On the first day of the new year, I was pleasantly surprised that the 1.6 GDTI engine from Volvo has finally made its debut in Singapore in the form of the estate version of the S60, the V60. I decided to do some technical research on this ‘TSI’ rivaling powerplant and would like to share it with fellow forum members.

The 1.6 GTDi T3 with 150 horsepower and the T4 with 180 horsepower are available in the all-new Volvo S60 and V60. The V60 in Singapore is getting the T4 version, and I guess the S60 T4 will be available here very soon. The 180 hp engine delivers maximum torque of 240 Newton meters from just 1600 and all the way up to 5000 rpm. An on-demand overboost function provides a massive 270 Newton meters of torque. The result is excellent pulling power across the entire speed range. The 150 hp version offers 240 Newton meters of torque.

The new GTDi engines have a compact format and are made entirely from die-cast aluminum, which gives low weight and good heat-dissipation capability. Volvo has chosen to position each injector centrally above the piston, just beside the spark plug. The injectors have six holes each, somewhat unusual for centrally positioned injectors. This gives particularly uniform and finely atomized fuel distribution. The centrally located multi-hole injector makes it possible to control fuel dosage extremely precisely. In cold starts, the fuel is sprayed into the middle of the combustion chamber just prior to ignition. The high fuel injection pressure of 100 bar means that preparation is perfect and less fuel ends up on the cold combustion chamber walls. This helps cut emissions and considerably reduces the amount of fuel consumed. In cold starts, this injection technology also contributes to quick heating of the catalytic converter, which in turn hastens the exhaust cleaning process. Direct injection also helps the turbo to start up earlier and provides swift response even from low engine revs. This in turn promotes fast acceleration and good driveability from low speeds.

In addition to direct injection and turbo charging, the GTDI engines utilize variable valve timing for both camshafts. Both the inlet and exhaust valves' opening times can be varied to optimize overlap and ensure exactly the right fill in the combustion chamber, irrespective of engine revs. This optimizes combustion throughout the rev range and contributes to swift acceleration in all operating conditions.

The 1.6 GTDi T4 will be available in combination with Volvo's automatic six-speed Powershift transmission or a six-speed manual gearbox. The 1.6 GTDi T3 will only by available with a six-speed manual gearbox, which could explain its absence from the automatic-dominated Singapore market. Below are the engine specifications of the T3 and T4, and I can’t wait to read the local review of the T4 V60.


Engine specifications 1.6 GTDi T3:

Engine type: 4-cylinder gasoline turbo
Displacement: 1595 cm3
Bore: 79.0 mm
Stroke : 81.4 mm
Compression ratio: 10.0:1
Valves per cylinder: 4
Camshafts: DOHC
Max power output: 110 kW (150 hp)
Max torque: 240 Nm
Emissions: Euro 5

Engine specifications 1.6 GTDi T4:
Engine type: 4-cylinder gasoline turbo
Displacement: 1595 cm3
Bore: 79.0 mm
Stroke: 81.4 mm
Compression ratio: 10.0:1
Valves per cylinder: 4
Camshafts: DOHC
Max power output: 132 kW (180 hp) / 5500 rpm
Max torque: 240 Nm / 1600-5000 rpm, 270 Nm for brief overboost
Emissions: Euro 5

volvo, gdti, s60, volvo engine

Viewed: 1,287 times