It's a Common rail
Subaru’s first in-house developed diesel engine and simultaneously, the world’s first boxer diesel unit has arrived on European shores where it will be available on the Legacy Sports Tourer and the Legacy Outback models. The Japanese manufacturer’s Boxer Diesel engine will initially only be fitted to European-market cars, with the new 2009 Forester receiving the engine in September and new Impreza three months later.
The horizontally-opposed ‘boxer’ turbocharged diesel engine delivers an output of 150 PS at 3,600 rpm along with 258 lb ft torque at just 1,800 rpm. Top speed for the Legacy 2. 0TD R Sports Tourer is 126 mph (202 km/h) with a 0-60 mph (96 km/h) time of 8. 5 seconds, while the Outback R is slightly slower at 124 mph (199 km/h) and 8. 8 seconds respectively. According to Subaru, the Legacy Sports Tourer 2. 0TD R returns 41. 2 MPG (US) or 5. 7 lt/100 km on the Combined Cycle while the Outback R, 40. 6 MPG (US) or 5. 8 lt/100 km. -Details and pics after the jump
PRESS RELEASE
‘IT’S HERE’ – WORLD’S FIRST BOXER DIESEL PASSENGER CAR – LEGACY SPORTS TOURER AND OUTBACK
Legacy Sports Tourer and Outback – world’s first Boxer Diesel passenger car
Exceptional smoothness, refinement, lightness, rigidity and throttle response
Low centre-of-gravity coupled with all-wheel drive provides superb handling and stability
Two-litre horizontally-opposed engine develops 150 PS and 258 lb ft torque
Class-leading fuel economy and low emissions
Almost 50 mpg Combined for Sports Tourer with 151 g/km CO2
126 mph top speed and 0-60 mph in 8. 5 seconds for Sports Tourer
Moving sound levels of 70. 5 dB (A) lower than Rolls-Royce Phantom’s 72. 0 dB (A)
Outstanding standard equipment includes HID headlamps with pop-out washers, electrically-folding door mirrors, front projector foglamps, CD player with MP3 facility, dual-zone climate control with rear outlets and cruise control
Standard active front head-restraints, dual-stage front airbags, head and chest-protecting side airbags, curtain airbags and ABS with EBD
Range starts at £19,995 OTR for Legacy 2. 0TD Sports Tourer
On sale Feb ’08
It’s here. The world’s first boxer diesel engined-passenger car has arrived, offering outstanding refinement, throttle response and fuel economy coupled with ultra-low emissions and exceptional handling thanks to the light weight and low centre-of-gravity of its horizontally-opposed powerplant.
On sale from February 2008, the Subaru Legacy Sports Tourer and Outback crossover mid-sized estates are priced from just £19,995 on-the-road for the Legacy 2. 0TD R model. Saloon versions may follow once supplies become more plentiful.
This is Subaru’s first diesel engine – developed in-house using over 40 years’ expertise in ‘boxer’ engine technology coupled with turbocharging know-how gleaned from the fierce World Rally Championship arena.
The Japanese manufacturer’s Boxer Diesel engine will initially only be fitted to European-market cars, with the yet-to-be introduced new Forester receiving the engine in September and new Impreza three months later.
Commenting on the models, Subaru (UK) Limited’s Managing Director, Lawrence Good, said: “The significance of this outstanding new Boxer Diesel engine to both sales opportunities and our dealer network cannot be underestimated.
“With a UK diesel market share now running at 40 per cent this is the answer to many loyal and potential customers’ future motoring needs. ”
The launch of the Boxer Diesel Legacy and Outback will be backed by a high-profile TV and print advertising campaign with the strap-line: “It’s Here”.
Class-Leading Figures
The 150 PS Boxer Diesel Legacy and Outback not only have the best fuel efficiency in the 4WD passenger car class but beat all main 2. 0 litre two-wheel drive rivals including the new Ford Mondeo TD and VW Passat – both in lower-powered 140 PS formats.
