Third-generation powertrain could find its way into Toyota's new FT-86 coupe

Subaru has launched a third-generation version of its innovative boxer petrol engine.

The new four-cylinder, direct-injection boxer unit is the first from Subaru's parent firm Fuji Heavy Industries Ltd in 21 years and will again be available in 2.0-litre and 2.5-litre forms. No official power figures have been quoted by Subaru, but economy in both displacements is improved by 10 per cent.

The improvements have been made by revising the bore and stroke dimensions for optimised combustion and the use of use of lightweight, low friction internal parts including pistons and connector rods. The engine will initially be launched Subaru’s Forester model, but will find its way into other Subarus as well as Toyota’s FT-86 coupe.

Read the latest on the Toyota FT-86 and its engine options

The Subaru boxer engine is expected to be the FT-86’s core powertrain tuned to produce around 197bhp and will be mated to either a six-speed manual or CVT gearbox.

The engine is also tipped to form the basis of Subaru’s hybrid powertrain, previewed in the firm’s innovative Hybrid Tourer Concept. In this concept the engine was mated to two electric motors – a 10kw one at the front and a 20kw one at the rear - powered by a lithium-ion battery pack.

Read more on Subaru's stunning Hybrid Tourer Concept

This hybrid powertrain is also said to be of interest to Toyota as it will offer a much more sporting driving experience for the rear-drive coupe, something its current hybrid powertrain cannot provide.

See all the latest Subaru reviews, news and video

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Comments
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24 September 2010

Long overdue - I looked at a new Impreza and a used Legacy when car shopping (bought a new Mazda 5) and the performance/economy just wasn't there, even for a 4wd car. The worst part was that my wife wanted an auto - on the 2.5 (smallest engine on both available here) you can only get a 4 speed auto.

24 September 2010

[quote Autocar]The new four-cylinder, direct-injection boxer unit is the first from Subaru's parent firm Fuji Heavy Industries Ltd in 21 years and will again be available in 2.0-litre and 2.5-[/quote]

Wow Subaru got a good life out off that engine truly a great engine then did not realise it has being basically the same engine for 21 years wow like .I take it thats for the petrol engines do . Do Fuji heavy industries not build the boxer diesal too and that was new and only relised in the last 3years was,nt it .

24 September 2010

Yes, its about time. I looked at Legacy 2.0 and 2.5 not so long ago but the performance / economy figures left me wondering: what were they thinking? I picked a 3 series with a straight-6 instead.

24 September 2010

I owned a WRX 2.0l engine with the performance pack and could get about 265bhp and 26mpg (real world figure). My brother bought the 2.5l Focus ST and on a motorway drive is able to get 26mpg with only 225bhp, and less mpg when just pottering about.

I can't speak for the 2.5l Subaru engines because I've never owned one, but it always struck me that the Subaru's reptuation of being thirsty wasn't justified. It will be better still with direct injection.

24 September 2010

[quote Symanski]I can't speak for the 2.5l Subaru engines because I've never owned one, but it always struck me that the Subaru's reptuation of being thirsty wasn't justified. It will be better still with direct injection.
[/quote]

I had a few - a Legacy wagon that rarely did better than 16 or 17 qaround town and never did better than 30 on a trip. Still liked it though. They have improved over the years - our Forester turbo of only a year ago got much better fuel economy and had 50% more power.

24 September 2010

[quote Autocar]This hybrid powertrain is also said to be of interest to Toyota as it will offer a much more sporting driving experience for the rear-drive coupe[/quote] Is nobody else shocked to learn that Toyota is meaning to borrow hybrid technology? From Subaru, of all manufacturers, who has never even sold a hybrid?

24 September 2010

it doesn't say what if any of the Subaru hybrid technology will be used, only the engine.

'Subaru, of all manufacturers'

what is that supposed to imply? Subaru and Fuji are hardly novices prone to churning out technological lemons

24 September 2010

My experience of owning a Subaru (although a while ago) was that it far greater than the sum of its parts. And absolutely bulletproof.

I remember telling people that if you read the specifications of a Subaru (including fuel consumption) and compared the figures with a competitor, you would always go for the competitor.

But, if you actually owned a Subaru for more than a month, you would be really glad you chose it and wouldn't dream of swapping it.

I wish Subaru well with this new engine. I would currently own a Legacy if they had made a diesel automatic available.

...the band was playing Dixie: double-four time...

24 September 2010

[quote ischiaragazzo]a Legacy wagon that rarely did better than 16 or 17 qaround town and never did better than 30 on a trip.[/quote]

Goodness only knows how you managed to get it that low. Our current 2004 Legacy 2.5 tourer has averaged 29.1 mpg over the last 31,488 miles and four years. It does a lot of fairly short trips with some longer A class journeys - very little is on motorways. It is usually filled with kids and other junk. ;)

My 2006 Impreza WRX 2.5 has average 25.6 mpg (and is improving) over the last 12,118 miles and 9 months. It does 50 miles of commuting per day along A roads and through town. As Symanski says, their thirst has for years been exaggerated but today's announcement is belated recognition that they need to make changes to address that they are being left behind. And as cimardinius aludes to, the whole experience is more important than the frugality of the engine...

...but each to their own.

19 October 2010

Well, my STi 330S averages 18mpg, but I can increase that to 12.6 at a push... Fortunately, I love it...

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