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Car Forum / Subaru Cars / January 2008

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Subaru Boxer Diesel Hitting the Streets

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phillystyle - 22 Jan 2008 18:24 GMT
I wonder if/when we'll get it here in the US.

http://www.testdriven.co.uk/news.cfm/2008-subaru-diesel-legacy-sports-tourer-and
-outback


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Ragnar - 22 Jan 2008 21:21 GMT
> I wonder if/when we'll get it here in the US.
>
[quoted text clipped - 3 lines]
> Message posted using http://www.talkaboutautos.com/group/alt.autos.subaru/
> More information at http://www.talkaboutautos.com/faq.html

Cool.  Add a turbo and bump up the power.  Say hello to the 2010 WRX.
Clifford Heath - 22 Jan 2008 21:44 GMT
> Cool.  Add a turbo and bump up the power.  Say hello to the 2010 WRX.

It is cool, but it's already got a turbo.
Ragnar - 23 Jan 2008 01:15 GMT
>> Cool.  Add a turbo and bump up the power.  Say hello to the 2010 WRX.
>
> It is cool, but it's already got a turbo.

Yes.  ADD a turbo and bump up the power.  Is English your first language? :)
alf - 23 Jan 2008 04:46 GMT
>>> Cool.  Add a turbo and bump up the power.  Say hello to the 2010 WRX.
>>
>> It is cool, but it's already got a turbo.
>
> Yes.  ADD a turbo and bump up the power.  Is English your first
> language? :)

my is not so I do not get the joke :-(. The article says the engine is
turbo diesel!

A.
Clifford Heath - 23 Jan 2008 05:00 GMT
> Yes.  ADD a turbo and bump up the power.

Oh, ok, I thought you'd missed that. In fact I think you did,
but are trying to snow us to reduce embarrassment :-).

It'd be hard to find room for ANOTHER turbo underneath though,
without raising it to increase ground clearance! Even just a
bigger one...

As I understand it, increasing the boost on a diesel doesn't
require lowering the compression ratio, at least not in the
way it's needed with petrol. So a bigger turbo would perhaps
be an easier proposition with this engine.
Zeppo - 22 Jan 2008 22:54 GMT
>I wonder if/when we'll get it here in the US.
>
> http://www.testdriven.co.uk/news.cfm/2008-subaru-diesel-legacy-sports-tourer-and
-outback

Very cool.

I was anti-diesel due to some bad experiences 20 years ago. That ended when
I rented an Audi A3 2.0T in Italy in October. Fun car, plenty of power and
great on fuel.

Jon
Rui Pedro Mendes Salgueiro - 23 Jan 2008 13:22 GMT
> I wonder if/when we'll get it here in the US.

> http://www.testdriven.co.uk/news.cfm/2008-subaru-diesel-legacy-sports-tourer-and
-outback

The article reads like a press release. But I am sure this car will
be reviewed in lots of magazines.

Oops, I just noticed that this is the Legacy, not the Impreza. Anyway,
it sill is good news, since now Subaru will start selling some cars
in markets like France, Portugal, etc. where gasoline engines are
almost impossible to sell (for some models 90+% of the cars sold
have a diesel engine).

Even in the UK, where the high price of diesel fuel means the maket
is less "dieseled" than others:

"Indeed, the firm's UK operation reckons it could have sold another 4,000
cars last year with a diesel in the line up. And when full production
comes on stream next year it expects 85% of Legacy sales to be oil
burners."
http://cars.uk.msn.com/Reviews/article.aspx?cp-documentid=7283675

Also, with the rules about average CO2 emissions (equivalent to fuel
consumption) the number of diesel cars sold allows them to sell some
more WRXs and STIs.

About the engine, the 150 HP are not particulary impressive. Yes, the
VW TDI has only 140 HP, but:

- VW has a tradition of underevaluating the power, while Japanese
  brands are usually slightly optimistic;

- the 140 HP version is only the first power level. There is a 170 HP
  version and I think there was at some point a 200 HP announcement
  (did that engine ever appear ?)

- and BMW has a 204 HP engine.

- the Mitsubishi concept presented at Detroit had a 201 HP engine
  (2.2 diesel). I don't know if the production version of that
  engine will have the same power, although technically it should
  be possible.

So, I hope that Subaru will make an higher power version in the near future.
But since they have an alloy block, they might not be able to compete with
the TDI, etc.