The Legacy Sports Tourer 2. 0TD R, for example, returns 49. 6 mpg on the Combined Cycle with 151 g/km of CO2.
Its 2WD Ford Mondeo estate equivalent returns 47. 9 mpg with 156 g/km, while the VW Passat 2. 0 TDI estate gives 47. 1 mpg and 158 g/km.
Comparing the new Legacy Sports Tourer with the 4WD version of the Passat – called the 2. 0 TDI 4Motion – shows the Subaru to be 8. 7 mpg better on the Combined Cycle with emissions down by 31 g/km compared to the VW.
Nor are these figures achieved at the expense of performance. The Legacy Sports Tourer has a 126 mph top speed and 0-60 mph time of 8. 5 seconds while the Outback is only slightly behind at 124 mph and 8. 8 seconds for the 0-60 mph dash.
Refinement is also a Boxer Diesel strongpoint, with official moving sound levels of 70. 5 dB (A) compared to the Mondeo’s 71. 0 and Passat’s 73 dB (A). Even a Rolls-Royce Phantom is higher at 72. 0 dB (A).
Thoroughly-Developed Package
The new Boxer Diesel Legacy and Outback are thoroughly-developed models in their own right with several unique features to suit their diesel application.
For example, the engine has liquid mounts, with the body benefiting from extra sound-proofing to enhance refinement, while the five-speed manual gearbox has higher ratios to suit the diesel’s stronger torque and lower engine speed.
The power-steering is now electric to improve fuel economy and carefully tuned for strong feel and response. Front spring rates have also been tuned to suit both the diesel engine and new steering system.
The Boxer Diesel’s front brakes have also been uprated and the gear-lever length reduced by 10 mm for a sportier, shorter throw.
Even the air-conditioning unit has been modified to provide hot air earlier in the engine’s warm-up cycle, diesel engines having different characteristics to petrol powerplants.
Visual changes include new cloth seat trim for Legacy and Outback R models and a discreet bonnet air intake scoop.
Boxer Diesel Secrets Explained
Exceptionally compact, light and strong
Low friction ‘Boxer’ balance cancels out vibration
Flat four’s low centre-of-gravity boosts handling agility
Punchy throttle response
Common-rail fuel-injection for greater efficiency
Solenoid injectors for compactness
Variable-vane turbocharger mounted under engine for low centre-of-gravity
Highly efficient, fast-warm catalytic converter also mounted under engine
Dedicated to the horizontally-opposed ‘boxer’ engine layout for over 40 years, Subaru engineers were determined to use this format for their first diesel engine.
The reasons were to create a light, compact, strong unit with reduced vibration, noise and internal friction compared to an in-line engine and for an ultra-low centre-of gravity.
This enhances handling agility and roadholding – especially when combined with Subaru’s renowned symmetrical all-wheel drive system.
In fact, the entire engine and transmission are not only mounted very low down but also within the wheelbase which further boosts chassis dynamics.
Cancelled Out Vibration
The 2. 0 litre Boxer Diesel has a class-leading light weight with the horizontally-opposed pistons effectively cancelling out the secondary harmonic vibration (vibration with twice the frequencies of the engine speed).
The crankshaft is short and highly rigid, minimising the vibrational noise of many diesel engines.
And the superior balance of the horizontally-opposed engine means internal rotational inertia and friction are drastically reduced compared with an in-line engine.
Reduced internal friction means throttle response is exceptionally lively and in keeping with Subaru’s sporty heritage.
Compared to Subaru’s 2. 0 litre engine fitted to the Impreza, Legacy and Forester, the 2. 0 litre Boxer Diesel has a 11 mm longer stroke and 6 mm smaller bore for a capacity of 1,998 cc versus 1,994 cc.
Attention: TDR Forum Junkies 
. Good fer you Bud! Yes, the Bell housing does take alot of torque, vibration and Support stresses. Yes it works. However, it is not the best choice. Subarus work, also! My 96 is presently at ~228,000 miles with a blown head gasket. No, I was not in a bad mood:-laf. When you rub a Marine 
