Sylvan Expedition Sport 1700 DC 2008 boat specs
Sylvan
Sylvan Expedition Sport 1700 DC 2008
2008
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VS
Sylvan Mirage Fish 818 2006 boat specs
Sylvan
Sylvan Mirage Fish 818 2006
2006
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Sylvan Expedition Sport 1700 DC 2008 vs Sylvan Mirage Fish 818 2006 — Same Brand, Different Boat

The Sylvan Expedition Sport 1700 DC 2008 vs Sylvan Mirage Fish 818 2006 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 Sport 1700 DC 2008 at 17,0 ft versus Sylvan Mirage Fish 818 2006 at 18,0 ft. At 122 lbs and 134 lbs respectively, both sit in a similar weight class — either should pair comfortably with most mid-size SUVs and half-ton trucks, though always confirm your specific tow rating with the motor added.

The power gap is worth calling out. Rated to 135 hp, the Sylvan Expedition Sport 1700 DC 2008 has a 85-hp advantage over the Sylvan Mirage Fish 818 2006's 50-hp ceiling — enough to notice on acceleration and at cruising speed, particularly with a full passenger load.

For family outings this is probably the sharpest distinction between the two. The Sylvan Mirage Fish 818 2006 is rated for 9 passengers, while the Sylvan Expedition Sport 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 Mirage Fish 818 2006 could be the deciding factor.

At this size, power-to-weight ratio matters more than outright horsepower. The Sylvan Expedition Sport 1700 DC 2008 comes in at 1 lbs per hp versus 3 lbs per hp for the Sylvan Mirage Fish 818 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.

The Sylvan Mirage Fish 818 2006 is an inflatable design — lighter, easier to store, and quicker to launch from a beach or dock without a slipway. The Sylvan Expedition Sport 1700 DC 2008 is a rigid hull, which typically offers a more confident ride in chop and easier maintenance over the long term.

Bottom line: Choose the Sylvan Mirage Fish 818 2006 if your priority is putting more people on the water — it handles 9 passengers and at 18,0 ft it has the deck room to back that rating up comfortably. The Sylvan Expedition Sport 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 Sport 1700 DC
ModelMirage Fish 818
Model Year2008
Model Year2006
Measurements / Dimensions
Beam91 in
Beam96 in
Beam - Meters2.31
Beam - Meters2.44
Beam - Inches91
Beam - Inches96
Depth - Detail25 in
Depth - Detailnot available
Depth - Centimeters63.5
Depth - Centimetersnot available
Depth - Inches25
Depth - Inchesnot available
Weight - Detail1,220 lbs
Weight - Detail1,340 lbs
Weight - kg553.38
Weight - kg607.81
Weight - lbs.122
Weight - lbs.134
Width [transom] - Detail90 in
Width [transom] - Detailnot available
Height - Detail37 in
Height - Detailnot available
Height - Meters0.94
Height - Metersnot available
Height - Inches37
Height - Inchesnot available
Height [transom]LS
Height [transom]not available
Length - Feet17
Length - Feet18
Length - Inches1
Length - Inches3
Length overall - Detail17 ft. 1 in
Length overall - Detail18 ft. 3 in
Length overall - Meters5.21
Length overall - Meters5.56
Length overall - Inches205
Length overall - Inches219
Body / Hull
Hull materialAluminum
Hull materialnot available
Hull thicknessBottom: 0.100 Side: 0.086 Rib: 0.1
Hull thicknessnot available
Hull typeModified Vee
Hull typenot available
Engine and Drivetrain
Max no of engines1
Max no of enginesnot available
Fuel tank capacity - Detail24 gal
Fuel tank capacity - Detailnot available
Fuel tank capacity - Liters90.85
Fuel tank capacity - Litersnot available
Fuel tank capacity - Gal24
Fuel tank capacity - Galnot available
Fuel typeGas
Fuel typeGas
Drive typeOutboard
Drive typeOutboard
Engine max135 hp
Engine max50 hp
Operational Info
Maximum capacity1,350 lbs
Maximum capacity1,750 lbs
Maximum people5
Maximum people9
Pontoon and Inflatable Specific
Tube diameternot available
Tube diameter23 in
Tube gaugenot available
Tube gauge.080 in
Number of tubesnot available
Number of tubes2

Sylvan Expedition Sport 1700 DC 2008 vs Sylvan Mirage Fish 818 2006 — Common Questions

Which is the larger boat — the Sylvan Expedition Sport 1700 DC 2008 or the Sylvan Mirage Fish 818 2006?
The Sylvan Mirage Fish 818 2006 is the longer of the two at 18,0 feet overall. The Sylvan Expedition Sport 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 Sport 1700 DC 2008 or the Sylvan Mirage Fish 818 2006?
For trailering, the Sylvan Expedition Sport 1700 DC 2008 has the edge at 122 lbs dry weight versus 134 lbs for the Sylvan Mirage Fish 818 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 Sport 1700 DC 2008 is rated to a maximum of 135 hp, giving it the larger power ceiling. The Sylvan Mirage Fish 818 2006 tops out at 50 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 Sport 1700 DC 2008 is Coast Guard rated for 5 passengers, while the Sylvan Mirage Fish 818 2006 is certified for 9. 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 Expedition Sport 1700 DC 2008 has a better power-to-weight ratio at 1 lbs per hp compared to 3 lbs per hp for the Sylvan Mirage Fish 818 2006. A lower number means quicker acceleration and faster time to plane — the number that actually matters most on short, sporty boats like these.
Which boat is wider, and does it affect trailering?
The Sylvan Mirage Fish 818 2006 measures 96" wide, compared to 91" for the Sylvan Expedition Sport 1700 DC 2008. The US standard-width towing limit is 8’6" (102") in most states — anything over that may need a wide-load permit. Confirm your specific route requirements with each state's DOT.
Are the Sylvan Expedition Sport 1700 DC 2008 and Sylvan Mirage Fish 818 2006 from the same manufacturer?
Yes — both the Sylvan Expedition Sport 1700 DC 2008 and the Sylvan Mirage Fish 818 2006 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.