Subaru Boxer Diesel Engine

madhokritesh · 15th September 2008, 10:39

Came across this while surfing the net SUBARU | SUBARU BOXER DIESEL this is supposed to be a revolution in Diesel Engine tech, supposed to be better than the CRDI and Multijets, and its from Subaru. The all new Forester is being launched on 2nd Oct at the Paris Motor Show 08 which has this Boxer Diesel Engine.

SUBARU | SUBARU BOXER DIESEL

SUBARU BOXER DIESEL | A True Engineering Revolution

kcstheg · 15th September 2008, 13:32

Fantastic!

I have always been a great fan of the Subarus'. They are awesome handlers.

The diesel is also is surely going to impress one and all.

madhokritesh · 15th September 2008, 16:29

Now that Subaru is owned by Toyota lets see if they get it here or atleast use the Tech for their engines.

anonymous · 15th September 2008, 16:38

Great news for I think its been posted in wrong section.
I really got excited to see this thread under Indian Car Scene but I do not think its going to happen soon

chncar · 15th September 2008, 17:01

Quote:

Originally Posted by madhokritesh

Now that Subaru is owned by Toyota lets see if they get it here or atleast use the Tech for their engines.

I don't mean to nitpick, but Toyota with 15% ownership in FHI is more of an investor than an owner.

I do wish Tata did some tie-up with Subaru to get tech for LR.

Harbir · 15th September 2008, 21:04

I'm sorry, but I missed how this is supposed to be a revolution in diesel technology.

reignofchaos · 15th September 2008, 21:22

The basic claim to fame for this engine is the lack of balance shafts unlike other diesels. Most other diesels use balance shafts for reducing engine NVH which is substantially more in diesels. It avoids the problem by making two of its pistons move in the opposite direction and hence the vibration gets cancelled out. This philosophy is quite unlike an inline 4 and allows the engine to have a lower CoG as well.

Lack of balance shafts allows the engine to be significantly smaller and lighter than conventional CRDI diesels. This should be an awesome diesel engine... probably even better than multijet.

Harbir · 16th September 2008, 03:08

absence of balance shafts makes an engine significantly smaller and lighter than conventional diesels?

I am skeptical of that claim.

madhokritesh · 16th September 2008, 10:46

The Boxer Diesel Engine tech is supposed to be more Fuel Efficient and Powerfull as compared to the Multijets and the CRDIs owing to the lighter engine thats what Subaru says.

HPP · 16th September 2008, 10:59

Quote:

Originally Posted by Harbir

I'm sorry, but I missed how this is supposed to be a revolution in diesel technology.

It's a Boxer diesel engine, that is revolutionary in itself. The positives highlighted in that article just make the Boxer diesel unique within itself.

Quote:

Originally Posted by Harbir

absence of balance shafts makes an engine significantly smaller and lighter than conventional diesels?

I am skeptical of that claim.

Maybe not "significantly" smaller, but smaller and less complicated none the less. Also less rotating mass(which a road racer should understand is a good thing). Those of us who heavily modify their motors routinely remove the balance shafts for just these reasons(it also free's up HP).

Harbir · 17th September 2008, 04:20

I am sorry for being dense but I still don't get it. boxer engines and their traits are well established. Just adding diesel doesn't actually advance the state of the diesel art.

To get into the diesel market, Subaru HAD to do it this way because their cars are engineered for boxer engines and are not crash approved with inline or V engines, even if such engines would fit, plus this allowed subaru to just used their existing engine architecture, albiet with strengthened blocks.

I don't see much here that can be transfered to inline or V layout diesels that they will benefit from, nor do I see other manufacturers seeing much advantage to subaru's way that they go to boxer diesels for their own cars.

Its fun and cool that subaru is making a boxer diesel, but I don't see anything revolutionary.

A mild evolution at best.

