|Engine||10-cylinder 90-degree V-type|
|Top speed||350 miles per hour (560 km/h)|
|Power||500 horsepower (370 kW) @ 5600 rpm (45 kW/L)|
|Tires||Front (2): 20x4 Size, Rear (2): 20x5 Size|
|Wheelbase||76 inches (1,900 mm)|
|Seat height||29 inches (740 mm)|
|Weight||1,500 pounds (680 kg)|
|Fuel capacity||3.25 US gallons (12.3 L)|
At the 2003 North American International Auto Show in Detroit, Michigan, Dodge unveiled a vehicle with an unusual design, featuring the 500 hp (373 kW) 8.3 L V10 engine from the Dodge Viper. The vehicle has two front wheels and two rear wheels, making it a kind of motorized quadricycle rather than a typical motorcycle.
In 2005, Dodge decided to sell 10 versions at US$550,000 each through Neiman Marcus. While the Tomahawk is not street-legal, it could, theoretically, be ridden. The Tomahawk, as sold, is missing a few trivial parts necessary to make it a running bike. Dodge has done some minimal testing on the first bike built, and then-COO Wolfgang Bernhardt drove it onto the stage at the Detroit Auto Show. The Tomahawk is officially sold as a "rolling sculpture" to show the Viper engine.
Though it has four wheels, to associate the Tomahawk with a quad-type vehicle is not entirely accurate; quad-type vehicles have more in common with the automobile. They turn like an automobile, while the Tomahawk turns by leaning.
At the time of its introduction, many did not believe the Tomahawk could be ridden and leaned into a turn. The Italian company Piaggio has since demonstrated with their very well received MP3 scooter, that, given adequate development time, the same basic principle could in fact be successfully implemented. The Tomahawk however was conceived and built to serve only as a communication tool, having as its mission to promote the Dodge brand, while showcasing the Viper motor as well as the creativity of the people behind that brand. The entire project, from conception to finished show vehicle was limited to only five months. The show vehicle therefore did not benefit from the sort of extensive dynamic development phase typical of production vehicles.
- 500 bhp (373 kW) @ 5600 rpm (45 kW/L); 525 ft·lbf (712 Nm) @ 4200 rpm
- 10-cylinder 90-degree V-type, liquid-cooled, 505 in³ (8275 cc)
- 356-T6 aluminum alloy block with cast-iron liners, aluminum alloy cylinder heads
- Bore x Stroke: 4.03 by 3.96 in (102 x 101 mm)
- Two pushrod-actuated overhead valves per cylinder with roller-type hydraulic lifters
- Sequential, multi-port electronic fuel injection with individual runners
- Compression Ratio: 9.6:1
- Max Engine Speed: 6000 rpm
- Fuel Requirement: Unleaded premium, 93 octane (R+M/2)
- Oil System: Dry Sump; takes 8 quarts (8 L) Mobil 1 10W30 Synthetic
- Cooling System: Twin aluminum radiators mounted atop engine intake manifolds, force-fed from front-mounted, belt-driven turbine fan. Takes 11 quarts (10 L) of antifreeze.
- Exhaust System: Equal-length tubular stainless steel headers with dual collectors and central rear
- According to the official specs 0-60 mph times have been estimated at 2.5 seconds, with an estimated top speed of 350 mph (560 km/h). But there are also reports that the top speed is 676 km/h (about 420 mph). It is very unlikely that anyone will ever test the vehicle, due to safety concerns and the price of the Tomahawk itself. Dodge has expressed interest in one day taking it to the Bonneville salt flats, but as of yet has not.
This is for people who are passionate about engines," said Chrysler chief operating officer Wolfgang Bernhard, who rode the Tomahawk on stage during a media preview. "A motorcycle is the most beautiful way to showcase an engine."
