Turbo-charging will take place in almost every new engine developed by manufacturers. It is very useful way for boosting the engine power and lowering the consumption and harmful emissions.

The engineers from Alfa Romeo are bringing to your attention their new 1750 TBi – 200bhp petrol engine and the 2.0JTDm diesel with 170bhp.

The 1750TBi is achieving it's maximum torque of 320Nm at just 1400rpm, which is amazing for a petrol engine. This means that you can easily accelerate and take over at greater gear without any difficulties. The emissions are as low as 189 g/km, which means lower taxes and environmentally friendly car. The sporty character is underlined by the typical discipline  0-62mph come just in 7.7 seconds.

Last, but not least, the 1750 TBi has a mileage extension to 21,000 miles between routine maintenance intervals.

The 2.0JTDm common rail diesel has 170bhp and delivers 360Nm of torque. It covers 0 – 62 mph sprint in 8.8 seconds and the CO2 emissions have been reduced to just 142 g/km. This amazing results are achieved by increasing the displacement from 1910 to 1956 cc. The size of the bore is extended from 82 mm to 83 mm. It is also used a new variable geometry turbo.

Adding to the driver appeal of the new 170 bhp 2.0 JTDM version, routine maintenance intervals have been extended to 21,000 miles.

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Full press release:

Italian sporting car manufacturer, Alfa Romeo, has just introduced two brand new Euro 5-compliant engines for the Alfa 159 range - the 1750 TBi and the 2.0 JTDM. Both the Alfa Brera and Alfa Spider will benefit from these powerplants later in the year.

These two new high technology petrol and diesel engines will complement existing petrol and diesel units in the 159 range and introduce a combination of increased torque and power with lower emissions and greater fuel efficiency.

1750i 200 BHP TURBO PETROL ENGINE

The new Alfa Romeo 159 1750 TBi embodies a long heritage of motoring excellence, taking its name from its successful saloon ancestor, the Alfa 1750 Berlina. Alfa Romeo's new, lightweight, variable valve timing, direct injection turbocharged engine develops an impressive 200 bhp along with 320 Nm of torque to bring new levels of drivability to the Alfa 159 range.

Perfectly complementing the current engine line-up, the new 16-valve, twin overhead camshaft 1742 cc petrol unit brings keen fuel efficiency to Alfa 159 Saloon and Sportwagon versions, along with lower CO2 emissions, down to 189 g/km – resulting in a six-band drop in company car BIK taxation compared to the older 2.2 JTS engine.

Significantly, through a process known as ‘scavenging', the maximum torque of Alfa Romeo's new petrol engine is achieved at just 1400 rpm – a little more than tickover speed – with maximum power reached between 4750 and 5500 rpm.

From a standstill, the 1750 TBi Alfa 159 Saloon can reach the 0 - 62 mph benchmark in 7.7 seconds, before topping out at 147 mph. However it is the flexibility of the in-gear acceleration that sets the engine apart from its competitors; with 25 - 62 mph in fifth gear achievable in 11.5 seconds and 37 – 62 mph in sixth gear reached in just 8.9 seconds – this translates, in real world driving, to a more sporting driver experience consistent with a ‘flat' torque curve and a constant delivery of power – perfect for confident overtaking and long distance driving.

In addition, the 1750 TBi version includes a mileage extension to 21,000 miles between routine maintenance intervals.

2.0 JTDM 170 BHP DIESEL ENGINE

Given that Alfa Romeo introduced common rail diesel technology more than 10 years ago on the Alfa 156, it should come as little surprise that it has now developed a new diesel unit that brings higher power and torque values, yet, at the same time, increases fuel efficiency and lowers CO2 emissions.

Alfa's new 2.0 JTDM powerplant develops 170 bhp available at just 4,000 rpm, and its advanced multijet technology means that this new 2.0 JTDM unit delivers its maximum torque of 360 Nm between just 1750 rpm and 2500 rpm.

