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      05-15-2012, 05:47 PM   #447

Drives: fat cars are still boats
Join Date: Jun 2007
Location: compensating a fat car with horsepower is like giving an alcoholic cocaine to sober him up.

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GM’s European arms, Opel and Vauxhall, are preparing to introduce three new engine families in the course of the following year:

The first new engine to be introduced is a turbocharged 1598 cc, four-cylinder gasoline unit with direct injection and Start/Stop. The new SIDI (spark ignition direct injection) ECOTEC engine will be available in various power outputs and across several car lines. Production at the Szentgotthardt plant in Hungary will begin in late 2012.

Smooth acceleration, strong pulling power, low noise levels and low fuel consumption were the main focus of the engine development. The emphasis was on torque with the engineers achieving up to 187.5 Nm (138 lb-ft) per liter of displacement—a benchmark for gasoline engines produced in high volume, according to GM. Maximum torque is up to 300 Nm (221 lb-ft) and is already available at 1,700 rpm. Peak power of up to 200 hp (149 kW) is reached at 4,700 rpm. Compared to the predecessor 1.6-liter turbocharged gasoline engine, fuel consumption and CO2 have been cut by 13%.

"Our new 1.6 liter direct-injection engine is a real giant in terms of torque. Power builds up very smoothly and quietly"

—director of gasoline engines, Thomas Johnen

Jaguar will also offer a 240-horsepower 2.0-liter turbo four which can be one of the powerplants in the forthcoming Jaguar F-TYPE roadster:

The introduction of the Turbocharged I4 to the Jaguar range brings greatly improved efficiency* with competitive power outputs. This new engine will be used in a longitudinal configuration and mated to the new ZF eight-speed automatic transmission that will be used on the V6. Again, this transmission's large spread of ratios maximizes both performance and efficiency. Producing 240hp at 5,500 rpm, this engine offers a highly flexible powerband.

With a weight of only 304 lbs (138kg), courtesy of compact dimensions and all-aluminum construction, it is the lightest engine ever fitted into a production Jaguar. This low mass improves dynamic agility while bringing further emissions and economy benefits.

The engine uses of a low-inertia turbocharger that enables it to produce its high-specific power and torque outputs. The turbocharger is fed via a lightweight thin-walled exhaust manifold which offers a shorter engine warm-up period and faster catalyst light-off. Chain-driven cams operate with variable timing on both the intake and exhaust valves to maximize the broad spread of torque.

The engine features specialized coatings on the piston rings and tappets in order to reduce unwanted internal friction. Efficiency and power gains are also realized using direct injection technology. Fuel is injected in precisely measured doses several times during each combustion cycle to ensure the most efficient possible burn with the maximum benefit in terms of power generation while maintaining the lowest possible fuel consumption and emissions.

Significant steps have been taken to ensure expected levels of smoothness and sophistication refinement including twin balancer shafts, active engine mounts, an acoustic engine cover, and the use of additional sound insulation.


240hp Turbocharged 2.0-liter I4
Engine type: four-cylinder, in-line, turbocharged
Capacity (cc): 1999
Bore/stroke (mm): 87.5/83.1
Peak power (HP@rpm): 240@5500

The Toyobaru will not be an exception...