enkeiavalanche
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This fall, General Motors will debut the most powerful V6 engine it has ever built. It is a 3.6L, 300 hp motor that will be introduced in the all-new Cadillac CTS and STS sedans. This performance-oriented engine will definitely provide specialty-equipment manufacturers a great opportunity to develop new products.
The new engine is even more powerful than the 3.8L turbocharged engine that powered the ?87 Buick GNX coupe. The secret of this motor is direct fuel injection or DI. ?DI moves the fuel injectors off the intake manifold and places them between the valves on the cylinder head,? as stated in a recent AutoWeek article. This enables a high compression ratio, thereby increasing power. Special pistons designed by GM engineers will ensure smooth starts in cold weather.
GM engineers also discovered a way to reduce noise from the fuel injectors, which operate under about 1,700 pounds of pressure. A collar, which lies between the injectors and the cylinder head, absorbs shocks and reduces any clicking noise as the injectors shoot fuel into the cylinders. Currently, only a handful of North American vehicles use DI. This number is expected to grow in the coming years as automakers strive to achieve more power and fuel economy out of engines while at the same time reducing emissions and reducing displacement. According to AutoWeek, this 3.6L engine ?may be Cadillac?s most important engine since the ?93 introduction of the Northstar V8.? That first Northstar, which was equipped with overhead cams and 32 valves, had 290 hp.
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Source: ?More Muscle: Cadillac?s direct injection allows V6 to pump out 300 hp,? AutoWeek
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The new engine is even more powerful than the 3.8L turbocharged engine that powered the ?87 Buick GNX coupe. The secret of this motor is direct fuel injection or DI. ?DI moves the fuel injectors off the intake manifold and places them between the valves on the cylinder head,? as stated in a recent AutoWeek article. This enables a high compression ratio, thereby increasing power. Special pistons designed by GM engineers will ensure smooth starts in cold weather.
GM engineers also discovered a way to reduce noise from the fuel injectors, which operate under about 1,700 pounds of pressure. A collar, which lies between the injectors and the cylinder head, absorbs shocks and reduces any clicking noise as the injectors shoot fuel into the cylinders. Currently, only a handful of North American vehicles use DI. This number is expected to grow in the coming years as automakers strive to achieve more power and fuel economy out of engines while at the same time reducing emissions and reducing displacement. According to AutoWeek, this 3.6L engine ?may be Cadillac?s most important engine since the ?93 introduction of the Northstar V8.? That first Northstar, which was equipped with overhead cams and 32 valves, had 290 hp.
.....
Source: ?More Muscle: Cadillac?s direct injection allows V6 to pump out 300 hp,? AutoWeek
Removed excess per Copyright rules.
Need link