Significantly, the new 2.0 JTDM powered Alfa 159 covers the 0 – 62 mph sprint in just 8.8 seconds - less than one second off the pace of the more powerful 2.4 JTDM engine, on its way to a top speed of 136 mph.

CO2 emissions have been reduced to just 142 g/km.

NEW TRIM LEVELS FOR ALFA 159 RANGE

To coincide with the launch of these new engines, Alfa Romeo has introduced a new range structure which now features five trim levels – Turismo, Turismo Sport, Elegante, Lusso and TI.

First of the two new trim levels, Turismo Sport offers drivers sporty upgrades including 17" sport alloy wheels, Blue&Me, sports seat cloth, sports leather steering wheel with remote audio controls and gear knob, and sports dials.

The new Elegante trim adds additional style to the already highly specified Turismo equipment, including rear parking sensors, visibility pack and luxury Alfatex® interior.

Each high specification trim level brings added choice in terms of comfort, refinement, technology and aesthetics.

Turismo
Turismo Sport
VDC with Hill Holder (ABS + ASR + EBD+ Brake Assistant) Dual zone automatic climate control with split temperature and distribution function As 159 Turismo plus:
Fire Prevention System (FPS) On-board instrumentation with multifunctional display and trip computer Sports cloth
Power assisted steering Car radio with audio CD player (8 speakers) Blue&Me™ (Bluetooth™ hands-free system with voice recognition and media player with USB port in the glove box)
Driver, passenger, front side, window & driver knee airbags Leather steering wheel and gear knob with remote audio controls Brushed darkened aluminium trim inserts & darkened roof lining
Isofix attachments on rear seats with third upper central attachment Front armrest with temperature controlled storage compartment 17" sports alloy wheels with 225/50 R17 tyres
Front seatbelts with pretentioners and load limiters Flocked Cloth upholstery Chrome exhaust tail pipe
Alfa code immobiliser and alarm system Twin exhaust tail pipes (1750 TBi only) Sports leather steering wheel & gear knob with remote audio controls
Electronic key with remote central locking and boot release Front seats manually adjustable (height, rake, lumbar adjustment for driver and passenger) Sports dials
Three rear head restraints Mechanical tilting action for driver and passenger seats
"Follow-Me Home" headlamps 16" Alloy wheels with 205/55 R16 tyres
Softouch darkened metallic finish centre console & trim inserts 17" Alloy wheels with 225/50 R17 tyres (1750 TBi only)
Electronic start / stop button Front fog lights
Electric front and rear windows with one touch function and anti-intrusion sensor 60/40 split folding rear seats (Sportwagon only)
Cruise control

Elegante TI
As 159 Turismo plus: As 159 Elegante plus:
Alfatex® upholstery Sports leather seats with manual adjustments
Blue&Me™ (Bluetooth™ hands-free system with voice recognition and media player with USB port in the glove box) Brushed darkened aluminium trim inserts & darkened roof lining
Car radio with audio CD player & MP3 reader 19" unique spoke design alloy wheels with 235/40 R19 tyres
Darkened aluminium centre console & trim inserts Red Brembo brake callipers (front & rear)
Rear parking sensors Lowered sports suspension and body kit
17" alloy wheels with 225/50 R17 tyres Chrome effect wing mirrors
Visibility pack (rain, dusk & condensation sensors, AQS(1) electrochromic rear view mirror with deactivation button) 60/40 split folding rear seats
Stainless steel kick plates Sports leather steering wheel & gear knob with steering wheel mounted audio controls
Twin exhaust tail pipes (Not on 1.9 JTDM and 2.0 JTDM) Red stitched interior detailing
Aluminium brake callipers with Alfa Romeo designation (Not available on 1.9 JTDM and 2.0 JTDM) Aluminium sports pedals
Stainless steel kick plates with TI designation
Lusso Sports Dials
As 159 Elegante plus: Front Seats with three stage heating
Leather upholstery
Tri-Zone automatic climate control with split temperature and distribution function
Electrically folding, adjustable and heated wing mirrors

UNDER THE BONNET – TECHNOLOGY IN ACTION 1750 TBi 200BHP PETROL ENGINE

Scavenging

The enhanced performance of this continuously variable valve timing engine is the result of applying ‘scavenging technology', maximising torque at very low engine speeds.

