Driving report Millyard Viper V10

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Driving report Millyard Viper V10
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Driving report Millyard Viper V10 (2009)

No, this is not an optical illusion

The Millyard Viper is around a third larger than a conventional bike in almost all dimensions and sets a new standard of craziness with 500 hp.

This project was realized by the eccentric Briton Allen Millyard, 47, who has already made a name for himself in the motorcycle scene with spectacular multi-cylinder self-builds. Had the idea for the Viper M.illyard in 2004 at the Festival of Speed ​​in Goodwood. Millyard marveled at the Dodge Tomahawk, a mixture of car and motorcycle, in which an eight-liter V10 engine was installed in a chassis that was supported by twin tires at the front and rear. 

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Driving report Millyard Viper V10

Driving report
Millyard Viper V10


MCN

Self-made frame, the motor is integrated as a supporting element. Massive axle clamping at the rear, the main stand extends electrically at the push of a button.

The swingarm is braced against the frame with two Yamaha R1 struts, the tank and seat come from a 1970 Kawasaki H1. In April 2008, after a year of hard work, the machine was ready for test drives. In the first test runs, the 630 kilogram monster reached almost 250 km / h. To get to the bottom of the machine, Millyard puts his Viper on a high-speed course to Bruntingthorpe. As expected, the Viper sets new records: it takes just 7.35 seconds to pull it through from 100 to 210 km / h, around 3.5 seconds less than a Yamaha Vmax and half as much as a 2.3-liter Triumph Rocket -Engine.

Curious: Due to a design error, Millyard was supposedly only able to open the throttle valve halfway during the measurement runs. Our English colleague Trevor Franklin is the first to drive the Viper in a world exclusive. And feels “like a chicken over a campfire” because the engine block, manifold and exhaust radiate incredible heat. You are literally lying on the tank because of the large distance between the seat and the handlebars. The enormous seat height in connection with the high weight is formidable and a real drawback when stopping. Every careless turn paints stripes on the asphalt. Leaving no rubber here is a fine art. The viper tells you every inch that you can never really control it.

When Franklin stops after a few laps, he criticizes the responsiveness of the suspension elements and praises the brakes, but he looks in vain for words to convey the feeling of the gigantic and yet completely relaxed power. Allen Millyard is satisfied: His Viper has been approved and approved for roadworthiness by the authorities, and he plans to build nine more copies. And when the throttle problem is fixed, the Viper should reach 300 km / h. Provided a windshield protects the driver from being blown by the machine. Regardless of this, the hobbyist is thinking about increasing the displacement to ten liters. That would push the performance to 850 hp. They’re crazy, the British.

Technical data of the Millyard Viper V10


MCN

Allen Millyard: At the age of 15, he was already assembling the engine from a Mini into a motorcycle chassis. His penultimate project was a V12 Kawa with 2300cm³.

engine
Liquid-cooled V10 engine, origin Dodge Viper SRT-10

Bore x stroke: 102.4 mm x 100.6 mm
Displacement: 8277 cm³
Output: 372 kW (500 hp) at 5600 rpm
Torque: 712 Nm at 4200 rpm

landing gear
Tubular steel frame, load-bearing engine and gearbox, steel swing arm with two directly hinged, fully adjustable spring struts, 75 mm upside-down fork, AP Lockheed disc brake at the front, 310 mm, with two six-piston fixed calipers, disc brake at the rear, 320 mm, six-piston -Fixed saddle. Outlaw Triad alloy wheels v / h     
Front / rear tires: 180 x 18/280 x 20
Tires: Avon Venom

Dimensions + weights
Total length 2742 millimeters, wheelbase 2032 millimeters, weight with a full tank of 630 kg, tank capacity 15 liters.
Built-in, partially
modified parts
JCB stanchions, Hagon fork springs, Yamaha R1 struts, Kawasaki H1 500 tank with Triumph Rocket III filler neck, Honda Fireblade rear light, Koso cockpit, Honda NTV 650 mirror, Honda ST1100 brake cylinder, Suzuki TL 1000 S. Shift linkage and deflection, self-made exhaust system with NASA Space Shuttle heat protection parts.

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