Repower for 23' I/O
 

In a mixed up state of mind. Latest project is a 73 cc with a monster consul. Present power is a small block of unknown HP.
This baby is totally locked up.
I have been considering a 225 mpi V6 power plant.
Do you guys and gals think this would work or should I go with a another small block??
All input gladly accepted.

Re: Repower for 23' I/O
 

V-8 all the way

Re: Repower for 23' I/O
 

350 mpi is a great match in my opinion

Re: Repower for 23' I/O
 

I have a Scepter with a 260 Volvo I/O. While it does well, these hulls like HP to work their magic. I also have 144 gal. fuel plus the usual "other" stuff.

My 290 VP outdrive can handle substatially more than the 260, so I'm planning on 310+ HP when the time comes and if it ends up being fuel injected it could reach 350 ish or 30+% increase. JMHO.

Re: Repower for 23' I/O
 

Go with an injected V8. The torque difference is important in getting on plane. With today's materials and technology, a 350-375hp small block is as reliable as the 260hp motors of 35 years ago.

Re: Repower for 23' I/O
 

I have a 350 mpi fwc in mine,its a great match for the hull.
Pulling it out for a diesel engine I just got.Will sell the whole package engine,transom assembly and drive

Re: Repower for 23' I/O
 

Thanks for your input. Looks like the sbc is the way to go.
Wags sent pm re: your engine/drive package.
More questions will be forth coming as soon as the white stuff melts a little.

Re: Repower for 23' I/O
 

Its the mag 350 300hp

Re: Repower for 23' I/O
 

for what it's worth...

my sea craft,it's powered by merc 5.7MPI with the horizon package,bravo I drive - in my opinion,this is the best option,performance,and effciency wise.the boat gets over 2nmpg,cruises @23-24kts,and the engine runs up to it's 5000rpm limit,as it should.the engine has ran for 335 trouble free hours in the last 3 seasons.i've used these engines in numerous other repower projects,with,similar good results.
if you're not running a bravo drive,i suggest you purchase a package-"package" being engine,drive,transom plate-reason being-if you're equipped with an alphaI drive,the water pump in the alphaI drives,are,low volume,high pressure pumps,the newer vortec engines require a large volume of water,using the newer vortecs and the older drives,will cause a problem with the engine blowing head gaskets...

here's a recent trip i made on my rig - http://www.facebook.com/#!/pages/spo...n/345108625395

we ran inexcess of 62nm to the fish,the engine was never shut down-fired up @ 4:30,shut down @ 3:30 total trip distance was 125-out and back,and running and difting...total fuel used was 52g...


that v6 is a reliable engine,very powefull,but,it just doesn't have the torque needed to shove that hull..

Re: Repower for 23' I/O
 

I run mine with the alpha and a thru hull(sea strainer) to the raw water pump (bravo engine).