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  2. Dual ignition - Wikipedia

    en.wikipedia.org/wiki/Dual_ignition

    Dual ignition. A Jabiru 5100 flat-8 four-stroke aircraft engine with dual ignition, with two spark plugs per cylinder and two distributors. Dual Ignition is a system for spark-ignition engines, whereby critical ignition components, such as spark plugs and magnetos, are duplicated. Dual ignition is most commonly employed on aero engines, [1][2 ...

  3. Nissan Z engine - Wikipedia

    en.wikipedia.org/wiki/Nissan_Z_engine

    Note: All USDM gasoline Z20, Z22 and Z24 engines were known as NAPS-Z (NAPZ or NAPS-Z Nissan Anti-Pollution System), NAPZ motors had dual spark-plugs (two per cylinder) except the pre-82 versions and latest versions of the Z24i as fitted to the Pathfinder. All NAPZ engines sold in California reportedly had dual plug heads regardless of the year.

  4. Nissan CA engine - Wikipedia

    en.wikipedia.org/wiki/Nissan_CA_engine

    It produces 78 kW (106 PS; 105 hp) and 160 N⋅m (118 lb⋅ft). Fuel was delivered via Multiport Fuel Injection. Dual spark plugs per cylinder were used in some variants of this engine for enhanced combustion efficiency, called NAPS-X. It was used in the following vehicles: 1984-1988 Nissan 200SX (US & Canada) / Nissan Gazelle (Australia)

  5. Alfa Romeo Twin Cam engine - Wikipedia

    en.wikipedia.org/wiki/Alfa_Romeo_Twin_Cam_engine

    Alfa Romeo Twin Spark engine. Alfa Romeo's Twin Spark technology used dual ignition to fire two spark plugs in the cylinder head of each piston bore and was first used in the A.L.F.A. Grand Prix car of 1914. Racing versions of the Giulia engine, including the engine used in the GTA, featured a cylinder head with two spark plugs per cylinder.

  6. Alfa Romeo Twin Spark engine - Wikipedia

    en.wikipedia.org/wiki/Alfa_Romeo_Twin_Spark_engine

    The 'Twin Spark' engines. In the current Alfa Romeo world the "Twin Spark" name usually refers to the dual ignition engines installed in Alfa Romeo cars. The 8-valve engine was fitted initially to the Alfa Romeo 75 but also the 164 and 155. The 16-valve engines appeared in the 145, 146, 155, 156, 147, 166, Alfa Romeo GTV & Spider and Alfa Romeo ...

  7. Honda L engine - Wikipedia

    en.wikipedia.org/wiki/Honda_L_engine

    Honda L engine. The L-series is a compact inline-four engine created by Honda, introduced in 2001 with the Honda Fit. It has 1.2 L (1,198 cc), 1.3 L (1,318 cc) and 1.5 litres (1,497 cc) displacement variants, which utilize the names L12A, L13A and L15A. Depending on the region, these engines are sold throughout the world in the 5-door Honda ...