Revolutionary two-cylinder Twin-Air engine will be revealed at Geneva
2 March 2010

Fiat Powertrain Technologies has revealed a revolutionary two-cylinder Twin-Air engine at the Geneva motor show.

The 900cc 8V Twin-Air engine, which can be tuned to produce between 64bhp and 104bhp, includes Fiat’s Multiair system combined with special fluid dynamics to maximise performance and efficiency, while also reducing size, weight and CO2 emissions. Two turbocharged and one naturally aspirated version will be offered.

Fiat has also minimised friction and improved thermo-dynamic efficiency to get the optimum performance from the Multiair system. Multiair is an electro-hydraulic valve management system that reduces fuel consumption by controlling air directly via the inlet valves without the use of the throttle.

The Twin-Air engine in 84bhp guise uses 15 per cent less fuel and has 25 per cent more power than a standard 1.2 8V engine, which returns 55mpg.

Next to a 45mpg 1.4 16V engine, Twin-Air uses 30 per cent less fuel and has similar power and performance figures. CO2 emissions in the Twin-Air engine are claimed to be less than 95g/km.

The addition of a turbocharger means it produces more torque at lower revs than the two aforementioned engines.

The engine is also 23 per cent short lighter and 10 lighter than a four-cylinder engine of equal performance and medium displacement. Fiat says its size is also ideal to be used as in a petrol-electric hybrid system and can be mated to an energy recovery system, which stores energy usually lost under braking.

The 84bhp version of the engine will be made available in the Fiat 500 from July.

 

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Comments
18

26 February 2010

[quote Autocar]The turbocharged 1.2-litre 8V[/quote] Well... It's 0.9-litre indeed.

26 February 2010

[quote glorfindel]Well... It's 0.9-litre [/quote]

Certainly is, you really should be getting the basics right

Not exactly new news, keep up Autocar.

This news was released on 18th Feb, but I expect you were rying to keep up with VAG publicity on the Polo that's the same as an Ibiza....

26 February 2010

I'm glad to see that from one of the pictures it looks like it has a timing chain. Is this the beginning of the end of the great timing belt rip-off every 60,000 miles or so?

26 February 2010

Oohhh... I feel a Tato Nano Abarth coming on...

26 February 2010

Can't deny this looks like a very good little engine and certainly moves the game on for the small car sector. It won't be long before we get something similar form the French.

Timing chains stretch and can therefore cause teeth meshing problems unless the chain tensioning part has alot of automatic adjustment it will need changing.

Anonymous

27 February 2010

Let's just hope Fiat launch this at a reasonable price in the UK. Fiat seem to be using the Multiair and Multijet II engines to ease prices up; the 500 diesel now starts at £11,700 because the 75bhp verson is no longer offered in the UK.

27 February 2010

Technically a very interesting little engine . I wonder how smooth it will be though compared to a 4 pot.

27 February 2010

It's an intriguing prospect; it could be the most horrendous or conversely the most characterful engine in a long while. I'm all for petrol engines in small cars, so it's good to see FIAT sticking with it.

As Jon Hardcastle says, chains can need replacing. However, with adequate (and reliable!) tensioners in theory it's not something you'll likely have to worry about. My understanding has been that chains will last the life time of the engine (certainly up to 150,000 miles) if the engine always has good oil level and - and this is the killer - runs oil of proper grade which is replaced regularly and often.

My current motor has chain and requires oil changes every 9,000 miles; that is an unfashionaly short service interval nowadays. How will the oil cope if FIAT decide to go for 18,000 mile intervals? Short trips and stop start driving (surely this engines natural environment) particularly over winter can rapidly thin oil. Anyone who has ever had a car with a oil pressure gauge can testify to that.

  • If you want to know about a car, read a forum dedicated to it; that's a real 'long term test' . No manufacturer's warranty, no fleet managers servicing deals, no journalist's name to oil the wheels...

27 February 2010

This conversation is going no where. It’s lacking the place of a good leader to head the things to come out on conclusion.
==============

jonsmit


Cheap New Cars

27 February 2010

I see the spammers are with us again.

I believe the authorities are trying to use the tax laws to prevent such occurrences. Taxing them out of business, so to speak.

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