




Volkswagen Passat TDI



Source: Detroit News

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RE: diesel vs. gasoline?
By PaFromFL on 4/3/2013 7:39:10 PM , Rating: 2
With turbo direct injection, you don't need to use premium gasoline. Direct injection cools the cylinders so that a higher compression ratio can be used with regular gasoline. The turbocharger yields a broad torque curve, like a Diesel, while still producing a lot of horsepower at higher revs (unlike a Diesel).

For example, the 2.0 L (122 cu. in.) Hyundai direct injected turbocharged engine produces
274 hp (204 kW) (premium fuel)
260 hp (190 kW) (regular)
275 lb·ft (373 N·m) @ 2,000–4,500 rpm (premium fuel)
260 lb·ft (353 N·m) (regular).

RE: diesel vs. gasoline?
By lagomorpha on 4/4/2013 7:35:04 AM , Rating: 2
It probably doesn't hurt that a lot of turbocharged engines tend to have a longer stroke in proportion to the bore because they don't need to rev to quite as high an rpm to produce sufficient power. This also gives them more torque at lower rpm.