15th September 2008, 10:39	#1
madhokritesh BHPian Join Date: Apr 2006 Location: Thane Posts: 334 Thanked: 4 Times	Subaru Boxer Diesel Engine Came across this while surfing the net SUBARU \| SUBARU BOXER DIESEL this is supposed to be a revolution in Diesel Engine tech, supposed to be better than the CRDI and Multijets, and its from Subaru. The all new Forester is being launched on 2nd Oct at the Paris Motor Show 08 which has this Boxer Diesel Engine. SUBARU \| SUBARU BOXER DIESEL SUBARU BOXER DIESEL \| A True Engineering Revolution Last edited by madhokritesh : 15th September 2008 at 10:41. Reason: Link Added
	() Thanks

15th September 2008, 13:32	#2
kcstheg BHPian Join Date: Jul 2007 Location: hyderabad Posts: 81 Thanked: 0 Times	Fantastic! I have always been a great fan of the Subarus'. They are awesome handlers. The diesel is also is surely going to impress one and all.
	() Thanks

15th September 2008, 16:29	#3
madhokritesh BHPian Join Date: Apr 2006 Location: Thane Posts: 334 Thanked: 4 Times	Now that Subaru is owned by Toyota lets see if they get it here or atleast use the Tech for their engines.
	() Thanks

15th September 2008, 16:38	#4
anonymous BHPian Join Date: Jan 2007 Location: NCR Posts: 565 Thanked: 25 Times	Great news for I think its been posted in wrong section. I really got excited to see this thread under Indian Car Scene but I do not think its going to happen soon
	() Thanks

15th September 2008, 21:04	#6
Harbir BHPian Join Date: Nov 2007 Location: Delhi Posts: 920 Thanked: 1,025 Times View My Garage	I'm sorry, but I missed how this is supposed to be a revolution in diesel technology.
	() Thanks

15th September 2008, 21:22	#7
reignofchaos Senior - BHPian Join Date: Apr 2007 Location: Bangalore Posts: 2,542 Thanked: 2,450 Times View My Garage	The basic claim to fame for this engine is the lack of balance shafts unlike other diesels. Most other diesels use balance shafts for reducing engine NVH which is substantially more in diesels. It avoids the problem by making two of its pistons move in the opposite direction and hence the vibration gets cancelled out. This philosophy is quite unlike an inline 4 and allows the engine to have a lower CoG as well. Lack of balance shafts allows the engine to be significantly smaller and lighter than conventional CRDI diesels. This should be an awesome diesel engine... probably even better than multijet. Last edited by reignofchaos : 15th September 2008 at 21:25.
	() Thanks

16th September 2008, 03:08	#8
Harbir BHPian Join Date: Nov 2007 Location: Delhi Posts: 920 Thanked: 1,025 Times View My Garage	absence of balance shafts makes an engine significantly smaller and lighter than conventional diesels? I am skeptical of that claim.
	() Thanks

16th September 2008, 10:46	#9
madhokritesh BHPian Join Date: Apr 2006 Location: Thane Posts: 334 Thanked: 4 Times	The Boxer Diesel Engine tech is supposed to be more Fuel Efficient and Powerfull as compared to the Multijets and the CRDIs owing to the lighter engine thats what Subaru says.
	() Thanks

17th September 2008, 04:20	#11
Harbir BHPian Join Date: Nov 2007 Location: Delhi Posts: 920 Thanked: 1,025 Times View My Garage	I am sorry for being dense but I still don't get it. boxer engines and their traits are well established. Just adding diesel doesn't actually advance the state of the diesel art. To get into the diesel market, Subaru HAD to do it this way because their cars are engineered for boxer engines and are not crash approved with inline or V engines, even if such engines would fit, plus this allowed subaru to just used their existing engine architecture, albiet with strengthened blocks. I don't see much here that can be transfered to inline or V layout diesels that they will benefit from, nor do I see other manufacturers seeing much advantage to subaru's way that they go to boxer diesels for their own cars. Its fun and cool that subaru is making a boxer diesel, but I don't see anything revolutionary. A mild evolution at best.
	() Thanks