When two boats share the same hull type — in this case both the Starcraft Marine 170 IO 2008 and the Starcraft Marine 1700 OB SPORT 2009 are modified vee designs with aluminum construction — the buying decision usually comes down to a handful of practical questions: how many people are you putting on the water, how far do you trailer, and what does your tow vehicle weigh?

On paper these two are close siblings in the size department — Starcraft Marine 170 IO 2008 at 17,0 ft versus Starcraft Marine 1700 OB SPORT 2009 at 16,0 ft. Weight tells a clearer story for trailering families: the Starcraft Marine 170 IO 2008 tips the scales at 1 273 lbs — 1 121 lbs more than the Starcraft Marine 1700 OB SPORT 2009 at 152 lbs. That difference is meaningful if you're working within a half-ton or three-quarter-ton truck's tow rating, especially once you factor in a motor, gear, and fuel.

Both boats share a closely matched power ceiling — 150 hp for the Starcraft Marine 170 IO 2008 and 130 hp for the Starcraft Marine 1700 OB SPORT 2009. Real-world performance will come down more to which motor is actually bolted on, its load at the time, and whether it's a 4-stroke or 2-stroke setup. Fuel capacity breaks the other way: the Starcraft Marine 170 IO 2008 carries 32 gallons versus 23 gallons in the Starcraft Marine 1700 OB SPORT 2009. On a lake day that's negligible, but for coastal cruising or long reservoir runs the extra range matters.

Both boats are rated for 8 passengers — a good fit for a family of four or five plus guests. Comfort at capacity is another matter; the longer hull typically means more seat options and better weight distribution.

At this size, power-to-weight ratio matters more than outright horsepower. The Starcraft Marine 1700 OB SPORT 2009 comes in at 1 lbs per hp versus 9 lbs per hp for the Starcraft Marine 170 IO 2008. The lower the ratio the more explosive the acceleration — meaningful on a short RIB where bursts of speed, quick planing, and agility in surf or tight waterways define the experience.