This is achieved by monitoring and optimising engine parameters such as fuel measurement, injection timing and spark advance. Managed by a new ECU, it is possible to define the angle and times of valve overlap in order to generate airflow from the inlet manifold to the exhaust manifold and therefore activate the turbocharger very quickly.

This new process allows for maximum exploitation of the turbocharger compared to conventional turbocharged petrol engines.

The results are maximum torque at just 1500 rpm – 70% greater than that of a conventional turbo engine – and throttle response times slashed by half.

Direct Injection

Direct injection with an advanced double-injection strategy is essential to reduce emissions. Allowing direct control of fuel metering during the scavenging process, it is possible to prevent unburnt fuel ending up in the exhaust, which affects the catalytic converter. The secondary injection system has a new high-pressure pump and new 7-aperture injectors which guarantee perfect vaporisation.

This allows excellent performance to be achieved even in the presence of relatively high compression, and provides low consumption at cruising speeds.

Dual variable valve timing (VVT)

The two continuous phase variators on both inlet and exhaust camshafts optimise the valve timing at all speeds, minimizing consumption and emissions. In addition, by coupling the two variators to the turbocharger, the ‘scavenging' strategy is accurately controlled.

In response to a sudden torque request from the driver, it is therefore possible to significantly accelerate engine response, even from low RPM.

Turbocharger

This engine incorporates a new generation KKK fixed geometry turbocharger connected to an innovative pulse converter-type exhaust manifold which optimises the use of exhaust pressure waves to increment driving torque at low speeds. Both manifold and turbine are made of microcast steel so that they can withstand very high working temperatures (up to a maximum of 1020 °C). This is important for a reduction in fuel consumption while operating at medium/high speed.

Thermal fluid dynamics

The inlet ports have been designed using new technology allowing the optimal level of turbulence to be created. This results in the correct mixing of air and fuel. The combustion chambers have also been optimised by using ‘squish' areas, minimising the surface-to-volume ratio and therefore benefitting combustion efficiency.

Friction

The entire engine has been designed to reduce losses through friction. Pistons have ‘flexible' rings to limit tangential load and advanced materials have been used to reduce wear. In addition, the aluminium alloy cylinder head design incorporates roller rocker arms that help reduce losses through sliding contact by up to 65 % at 2000 rpm, compared to traditional cylinder heads with hydraulic tappets.

An optimised crankshaft design based on long connecting rods but a comparatively short stroke, has cut to a minimum the high speed vibration normally associated with four-cylinder engines, obviating the need for balancer shafts.

Performance

A new engine management system combined with a scavenging strategy has achieved new ‘benchmark' levels for engine performance.

The specific torque achieved, (185 Nm per litre) is among the highest for modern petrol engines. With 320 Nm of torque available, the power unit offers significant benefits to the driver, including excellent pick-up performance, resulting in fewer gear changes.

Emissions

As a result of dual injection and high injection pressure, the engine's emissions values meet the Euro 5 limit with a relatively small catalytic converter and consequent positive effects on performance. With the production of 189 g/km of CO2 the new Alfa 1750 TBi engine sits in VED Band J.

UNDER THE BONNET – TECHNOLOGY IN ACTION 2.0 LITRE 170 BHP DIESEL ENGINE

Alfa's new 170 bhp 2.0 JTDM diesel engine is an evolution of the hugely successful 1.9 JTDM and delivers clear and measurable benefits to the driver and the environment.

