; I was thinking of my 30".
I like how the 30" powerhead sits higher up out of the water; I got back wash on the 25"s when I slowed down too fast.

[capttodd]

Yes Martin, you have to run a 30" shaft on a twin Hermco bracket.