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2012 Tata NanoThe Tata Nano, once upon a time the cheapest car in the world, may not have been as successful as Tata Motors hoped for. Controversy was once its byword, politicians, environmentalists and rival car companies had complaints even before it landed in showrooms.

As the Nano waded through controversies, it was met with intense criticism as a handful of Nanos went up in flames. Despite the company reassuring customers of its robustness and offering free checkups and safety tool fitments, the Nano was not a safe car to the eyes of the general public.

Tata has managed to put that ghost to rest, but the aftermath of the disaster is giving the little wonder and its parents sleepless nights.

The age of diesel engines for motorcycles, some believe began (and ended) with the Royal Enfield Bullet Taurus. It needed a backbone made of steel, and teeth of titanium to bare the vibrations and harshness of riding one. If you were driving near one, you needed ear plugs.

While diesel engine have evolved to such a level that it terrorizes the gasoline engine’s existence, its application has began widening. Now Yamaha has put its head out and it could be the first manufacturer to offer diesel engines of 2-wheelers commercially.

Yamaha has filed patents for a new family of motorcycle-size turbodiesel engines in both inline-four and twin-cylinder layouts.

Obviously a diesel engine is heavy and big. Packaging needs to be thought out and that’s what these patents deal with. The arrangement of the different parts is matched to a 2-wheeler’s structure, for example the intercooler is placed above the engine saving space and the bike’s fuel tank is moved backwards.

Hit the jump to read the pdf document that explains this innovation in detail

Coinciding with the launch of new 220 DTSi, Bajaj today announced that it is going to roll out the world’s most fuel efficient engine series, called DTS-Si version 2.0, which incorporates 5 major innovations.

Designed and developed completely by ‘Ahead’, Bajaj Auto’s R&D, major changes include Oval Pent Roof Combustion Chamber for maximizing charge density; Molykote Piston to reduce friction and improve efficiency.

The DTS-Si version 2.0, which incorporates 5 major innovations could make it the most fuel efficient engine not only in India but also the world as Bajaj claims.

What is the Corolla Altis Dual VVT-i about?

The Indonesian market has a firm relation with Toyota vehicles and Japanese manufacturer has dropped yet another variant of the best selling Corolla Altis in the market.

The 2.0 Dual VVT-i variant features only a new radiator grille, but only when you open the bonnet you find the rational explanation to the word “Dual” on the badge.

Who the heck is Dual VVT-i? Is this the same case as Hero Honda Splendor and Splendor+ with fuel tank stickers seperating the two?

Generally, the term dual on a car is implied as a dual-fuel engine that is capable of handling fuels of different nature. But not this one though.

The Dual VVT-i is two VVT-i meaning both the inlet and exhaust valves obtain variable valve timing capabilities. The regular Corolla Altis, like the one sold in India is equipped with VVT-i only for the intake valve, so only the volume of mixture entering the engine can be controlled by altering the duration of valve in open condition.

According to you, what could be the advantages?

With the Dual VVT-i technology, the flexibility is enormous, and the regulated delay and advancement of the exhaust valve timing improve throttle response and minimize fuel wastage and emissions brought about by it. At lower revs, the valve shuts sooner and at higher revs it is otherwise. The driver will be able to feel the change.

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Car scratches could be a thing of the past if what these scientists have come up with finds its way on car bodies. They have come up with an innovative special coating that self-heals. You heard it right – It will self-heal when it is exposed to sunlight.

If you have a love for the engine, the word Multijet should make your heart beat faster. Well, it’s the award winning engine that’s doing all the thermodynamics under the bonnet of the Swift, Palio, Indica Vista and 500. GM could use this engine in the future, and all of the Indica’s and Indigo’s in the future will latch on to this technology, not to mention the ever-enlarging Fiat line up.

A technology that will compliment Fiat’s already-fuel efficient engines, has been introduced by Fiat at this year’s Geneva Motor Show. It’s termed Multiair technology is similar to a VTEC or VVTi, which deals with variable valve timing for better engine response and lower fuel consumption/emissions.

New 3.0-liter V6 engine from Audi
delivers a maximum of 420 Nm torque at 2,500 rpm, is the same until 4,850 rpm
Roots Blower supercharger fits inspite of the 90-degree V of the cylinder banks

A new study from Stanford’s Woods Institute for the Environment has found that crop-based biofuels, in any form, is speeding up global warming rates by pumping far more carbon dioxide into the atmosphere, than conventional Fossil fuels.