Increased torque and power make the driving experience more relaxed and responsive, while CO2 emissions have been reduced to as low as 136 g/km (on the combined cycle), meeting the Euro 5 standard and placing the model in VED Band E.

Performance is boosted from 150 to 170 bhp by increasing the displacement from 1910 to 1956 cc – achieved through extending the size of the bore from 82 mm to 83 mm - and the use of a new variable geometry turbo.

At the same time, fuel economy has been improved by friction optimisation, and a lowered compression ratio (16.5:1) results in a significant decrease in NOx emissions. Low viscosity oil and new calibrations made possible by using a close-coupled diesel particulate filter and an evolved exhaust gas recirculation system all play their part.

The result is low CO2 emissions in line with the most stringent European benchmarks.

Adding to the driver appeal of the new 170 bhp 2.0 JTDM version, routine maintenance intervals have been extended to 21,000 miles.

THE 159 RANGE

Alfa 159 Saloon TotalOTR £ Alfa 159 Sportwagon TotalOTR £
1.9 JTDM 120 BHP ECO TURISMO 19950 1.9 JTDM 120 BHP ECO TURISMO 21050
1.9 JTDM 120 BHP ECO TURISMO SPORT 20750 1.9 JTDM 120 BHP ECO TURISMO SPORT 21850
1.9 JTDM 150 BHP TURISMO 20700 1.9 JTDM 150 BHP TURISMO 21800
1.9 JTDM 150 BHP TURISMO SPORT 21500 1.9 JTDM 150 BHP TURISMO SPORT 22600
1.9 JTDM 150 BHP ELEGANTE 21650 1.9 JTDM 150 BHP ELEGANTE 22750
1.9 JTDM 150 BHP LUSSO 22750 1.9 JTDM 150 BHP LUSSO 23850
1.9 JTDM 150 BHP TI 23850 1.9 JTDM 150 BHP TI 24950
1.9 JTDM 150 BHP QTRONIC ELEGANTE 23100 1.9 JTDM 150 BHP QTRONIC ELEGANTE 24200
1.9 JTDM 150 BHP QTRONIC LUSSO 24200 1.9 JTDM 150 BHP QTRONIC LUSSO 25300
1.9 JTDM 150 BHP QTRONIC TI 25300 1.9 JTDM 150 BHP QTRONIC TI 26400
2.0 JTDM 170 BHP TURISMO 21800 2.0 JTDM 170 BHP TURISMO 22900
2.0 JTDM 170 BHP TURISMO SPORT 22600 2.0 JTDM 170 BHP TURISMO SPORT 23700
2.0 JTDM 170 BHP ELEGANTE 22750 2.0 JTDM 170 BHP ELEGANTE 23850
2.0 JTDM 170 BHP LUSSO 23850 2.0 JTDM 170 BHP LUSSO 24950
2.0 JTDM 170 BHP TI 24950 2.0 JTDM 170 BHP TI 26050
2.4 JTDM 210 BHP ELEGANTE 24150 2.4 JTDM 210 BHP ELEGANTE 25250
2.4 JTDM 210 BHP LUSSO 25250 2.4 JTDM 210 BHP LUSSO 26350
2.4 JTDM 210 BHP TI 26350 2.4 JTDM 210 BHP TI 27450
2.4 JTDM 200 BHP QTRONIC ELEGANTE 25600 2.4 JTDM 200 BHP QTRONIC ELEGANTE 26700
2.4 JTDM 200 BHP QTRONIC LUSSO 26700 2.4 JTDM 200 BHP QTRONIC LUSSO 27800
2.4 JTDM 200 BHP QTRONIC TI 27800 2.4 JTDM 200 BHP QTRONIC TI 28900
2.2 JTS 185 BHP ELEGANTE 21450 2.2 JTS 185 BHP ELEGANTE 22550
2.2 JTS 185 BHP LUSSO 22550 2.2 JTS 185 BHP LUSSO 23650
2.2 JTS 185 BHP TI 23650 2.2 JTS 185 BHP TI 24750
1750 TBI 200 BHP TURISMO 21800 1750 TBI 200 BHP TURISMO 22900
1750 TBI 200 BHP TURISMO SPORT 22600 1750 TBI 200 BHP TURISMO SPORT 23700
1750 TBI 200 BHP ELEGANTE 22750 1750 TBI 200 BHP ELEGANTE 23850
1750 TBI 200 BHP LUSSO 23850 1750 TBI 200 BHP LUSSO 24950
1750 TBI 200 BHP TI 24950 1750 TBI 200 BHP TI 26050
3.2 JTS 260 BHP ELEGANTE 25600 3.2 JTS 260 BHP ELEGANTE 26700
3.2 JTS 260 BHP LUSSO 26700 3.2 JTS 260 BHP LUSSO 27800
3.2 JTS 260 BHP TI 27800 3.2 JTS 260 BHP TI 28900

