shorty lower or extension box?
 

to raise x-dim on an old single engine v hull what is a better route? Shorty lower or an extenmsion box with a lift in it?


what are the pros and cons of each setup?

Puder,
I'm in the same situation. The shorty lower is the easiest and should be the first thing to try. It is an easy bolt on and if it doesn't work then you can go to the next step.
An extension box is a pretty serious project. If you don't have full hydraulic steering you will have to , and you might have to pull the motor out to get the inner transom plate off. Save the tough stuff for the last thing .
Just my opinion

I would go with what 26 say's, you don't see many ext. boxes on single eng boats? but you hear of shorter drives, try 2'shorter, what are other people doing?

engine is out. current transom assmble is on. but it is very easy to change.

So you can't run the stock steering huh??? That is what i was affraid of.

why don't single engine boats run extension boxxes? Any particular reasoning? I would thing teh extension box woudl set the drive back further and give it mroe leverage when trimmgin in addition it hough extension boxxes allowed the prop to be in "cleaner" water. PLus teh added benefit of the raised x-dim

I've seen X-boxes on several singles.

AND I've seen them on every fast outboard I've ever been around (they call them jackplates).

With the DRAMATIC difference you get on an outboard, I'd expect an X-box to help an I/O as well.

(for the record, I've got ONE +3 IMCO box and am looking for another for my 311).

yes, you have to run full hydraulic dual ram external steering.

Ive been told that if you put a neutral ext box on, it's like lowering your X dim 3". So if you put a box on that raises the X 3", you are back where you started from, except your boat will run like a longer one.

engine is out. current transom assmble is on. but it is very easy to change.

So you can't run the stock steering huh??? That is what i was affraid of.

why don't single engine boats run extension boxxes? Any particular reasoning? I would thing teh extension box woudl set the drive back further and give it mroe leverage when trimmgin in addition it hough extension boxxes allowed the prop to be in "cleaner" water. PLus teh added benefit of the raised x-dim

Puder, extenson box is a winner. Boat will handle better and yes you get more leverage. Now, if you can do both the short lower and the box you will see some real gains, the box will give you back some of the bow lift you lose with the short drive. Less drag as you have less lower unit in the water should give some speed.

Puder,

your box is full.

its been emptied