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  2. Subaru FA engine - Wikipedia

    en.wikipedia.org/wiki/Subaru_FA_engine

    It has the same displacement as the FA24F turbocharged engine with an identical 94×86 mm bore and stroke, but the compression level is increased to 12.5:1. [18] [19] Fitting the existing FA24F, with its bottom-mounted turbo, to the second generation Subaru BRZ/Toyota 86 would have required raising the price and overall center of gravity, so ...

  3. Toyota GR engine - Wikipedia

    en.wikipedia.org/wiki/Toyota_GR_engine

    The Toyota GR engine family is a gasoline, open-deck, piston V6 engine series. The GR series has a 60° die-cast aluminium block and aluminium DOHC cylinder heads.This engine series also features 4 valves per cylinder, forged steel connecting rods and crankshaft, one-piece cast camshafts, a timing chain, [1] and a cast aluminium lower intake manifold.

  4. Compression ratio - Wikipedia

    en.wikipedia.org/wiki/Compression_ratio

    For example, if the static compression ratio is 10:1, and the dynamic compression ratio is 7.5:1, a useful value for cylinder pressure would be 7.5 1.3 × atmospheric pressure, or 13.7 bar (relative to atmospheric pressure). The two corrections for dynamic compression ratio affect cylinder pressure in opposite directions, but not in equal strength.

  5. GM small gasoline engine - Wikipedia

    en.wikipedia.org/wiki/GM_small_gasoline_engine

    The LFV is a direct-injection 1.5 L turbocharged SGE variant, with a 74 mm × 86.6 mm (2.91 in × 3.41 in) bore and stroke for a total capacity of 1,490 cc (1.5 L). Compression ratio is 10.0:1 and the engine can run on regular unleaded-grade gasoline. Maximum engine speed is 6500 rpm. Automatic Start-Stop is available with this engine. Assembly ...

  6. Air–fuel ratio - Wikipedia

    en.wikipedia.org/wiki/Air–fuel_ratio

    In naturally aspirated engines powered by octane, maximum power is frequently reached at AFRs ranging from 12.5 to 13.3:1 or λ of 0.850 to 0.901. [citation needed] The air-fuel ratio of 12:1 is considered as the maximum output ratio, whereas the air-fuel ratio of 16:1 is considered as the maximum fuel economy ratio. [citation needed]

  7. Hyundai Smartstream engine - Wikipedia

    en.wikipedia.org/wiki/Hyundai_Smartstream_engine

    The Smartstream G1.5 T-GDI (G4LH) is a turbocharged 1,482 cc (1.5 L) inline 4-cylinder engine with GDi from the Kappa family that carries a bore and stroke of 71.6 mm and 92 mm [12] respectively and a 10.5:1 compression ratio; it makes 160 PS (118 kW; 158 hp) at 5,500 rpm and 25.8 kg⋅m (253 N⋅m; 187 lbf⋅ft) of torque between 1,500 and ...

  8. Toyota AZ engine - Wikipedia

    en.wikipedia.org/wiki/Toyota_AZ_engine

    The 2AZ-FE engine in the 2007-2009 Camry and 2006-2009 Rav4 may burn excessive oil and is involved in this lawsuit. [1] Other engines are also affected. [2] If this Toyota engine is burning more than 1 US quart (946 ml) of oil in 1,200 miles (1,931 km), has less than 150,000 miles (241,402 km), is less than 10 years old, and is located in the U.S., Toyota service will perform a free oil ...

  9. Yamaha YZF-R1 - Wikipedia

    en.wikipedia.org/wiki/Yamaha_YZF-R1

    Custom forged aluminum Marchesini wheels specifically designed for the LE shaved nearly a pound off ... Compression ratio 11.8:1 12.5:1 12.7:1 12.3 : 1 13.0 : 1 ...