Characteristics 2.0 JTDM 16v 1750 TBi
No of cylinders, arrangement 4 in line 4 in line
Bore x stroke (mm) 83 x 90.4 83.0 x 80.5
Displacement (cc) 1956 1742
Compression ratio 16.5 : 1 9.5 : 1
Max power output bhp (kW-EC) at rpm 170 (125) 4000 200 (147) 5000
Peak torque Nm(kgm-EC) at rpm 360 (36.7) 1750 320 (32.7) 1400
Timing system 2 OHCs (toothed belt), 4 valves per cylinder, hydraulic tappets, 2 OHCs (toothed belt), 4 valves per cylinder, hydraulic tappets with roller finger
Fuel feed MultiJet direct injection with turbocharger and intercooler, Bosch EDC 16C39 electronic engine management system MED 17 direct injection with turbocharger integrated with ignition, scavenging functional mode
Exhaust pipe One with polished tip Double with separate silencers and chrome tips
ELECTRICAL SYSTEM (12V)
Battery: capacity (Ah) / Generator (A) 90 / 150 90 / 120
TRANSMISSION
Drive Front Front
Number of gears 6 + 1R 6 + 1R
Final ratio 3.545 : 1 3.941 : 1
TYRES
Standard version 205/55 R16 225/50 R17
STEERING SYSTEM
Steering system Rack and pinion with hydraulic servo Rack and pinion with hydraulic servo
Steering diameter kerb-to-kerb m) 11.1 11.1
SUSPENSION
Front High double wishbone
Rear Multilink
BRAKES – (DISCS)
Front (mm) Ventilated 305 x 28 D,60 mm floating calliper Ventilated 330 x 28 D, fixed radial calliper in aluminium with 4 Æ 42 mm pistons
Rear (mm) Solid 278 x 12 D, combined 38 mm floating calliper Ventilated 292 x 22 D, combined 42 mm floating calliper
WEIGHTS – TANK CAPACITY
Fuel tank (l) 70 70
Kerb weight DIN (kg) 1490 (1540) 1430 (1480)
Max towable weight (kg) 1500 1500
PERFORMANCE
Top speed mph (km/h) 136 (218) [135 (216)] 147 (235) [146 (233)]
Acceleration (driver + 30 kg) 0-62 mph (s) 8.8 [9.0] 7.7 [7.9]
FUEL CONSUMPTION – EMISSIONS*
urban cycle mph (l/100 km) 39.8 (7.1) [39.2 (7.2)] 23.9 (11.8) [23.5 (12.0)]
extra-urban cycle mpg (l/100 km) 64.2 (4.4) [62.8 (4.5)] 47.1 (6.0) [45.6 (6.2)]
combined cycle mpg (l/100 km) 52.3 (5.4) [51.4 (5.5)] 34.9 (8.1) [34.0 (8.3)]
Exhaust emissions – CO2 (g/km) 142 [145] 189 [194]
Emissions Standard EU V EU V

* Information in brackets ( ) indicates data for the Alfa 159 Sportwagon