Mazda CX-5 producing the future

Being allowed to drive prototype test mules and being asked by the people who created them not to pull your punches is a dream assignment.

The idea was to sample the new CX-5 away from prying eyes some months before being made available for showrooms, and Mazda's engineers were keen to see what ordinary drivers thought of their new technology.

The label SkyActiv is Mazda's new technological mantra and it's effectively an holistic twist to crafting new cars. It refers to not just the drivetrains, body design and suspension, but all these elements, contrived to improve the performance of the whole.

By going to Toyota for its plug- in electric and hybrid technology needs, Mazda doesn't worry about the direction of new technology and can concentrate on its Skyactiv drive trains which redefine familiar internal combustion engineering for improvements in output, emissions and fuel consumption.

Being able to refine its already competitive powertrains and dovetail them into equally refined body and chassis systems, Mazda says it can match many new tech emissions and economy figures by sticking to its knitting.

The power units involved are the Skyactiv-G 2.0-litre direct injected petrol and Skyactiv-D 2.2-litre diesel units. The former has a very high 14:1 compression for most markets, and a 13:1 compression for those, like ours where 91 octane is more prevalent.

The Skyactiv-G, when compared with the two-litre four currently standard in the Mazda3 has gained a four into two into one exhaust, special in-piston combustion cavities, and multiport fuel injectors which help reduce the likelihood of pre- ignition or "knocking" from such a high compression ratio. Internal friction is reduced by 30 per cent, weight has dropped by 10 per cent, and fuel consumption has eased by 15 per cent, while 15 per cent more torque is produced.

While the petrol unit works willingly and well in the CX-5s I tried, its remarkable refinement levels and free-spinning nature failed to charm as much as the Skyactive-D did.

Fwd Mechanical Engineering - News


Mazda CX-5 producing the future
Mazda CX-5 producing the future

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