Detailed Evaluation & Buyer Recommendation
Formula 310 Sun Sport 2007 vs Formula 400 FX8 2011 — Same Brand, Different Boat
The Formula 310 Sun Sport 2007 vs Formula 400 FX8 2011 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.
Size is the most obvious dividing line here. The Formula 400 FX8 2011 measures 41,5 feet overall (2011), giving it roughly 10,5 additional feet of deck space compared to the Formula 310 Sun Sport 2007 at 31,0 feet (2007). Weight tells a clearer story for trailering families: the Formula 310 Sun Sport 2007 tips the scales at 975 lbs — 804 lbs more than the Formula 400 FX8 2011 at 171 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.
For family outings this is probably the sharpest distinction between the two. The Formula 400 FX8 2011 is rated for 12 passengers, while the Formula 310 Sun Sport 2007 caps at 9. If you're regularly pulling extended family or a group of friends onto the water, the extra seats on the Formula 400 FX8 2011 could be the deciding factor.
Bottom line: Choose the Formula 400 FX8 2011 if your priority is putting more people on the water — it handles 12 passengers and at 41,5 ft it has the deck room to back that rating up comfortably. The Formula 310 Sun Sport 2007 is the smarter pick if you want a lighter, easier-to-trailer boat rated for 9 that costs less to run day-to-day.
General Boat Info
Model310 Sun Sport
Model400 FX8
Model Year2007
Model Year2011
Measurements / Dimensions
Beam9 ft. 6 in. (2.9 m)
Beam11 ft. (3.35 m)
Beam - Meters2.9
Beam - Meters3.35
Beam - Inches114
Beam - Inches132
Bridge clearance - DetailLight Load: 6 ft. 0 in. (1.83 m) Light Load w/ Arch: 8 ft. 8 in. (2.64 m)
Bridge clearance - Detail10 ft. 6 in. (3.2 m) With Mast Light: 11 ft. 6 in. (3.51 m)
Bridge clearance - Meters2.64
Bridge clearance - Meters3.51
Bridge clearance - Inches104
Bridge clearance - Inches138
Deadrise22℃
Deadrise22℃
Draft [max] - Detail37 in. (0.94 m)
Draft [max] - Detail36 in. (0.91 m)
Draft [max] - Meters0.94
Draft [max] - Meters0.91
Draft [max] - Inches37
Draft [max] - Inches36
Weight - Detail9,750 lbs. (4,423 kg)
Weight - DetailGas: 16,100 lbs. (7,303 kg) Diesel: 17,100 lbs. (7,756 kg)
Weight - kg4422.52
Weight - kg7756.42
Weight - lbs.975
Weight - lbs.171
Length - Meters9.45
Length - Meters12.65
Length - Feet31
Length - Feet41.5
Length overall - Detail31 ft. 0 in. (9.45 m)
Length overall - Detail41 ft. 6 in. (12.65 m)
Length overall - Meters9.45
Length overall - Meters12.65
Length overall - Inches372
Length overall - Inches498
Body / Hull
Hull materialFiberglass
Hull materialFiberglass
Hull typenot available
Hull typeDeep Vee
Engine and Drivetrain
Engine/s standardMerCruiser? Twin 5.0 MPI Bravo Three
Engine/s standardnot available
Fuel tank capacity - Detail130 gal. (492 l)
Fuel tank capacity - Detail250 gal. (946 l)
Fuel tank capacity - Liters492.1
Fuel tank capacity - Liters946.35
Fuel tank capacity - Gal13
Fuel tank capacity - Gal25
Fuel typeGas
Fuel typeGas or Diesel
Drive typeInboard
Drive typeInboard
Operational Info
Headroom5 ft. 7 in. (1.7 m)
Headroom6 ft. 2 in. (1.88 m)
Water capacity30 gal. (114 l)
Water capacity50 gal. (189 l)
Holding tank capacity - Detail36 gal. (136 l)
Holding tank capacity - Detail50 gal. (189 l)
Holding tank capacity - Liters136.27
Holding tank capacity - Liters189.27
Holding tank capacity - Gal36
Holding tank capacity - Gal5