Tuesday, April 22, 2008

TVS Flame



The new TVS is packed with technology and nice-looking engine cases surround the TVS CCVTi (Controlled Combustion Variable Timing ignition) engine. This engine displaces 124.8cc and produces 1.02kgm torque at 6250rpm, while optimum power is 10.3bhp at 8250rpm. The Flame’s controversial two-too-many-spark plugs are situated in a combustion chamber that deploys three valves — two inlet and one exhaust. Ignition is multi-mapped to provide the best spark for changing conditions, while the Flame does not stint on friction-slaying elements like roller bearings for its rocker arm contact points. The technology used in the Flame was developed jointly by TVS’ in-house R&D team and engine experts AVL of Austria. The idea is to achieve optimal engine efficiency, incorporating good tumble and swirl within a single cylinder — easier said than done for a single inlet port providing good tumble tends to lack good swirl, and vice-versa. The Flame does achieve this, however, dedicating only one swirl-promoting port at low-throttle operation conditions, while a second inlet (located above the first) is engineered to open only at higher engine speeds and facilitate good tumble.

The gearbox on the Flame is an all-four-up shifting gearbox that shifts smoothly at all times. The Flame can reach a top speed of 98kph and get from 0-60kph in 6.24seconds. And though it does deliver good performance for its class it lacks as much low end torque as we would have liked to have felt.

Fuel economy


The Flame delivered 52.9kpl in crowded city conditions and 57kpl on the highway.

Verdict

Given that the Flame is stylish, has more than enough features and is even packed with technology, one would expect that the bike is perfect. However, this isn’t so and very basic flaws including a rough engine and poor riding position take away from its appeal. And, all that technology didn’t even manage to get fuel efficiency to highly impressive levels. Additionally, TVS has priced it a startling premium above its competitors. All factors considered, the Flame might just manage to create a tepid stir in the biking world.



TECHNICAL DATA


Type: Single-cylinder, air-cooled four-stroke

No of cylinders: One


Engine displacement: 124.8cc

Maximum power: 10.3bhp at 8250rpm

Maximum torque: 1.02kgm at 6250rpm

Starting: Self-start

Transmissions: 4-speed, 4-up

Tyres: 2.75 x 18 – 3.00 x 18 inches

Fuel tank capacity: 8litres

Fuel efficiency: 55kpl

Length: 2030mm

Width: 760mm

Height: 1070mm

Wheel base: 1320mm

Ground clearance: 165mm

Vehicle kerb weight: 123kg

Max speed: 98kph

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