Thread subject: Whaler Central - Boston Whaler Boat Information and Photos :: Overpowering a super sport 170?

Posted by Phil T on 08/23/14 - 11:24 AM
#3

I highly doubt it.

It's about propeller selection. I would first try buying the same prop included with 2" less pitch and use that for skiing, tubing and wake boarders .

For repowering:

While there are several engine choices under that weight limit, there is a sizable cost involved.Boston Whaler sells all models with Mercury motors, no exceptions. It is illegal to sell a new boat overpowered.

You will need to find a separate outfit willing to buy the "used but not used" motor, derig and install a different engine.

I would estimate swapping to a 115 hp motor DFI or 4 stroke will cost you around $5K when all done.

Modern Boston Whaler's have a high weight to horsepower ratio. Models prior to ~ 2000 are much lighter.

One example:

2003 - current Montauk, 1400 lbs, max hp of 90.
2002 and prior Montauk, 900 lbs, max hp of 100.