The Subaru boxer diesel

[Wayne M.]

I've been waiting to see how this turns out. Cool video too.





YouTube - Subaru Boxer Turbo Diesel Engine

 

[The patriot]

shweet vid! I think I saw a commercial that mentioned the boxer engine.

 

[Wayne M.]

They have always had boxers, but never a diesel

 

[Regcabguy]

If Subaru releases a boxer diesel,my Pilot goes in for a trade. My buddy's gm of a Subaru dealer.

 

[JimB1]

Subaru website doesn't show diesel option.



Do you know what year for this option?

 

[JacobsD]

I think its still under R&D. But I would buy one right away. Subaru builds the best car by far in my opinion. I know at work its always a pleasure to have a Subie come in for repair, over a Honda or Toyota.

 

[Gary - K7GLD]

Subaru website doesn't show diesel option.



Do you know what year for this option?

The Subaru diesel boxer is supposedly 2 years away for the USA, according to a Motor Trend report...

 

[ToolManTimTaylor]

First Subaru Diesel Engines Launched in Europe



FIRST SUBARU DIESEL ENGINES LAUNCHED IN EUROPE



In the Subaru News section of the Summer 2007 issue of Drive, we presented information about the Subaru Boxer Turbo Diesel engine introduced at last year’s 77th Geneva International Motor Show. Considered the world’s first horizontally opposed turbo diesel engine, the 2. 0-liter, four-cylinder unit is the first diesel engine developed by Subaru. It went on sale in European Legacy and Outback models near the end of January 2008.



Subaru of America, Inc. is studying the feasibility of bringing Subaru diesel models to North America within the next few years. #@$%! :-{} #@$%!

 

[GHarman]

The Subaru diesel boxer is supposedly 2 years away for the USA, according to a Motor Trend report...

That will give'em time to really do some innovation. Their automobiles are fantastic but they have their weak spots. Head gaskets, EGR valves, oil pumps, water pumps, timing belts. A four banger Boxer Diesel with a counter balance shaft and a turbo would be a real piece of machinery as long as the drivetrain will handle the torque and vibration. Our 2. 5L gas Outback ran for 11 years and 227,000 miles plus before blowing a head gasket. My Wife drove it like Mario Andretti. I hope to replace the motor with a used unit when I can save up the funds. I would forgo that project if I could get a Diesel Outback or Forester. GregH

 

[ToolManTimTaylor]

A four banger Boxer Diesel with a counter balance shaft and a turbo would be a real piece of machinery as long as the drivetrain will handle the torque and vibration.

The real triumph there has been the development of the US - spec STi. Granted it's a 6 speed trans but with 300Hp/300Ftlbs of Tq the drivetrain has been for the most part "bulletproof". Case-in-point is my buddies 04 STi. Last dyno was 347/340Tq AT THE WHEELS on the dynopac @ tripple X performance in Htfrd. It has been at that level for 3 years and he is not easy on it. It now has Meth and a more aggressive tune and still nothing has given way.



Now the weak link has always been the subie AUTO trans. Ever scince the forrester XT in '05 they have come far enough that I think the auto will hold the diesel.

 

[GHarman]

The aluminum housings for the drivetrain components are my concern. Aluminum has a finite life span (work hardening) compared to iron/steel. I am a layman as far as my understanding of this concept. However, as a former weldor, I have seen many failures of aluminum components in stress/vibration positions where a welding repair was requested. So many aluminum repairs, very few C. I. /steel repairs for similar components. GregH

 

[jwgary]

SUBARU | SUBARU BOXER DIESEL

 

[ToolManTimTaylor]

The aluminum housings for the drivetrain components are my concern.

Greg, have you looked under your truck lately ... if ever :-laf

 

[Gary - K7GLD]

Greg, have you looked under your truck lately ... if ever :-laf

I don't remember very much aluminum in the drivetrain of my old '91 - or any of the 1st or 2nd generation non-4x4 trucks with manual trannies... :-laf



But I *have* heard of a fair amount of issues with the aluminum transfer cases on the 4x4's...



And, Greg didn't say he was "unaware" - only that he was "concerned"... :-laf



Did I miss something? :-laf

 

[CumminsBu]

Another car to add to the wish list, to bad it will come at a bad time with super high diesel prices.