The 1,500-pound Tomahawk can reach 60 miles (97 km) an hour in about 2.5 seconds, and has a top speed of 420 mph (680 km/h). Each pair of wheels is separated by a few inches and each wheel has an independent suspension. Bernhard said four wheels were necessary to handle the power from the engine.
Chrysler executives said if the Tomahawk were put into production, it would draw attention to the Dodge brand in ways no ordinary sports car could. Bernhard said a decision on whether to build the Tomahawk could be made in several months.
The Tomahawk is a Viper V-10 based motorcycle, a 500 horsepower (370 kW) engine with four wheels beneath it. Ten hand-built reproductions, each to be sold at a price of $555,000.
Outboard, single-sided parallel upper and lower control arms made from polished billet aluminum. Mounted via ball joint to aluminum steering uprights and hubs. Five degrees caster. Single, fully adjustable centrally located coil-over damper (2.25-inch coil with adjustable spring perch); pullrod and rocker-actuated mono linkage. Center-lock racing-style hubs
Hand-fabricated box-section steel inboard swing arms, incorporating "hydral-link" lockable recirculating hydraulic circuit parking stand. Single fully adjustable centrally located Koni coil-over damper (2.25-inch coil with adjustable spring perch); pushrod and rocker-actuated mono linkage. Center-lock racing-style hubs
20-inch perimeter-mounted drilled machined stainless steel rotors, one per wheel. Two four-piston fixed aluminum calipers per wheel (16 pistons total), custom designed. Blue anodized caliper finish. Hand-activated.
20-inch perimeter-mounted drilled cast-iron rotors, one per wheel. One four-piston fixed aluminum caliper per wheel (8 pistons total), custom designed. Blue anodized caliper finish. Foot-activated.
PERFORMANCE:0-60 mph:2.5 seconds (est.) Top Speed: 350 + mph (est.)
DIMENSIONS:Length: 102 inches Width: 27.7 inches Height: 36.9 inches Wheelbase: 76 inches Seat Height: 29 inches Weight: 1,500 lb (680 kg). Track, Front: 8.75 in Track, Rear: 10 in Weight Dist: 49F/51R Ground Clearance: 3 in Fuel: 3.25 gallons
ELECTRICAL SYSTEM:Alternator: 136-amp high-speed Battery: Leak-resistant, maintenance-free 600 CCA Lighting: Headlights consist of 12 five-watt LEDs, front, with beam-modifying optics and masked lenses. Eight LEDs, rear. Headlamps articulate with wheels.
TRANSMISSION: Manual, foot-shifted two-speedAluminum-cased two-speed, sequential racing-style with dog ring, straight-cut gears Gear Ratios: 1st 18:38; 2nd 23:25 Clutch: Double-disc, dry-plate with organic friction materials, hand lever actuated with assist Final drive: Dual 110-link motorcycle-style chains
Front Sprockets: 14 teeth Rear Sprockets: 35 teeth
BODY/CHASSIS:Longitudinal, centrally mounted engine, rear-wheel drive layout; monocoque construction, engine is central, stressed member. Body of billet aluminum.
STEERING:Dual hub center type steering. Steering Linkage: Rocker arm and push/pull rod with roller bearings. Polished billet aluminum steering yoke with turned aluminum grips and billet levers Steering Lock: 20 degrees, left and right Lean Angle: 45 degrees, left and right
TIRES and WHEELS (4):Type and Material: Billet aluminum discs, asymmetrical Size, Front (2): 20x4 Size, Rear (2): 20x5
Tires Mfr. and Model: Dunlop custom-made symmetrical Size, Front (2): P120/60R-20 Size, Rear (2): P150/50R-20
Television and film appearances
|Dodge concept vehicles|
|Cars:||Challenger | Copperhead | Demon Concept | Intrepid ESX | Razor | Slingshot | Super 8 Hemi|
|Vans / SUVs:||EPIC | Hornet | Kahuna | Powerbox|
|Trucks:||M80 | MAXXcab | Rampage Concept | Sidewinder|