[ I like alloy blocks (less weight, better cooling), but usually the
maximum boost (and so the power) that they can endure is less than iron
blocks. For instance the Mitsubishi engineers said about the new Evo X
that the new engine (alloy block) could not be pushed above 360 HP.
The Evo IX (iron block) had a 400 HP version (FQ-400, UK market).
Also the new Nissan GT-R is supposed to be less tunable than the old
skyline (iron block) which some tuners pushed to 700+ HP. ]

OTOH, the engine has 150 HP at only 3600 rpm. So, if instead of increasing
the boost, Subaru increases the rpms to 4000-4200 it should be possible
to get to 170-175 Hp without much trouble.

Signature

http://www.mat.uc.pt/~rps/

.pt is Portugal| `Whom the gods love die young'-Menander (342-292 BC)
       Europe |    Villeneuve 50-82, Toivonen 56-86, Senna 60-94

suburboturbo - 23 Jan 2008 23:52 GMT
On Jan 23, 8:22 am, Rui Pedro Mendes Salgueiro <r...@koala.mat.uc.pt>
wrote:
> > I wonder if/when we'll get it here in the US.
> >http://www.testdriven.co.uk/news.cfm/2008-subaru-diesel-legacy-sports...
[quoted text clipped - 57 lines]
> .pt is Portugal| `Whom the gods love die young'-Menander (342-292 BC)
>         Europe |    Villeneuve 50-82, Toivonen 56-86, Senna 60-94

Just a few thoughts on this.  Diesels typically generate much greater
torque, but don't produce the rpm for big hp numbers.
BMW's 3.0 diesel is rated at 265 hp, but with 425 lb/ft of torque.  I
don't know how or even if the equation differs for the relationship
between the two in a compression ignition system vs gas/spark, but a
diesel can be tuned for performance and the boxer design, with it's
short crankshaft/camshafts and inherent balance, can somewhat offset
the weight gain that usually comes with a diesel to accomodate the
stresses of very high compression.  The big issue is getting that
torque on-line at very low rpm, and the lag that comes with a turbo
compounds the problem.  Now if you were to combine a turbo diesel,
with its dual lag issues, with an electric motor that produces maximum
torque from 0 rpm, you could have the best of both, or would it be all
three worlds?  So anybody up for a turbo-diesel hybrid boxer?
Blair Baucom - 24 Jan 2008 00:47 GMT
On Jan 23, 8:22 am, Rui Pedro Mendes Salgueiro <r...@koala.mat.uc.pt>
wrote:
> phillystyle <s...@hotmail.com> wrote:
> > I wonder if/when we'll get it here in the US.
[quoted text clipped - 59 lines]
> .pt is Portugal| `Whom the gods love die young'-Menander (342-292 BC)
> Europe | Villeneuve 50-82, Toivonen 56-86, Senna 60-94

Just a few thoughts on this.  Diesels typically generate much greater
torque, but don't produce the rpm for big hp numbers.
BMW's 3.0 diesel is rated at 265 hp, but with 425 lb/ft of torque.  I
don't know how or even if the equation differs for the relationship
between the two in a compression ignition system vs gas/spark, but a
diesel can be tuned for performance and the boxer design, with it's
short crankshaft/camshafts and inherent balance, can somewhat offset
the weight gain that usually comes with a diesel to accomodate the
stresses of very high compression.  The big issue is getting that
torque on-line at very low rpm, and the lag that comes with a turbo
compounds the problem.  Now if you were to combine a turbo diesel,
with its dual lag issues, with an electric motor that produces maximum
torque from 0 rpm, you could have the best of both, or would it be all
three worlds?  So anybody up for a turbo-diesel hybrid boxer?

I'm holding out for a gas-turbine generator electric car.

Blair
suburboturbo - 24 Jan 2008 04:08 GMT
> On Jan 23, 8:22 am, Rui Pedro Mendes Salgueiro <r...@koala.mat.uc.pt>
> wrote:
[quoted text clipped - 83 lines]
>
> - Show quoted text -

I wouldn't hold my breath on that.  Realistically, the diesel-electric
hybrid is here.  I work for a govt agency that's testing heavy
commercial versions, using ultra low-sulfur fuel, right now and Peugot
has a car ready to hit the European consumer market later this year.
Could be the next step...
 
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