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Thread: New Subaru diesel engine

  1. #1
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    New Subaru diesel engine

    The world’s first horizontally-opposed turbo diesel engine offering exceptional refinement and smoothness makes it debut at the 77th Geneva International Motor Show next month on the Subaru stand.

    The Japanese all-wheel drive specialist – renowned for producing cars with outstanding chassis dynamics and active safety – will be displaying an entire drivetrain at the ’show.

    Subaru believes passionately in its ‘boxer’ engines which are more compact than in-line units and provide a much lower centre-of-gravity.

    This reduces body roll for safer cornering and also enhances handling precision such as during a sudden lane-change maneuver on a motorway.

    Due for its first vehicle application early next year, the Subaru ‘boxer’ turbo diesel is a highly rigid unit with low levels of noise and vibration.

    Not only does this eliminate the need for a balancer shaft which counters uneven combustion pressures and general roughness, but Subaru’s first diesel is as compact as its petrol sisters and combines unusually strong pulling power at low engine speeds with high-rev throttle-response.

    Both the engine and symmetrical all-wheel drive drivetrain will be unveiled as part of Subaru’s press conference at the ’show on March 6 at 10.15 am.

    Source: http://www.worldcarfans.com/news.cfm...iere-in-geneva

    I reckon this could be very good indeed. Looking forward to it.
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    Very cool! Can't wait to see what amount of torque it has

    oh and fuel economy too...

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    That's cool. Now if they can bring it here, America, then that would be swell.

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    Thats ace, finally Subura can compete better in europe
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    Wonderful achievement. As Canuck said I can't wait to see how much torque this baby puts out, the Boxer-4 in the WRX STi put out about 300 lb-ft running on gasoline so I guess the number can be significantly boosted. Does WRC regulations allow this kind of engine? It would be fun to see.
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    Quote Originally Posted by fisetdavid26
    Wonderful achievement. As Canuck said I can't wait to see how much torque this baby puts out, the Boxer-4 in the WRX STi put out about 300 lb-ft running on gasoline so I guess the number can be significantly boosted. Does WRC regulations allow this kind of engine? It would be fun to see.
    i wouldnt draw too much comparisons. boxer is just the configeration. The similar evo IX gets 300lb.ft from an in-line 4. The advantages of the boxer lies in low centre of gravity and short length, disadvantages being expense of twin head and access to engine parts...torque is more to do with mean effective pressure and bore/stroke ratio if you wan to look into that. Correct me if im wrong.
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    Rumours are that it'll be a 2-litre and it'll have about 170bhp and 350Nm. The cars that'll have it are all the Subaru range except the japanese K-cars and perhaps the Tribeca.
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    Nothing special then.
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    Technical question, how does it differ from a "regular" in line diesel engine? more torque at high revs? power diference?
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    Quote Originally Posted by h00t_h00t
    Nothing special then.
    I think 350Nm is around 250 Lb Ft, if so thats not bad...

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    Quote Originally Posted by ruim20
    Technical question, how does it differ from a "regular" in line diesel engine? more torque at high revs? power diference?
    The boxer layout's more balanced than a straight 4, hence why they didnt need the balancer shaft (which also saves weight). I'd assume from that also it could be possible to rev the engine slightly higher than a comparable 2L I4 diesel.
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    Good goin' Subaru!!

    Hopefully it will make it into California, with the newer cleaner diesels being allowed in.

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    Quote Originally Posted by h00t_h00t
    Nothing special then.
    I think the interesting feature of this engine is its boxer layout not the figures.
    Quote Originally Posted by The_Canuck
    I think 350Nm is around 250 Lb Ft, if so thats not bad...
    Most turbocharged diesels between 1900-2000cc already produce those kind of figures, some even more.
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    Quote Originally Posted by fpv_gtho
    The boxer layout's more balanced than a straight 4, hence why they didnt need the balancer shaft (which also saves weight). I'd assume from that also it could be possible to rev the engine slightly higher than a comparable 2L I4 diesel.
    your right to a certain degree but the reason a diesel cant operate as fast as a petrol is the burn time for diesel fuel. new Super fine injection reduces droplet size hence reducing burn time. Many I4's dont have balancer shafts simply as a choice of refinement. I4's have secondary vertical imbalance (an imbalance that occurs at twice the crankshaft speed) and this imblalacne is greatly effected by the reciprocating component mass. So if pistons in a diesel are heavier this reduces the speed at which unnaceptable vibration occurs backing the boxers increased revability...however exactly the same can be said for i6 diesels. I suppose then there are a few factors to consider then...sorry to go on
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    If anyone is interested, I have a 3000x ???? pixels version of it Way too large to upload though

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