 

[GHarman]

Greg, have you looked under your truck lately ... if ever :-laf

Tim, Sorry that you think I am so ignorant. Wouldn't dream of you even checking out my 1st Gen posts on "Old Ugly". I was crankin wrenches on a Diesel while you was S!!!!!!!! yellow. :-laf . "Course I make no claims to be a mechanic, but be careful of condesention with us old farts

That bein' said, My first Gen does have a aluminum bell housing (gasp). But it only has <186000 miles on it and it is not a gear carrier or is it subject to wild temperature variations, like a head is subjected to. I had a '79 Diesel rabbit with the cast iron block and aluminum head. By 175,000 miles the head was cracked between the exhaust and intake valve ports on all 4 cylinders.

I dont remember how many times I was approached to weld up a cracked auto transmission housing fer some of the many types of vehicles out there. Most werent worth the time because of the damage and amount of rework required. However I did do a couple that worked great. How about a break, Tim? GregH

 

[HoleshotHolset]

Don't blame the aluminum...

Aluminum heads + iron block can be done well and done right. Heck, even an all aluminum block/head can be done right. In this case, I think a few bad apples have soured the entire bunch for you.



I'll also counter that cast iron repair work can go equally south in the same fashion as aluminum... . but your mileage may vary. There's a fine line one can walk between the "fix it or trash it" decision...



Your beloved 1st Gen VE44 has a lot of aluminum in it... and dare I say this... our beloved P7100 also has a lot of aluminum in it. Both of those go through some temperature swings without isses...



Airplanes love aluminum... so do the ladies in your life when they prepare the Thanksgiving turkey on the throwaway pans.



Subaru Impreza + STi drivetrain + boxer diesel = Holeshot selling his Toyota



Beers,



Matt

 

[GHarman]

Aluminum heads + iron block can be done well and done right. Heck, even an all aluminum block/head can be done right. In this case, I think a few bad apples have soured the entire bunch for you.



I'll also counter that cast iron repair work can go equally south in the same fashion as aluminum... . but your mileage may vary. There's a fine line one can walk between the "fix it or trash it" decision...



Your beloved 1st Gen VE44 has a lot of aluminum in it... and dare I say this... our beloved P7100 also has a lot of aluminum in it. Both of those go through some temperature swings without isses...



Airplanes love aluminum... so do the ladies in your life when they prepare the Thanksgiving turkey on the throwaway pans.



Subaru Impreza + STi drivetrain + boxer diesel = Holeshot selling his Toyota



Beers,



Matt

Beers and Coffee to you Matt! I am on my THIRD VE pump. I refuse to eat food cooked on aluminum as a matter of daily habit. Yes C. I can have repair issues, but, statisitically speaking, Aluminum will fail before C. I. in similar applications. Aluminum has twice the Coefficient of expansion as C. I. and it work hardens and cracks much faster than C. I. When mated in engine configurations such as Heads (Al) and Blocks(C. I. ) you have a not so happy marriage. What are the issues with the GM/Isuzu Duramax? Same setup?

Impreza? An Outback Legacy or a Forrester preferably. GregH

 

[BILLVO]

If Subaru brings the boxer diesels to the USA in a couple of years it will be perfect timing to upgrade the 03 VW Jetta TDI about then. Should be close to 200k miles in a couple of years. Myself and my wife have had Subs in the past and they are some tough rigs.

 

[ToolManTimTaylor]

Tim, Sorry that you think I am so ignorant. Wouldn't dream of you even checking out my 1st Gen posts on "Old Ugly". I was crankin wrenches on a Diesel while you was S!!!!!!!! yellow. :-laf . How about a break, Tim? GregH

Hrmph . . Alright, well being you feel like you HAD to unload on me for some reason or another . . Bad day, undies in a bunch, whatever it was ... . YOU said

The aluminum housings for the drivetrain components are my concern ... . I have seen many failures of aluminum components in stress/vibration positions where a welding repair was requested

Then KIDDINGLY I said "Greg, have you looked under your truck lately ... if ever "



With a :-laf at the end ..... there are a lot to choose from #ad
but :-laf seemed the international symbol for joking.



Sooo the reason I said that is the bell housing on your truck puts up with a good amount of twisting force being it not only is a mating surface it also has another job to deal with. The Cummins is dishing out torque to a transmission that is held still partly by the bell housing itself forcing power through its various gears to the rear axle (Or t-case). It is as you pointed out, Aluminium.