Sylvan Expedition 1800 Sport  2006 boat specs
Sylvan
Sylvan Expedition 1800 Sport 2006
2006
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VS
Sylvan Explorer 1700 DC 2008 boat specs
Sylvan
Sylvan Explorer 1700 DC 2008
2008
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Sylvan Expedition 1800 Sport 2006 vs Sylvan Explorer 1700 DC 2008 — Same Brand, Different Boat

The Sylvan Expedition 1800 Sport 2006 vs Sylvan Explorer 1700 DC 2008 comparison sits squarely in the category of decisions where specs alone won't tell the whole story — intended use, storage, and long-term ownership costs all factor in.

On paper these two are close siblings in the size department — Sylvan Expedition 1800 Sport 2006 at 18,0 ft versus Sylvan Explorer 1700 DC 2008 at 17,0 ft. Weight tells a clearer story for trailering families: the Sylvan Expedition 1800 Sport 2006 tips the scales at 125 lbs — 114 lbs more than the Sylvan Explorer 1700 DC 2008 at 11 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 Sylvan Expedition 1800 Sport 2006 and 135 hp for the Sylvan Explorer 1700 DC 2008. 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. Both carry nearly identical fuel loads — 31 gal and 31 gal — so range won't be a tiebreaker here.

For family outings this is probably the sharpest distinction between the two. The Sylvan Expedition 1800 Sport 2006 is rated for 7 passengers, while the Sylvan Explorer 1700 DC 2008 caps at 5. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Sylvan Expedition 1800 Sport 2006 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Sylvan Explorer 1700 DC 2008 comes in at 0 lbs per hp versus 1 lbs per hp for the Sylvan Expedition 1800 Sport 2006. 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.

Bottom line: Choose the Sylvan Expedition 1800 Sport 2006 if your priority is putting more people on the water — it handles 7 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Sylvan Explorer 1700 DC 2008 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 5 that costs less to run day-to-day.
General Boat Info
MakeSylvan
MakeSylvan
ModelExpedition 1800 Sport
ModelExplorer 1700 DC
Model Year2006
Model Year2008
Measurements / Dimensions
Beam91 in
Beam91 in
Beam - Meters2.31
Beam - Meters2.31
Beam - Inches91
Beam - Inches91
Depth - Detail25 in
Depth - Detail23 in
Depth - Centimeters63.5
Depth - Centimeters58.42
Depth - Inches25
Depth - Inches23
Weight - Detail1,250 lbs
Weight - Detail1,100 lbs
Weight - kg566.99
Weight - kg498.95
Weight - lbs.125
Weight - lbs.11
Width [transom] - Detail90 in
Width [transom] - Detail90 in
Height - Detail33 in
Height - Detail35 in
Height - Meters0.84
Height - Meters0.89
Height - Inches33
Height - Inches35
Length - Feet18
Length - Feet17
Length - Inches1
Length - Inches1
Length overall - Detail18 ft. 1 in
Length overall - Detail17 ft. 1 in
Length overall - Meters5.51
Length overall - Meters5.21
Length overall - Inches217
Length overall - Inches205
Height [transom]not available
Height [transom]LS
Body / Hull
Hull thicknessBottom: 0.100 Side: 0.086 Rib: 0.08
Hull thicknessBottom: 0.100 Side: 0.086 Rib: 0.08
Hull materialnot available
Hull materialAluminum
Hull typenot available
Hull typeModified Vee
Engine and Drivetrain
Fuel tank capacity - Detail31 gal
Fuel tank capacity - Detail31 gal
Fuel tank capacity - Liters117.35
Fuel tank capacity - Liters117.35
Fuel tank capacity - Gal31
Fuel tank capacity - Gal31
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max150 hp
Engine max135 hp
Max no of enginesnot available
Max no of engines1
Operational Info
Maximum capacity1,625 lbs
Maximum capacity1,350 lbs
Maximum people7
Maximum people5

Sylvan Expedition 1800 Sport 2006 vs Sylvan Explorer 1700 DC 2008 — Common Questions

Which is the larger boat — the Sylvan Expedition 1800 Sport 2006 or the Sylvan Explorer 1700 DC 2008?
The Sylvan Expedition 1800 Sport 2006 is the longer of the two at 18,0 feet overall. The Sylvan Explorer 1700 DC 2008 comes in at 17,0 feet, making it roughly 1,0 ft shorter — a meaningful difference in deck room and overall on-water presence.
Which is easier to trailer — the Sylvan Expedition 1800 Sport 2006 or the Sylvan Explorer 1700 DC 2008?
For trailering, the Sylvan Explorer 1700 DC 2008 has the edge at 11 lbs dry weight versus 125 lbs for the Sylvan Expedition 1800 Sport 2006. Add a motor (typically 300–500 lbs for an outboard in this class), gear, and a partial fuel load and the difference grows. Lighter is friendlier on smaller tow vehicles and on fuel economy while hauling.
Which boat can handle a bigger outboard?
The Sylvan Expedition 1800 Sport 2006 is rated to a maximum of 150 hp, giving it the larger power ceiling. The Sylvan Explorer 1700 DC 2008 tops out at 135 hp. Keep in mind that maximum ratings are just that — matching the motor to the actual load and usage pattern usually matters more than chasing the ceiling.
How many people can each boat hold?
The Sylvan Expedition 1800 Sport 2006 is Coast Guard rated for 7 passengers, while the Sylvan Explorer 1700 DC 2008 is certified for 5. Note that legal capacity and comfortable capacity aren't always the same thing — on a full day out, most experienced boaters aim for about 80% of the rated number to keep things comfortable.
Which boat has the better power-to-weight ratio?
The Sylvan Explorer 1700 DC 2008 has a better power-to-weight ratio at 0 lbs per hp compared to 1 lbs per hp for the Sylvan Expedition 1800 Sport 2006. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Do these boats require an oversize trailer permit to tow on US highways?
Both the Sylvan Expedition 1800 Sport 2006 and Sylvan Explorer 1700 DC 2008 share an 91 in beam — meaning both sit right at the 8’6" threshold that most US states use for standard-width loads. In most states you can tow at that width without a special permit, but regulations vary. Always check the rules for your state and any states you'll be passing through before your first long haul.
How do the fuel tanks compare on the Sylvan Expedition 1800 Sport 2006 and Sylvan Explorer 1700 DC 2008?
Both boats carry similar fuel loads — 31 gallons and 31 gallons respectively. Range will depend heavily on motor choice, throttle usage, and whether you're on flat lake water or coastal chop.
Are the Sylvan Expedition 1800 Sport 2006 and Sylvan Explorer 1700 DC 2008 from the same manufacturer?
Yes — both the Sylvan Expedition 1800 Sport 2006 and the Sylvan Explorer 1700 DC 2008 are built by Sylvan. That means shared dealer networks, common parts availability, and consistent build quality across the line. The choice between them is essentially a question of how much boat you need, not which brand you trust.