Honda L engine

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The L-series is a compact 4-cylinder engine created by Honda, introduced in 2001 with the Honda Fit. It has 1.2, 1.3, and 1.5 L 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 Brio Fit/Jazz hatchback and the 4-door Fit Aria/City sedan (also known as Fit Saloon). They are also sold in the Japanese-only Airwave wagon and Mobilio MPV.

Two different valvetrains are present on this engine series. The L12A, L13A, and one of the L15A varieties use (Japanese: i-DSI), or “intelligent Dual & Sequential Ignition”. This utilizes two spark plugs per cylinder which fire at different intervals during the combustion process to achieve a more complete burn of the gasoline. This process allows the engine to have more power while keeping fuel consumption low, thanks to the better gasoline utilization. Emissions are also reduced. The i-DSI engines have two valves per cylinder and a modest redline of only 6000 rpm, but reach maximum torque at mid-range rpm, allowing for decent performance without having to rev the engine at high speeds.

The other valvetrain in use is the VTEC on one of the two varieties of the L15A. This engine is aimed more at performance than efficiency with a slightly higher redline with 4 valves per cylinder, which reaches peak torque at higher rpm. However, it still offers a good combination of both performance and fuel efficiency. Both the i-DSI and VTEC have relatively high compression ratios at 10.8:1 and 10.4:1, respectively.

Before April 2006, the L-series were exclusively available with a 5-speed manual or a continuously variable transmission (CVT) automatic transmission. However, the introduction of the Fit in Canada and the United States was the first time an L-series engine has been mated to a traditional automatic transmission with a torque converter. The L12A i-DSI is available exclusively in the European domestic market Jazz and is sold with only a 5-speed manual transmission. The three other engines are available with a 5-speed manual, a CVT, a CVT with 7-speed mode, or a 5 speed automatic transmission, depending on the region.

As of 2010, SCCA has approved the L15A (i-VTEC) to be used for Formula F, replacing the Ford Kent engine.[1]

L-series[edit]

L12A i-DSI[edit]

Stock L12A i-DSI engine
  • Available exclusively in the European domestic market Jazz (known as Fit in certain markets) and available with only a 5-speed manual transmission.
    • Displacement: 1,246 cc (76.0 cu in)
    • Bore x Stroke: 73.0 mm × 74.4 mm (2.87 in × 2.93 in)
    • Compression Ratio: 10.8:1
    • Horsepower: 57 kW (77 PS; 76 hp) @ 5700 rpm
    • Torque: 110 N·m (81 lb·ft) @ 2800 rpm
    • Variations: L12A1

L12B i-VTEC[edit]

    • SOHC 16 valve i-VTEC
    • Displacement: 1,198 cc
    • Bore x Stroke: 73.0 mm (2.9 in) × 71.58 mm
    • Compression Ration: 10.2:1
    • Horsepower: 66 kW (90 PS; 89 hp) / 6,200 rpm
    • Torque: 114 N·m (84 lb·ft) / 4,900 rpm
    • CO2 emission: 125g/km
    • RPMLock: 6500 rpm
    • SpeedLock: 145 km/h
  • Honda Jazz (Germany / India) Honda Brio (Thailand / India / Indonesia)

L13A i-DSI[edit]

L13A i-DSI
  • Sold as a 1.3 in the Japanese Fit and only available with the standard CVT. European version marketed as a 1.4 for the Jazz and City, and available with either 5-speed manual or CVT with 7-speed mode. Use in Australia Jazz GLi (base model) with 5-speed manual or standard CVT. Brazil version marketed as 1.4, 5 sp or CVT . European Civic 1.4 i-DSI has a standard 6-speed manual with an available 6-speed automated manual I-SHIFT transmission.
  • For 7gen Civic, City, Fit & Jazz
    • Displacement: 1,339 cc (81.7 cu in)
    • Bore x Stroke: 73.0 mm × 80.0 mm (2.87 in × 3.15 in)
    • Compression Ratio: 10.8:1
    • Horsepower: 63 kW (86 PS; 84 hp) @ 5700 rpm
    • Torque: 119 N·m (88 lb·ft) @ 2800 rpm
    • Variations: L13A1 (Fit/Jazz), L13A7 (European market Civic), L13A8 (European market City)
  • For 8gen Civic
    • Displacement: 1,339 cc (81.7 cu in)
    • Bore x Stroke: 73.0 mm × 80.0 mm (2.87 in × 3.15 in)
    • Horsepower: 90 kW (122 PS; 121 hp)
    • Torque: 130 N·m (96 lb·ft)
    • CO2 emission: 109g/km (for the Honda Civic Hybrid)

L13B (i-VTEC)[edit]

    • SOHC 16 valve i-VTEC
    • Displacement: 1,496 cc
    • Bore x Stroke: 73.0 mm × 78.7 mm (2.87 × 3.10 in)
    • Compression: 13.5 : 1
    • Horsepower: 73 kW (99 PS; 98 hp) / 6,000 rpm
    • Torque: 119 N·m (88 lb·ft) / 5,000 rpm (GK3 Fit)
  • Honda Fit (Japan series GE3 / 4)

L13Z1 i-VTEC[edit]

L13Z1 i-VTEC in Fifth Gen Honda City Pakistan

L15A2 i-DSI[edit]

It debuted in Mobilio in December 2001.[2]

  • Available in the Fit Aria, Mobilio, and Partner in Japan. Offered in the Fit/Jazz and City in certain countries.
    • Displacement: 1,496 cc (91.3 cu in)
    • Bore x Stroke: 73.0 mm × 89.4 mm (2.87 in × 3.52 in)
    • Compression Ratio: 10.8:1
    • Horsepower: 66 kW (90 PS; 89 hp) @ 5500 rpm
    • Torque: 131 N·m (97 lb·ft) @ 2700 rpm
    • unleaded gasoline only
    • Source http://www.honda.co.jp/auto-archive/fit-aria/2005/grade-data/

L15A4 i-DSI[edit]

  • Available in the Honda Jazz in the Completely Knock Down (CKD) of the Indonesian and Thai version.
    • Displacement: 1,496 cc (91.3 cu in)
    • Bore x Stroke: 73.0 mm × 89.4 mm (2.87 in × 3.52 in)
    • Compression Ratio: 10.4:1
    • Horsepower: 65 kW (88 PS; 87 hp) @ 5500 rpm
    • Torque: 128 N·m (94 lb·ft) @ 2700 rpm
    • This version did not have an Exhaust Gas Recirculator (EGR) and lambda sensors on the calatytic conveter
    • this version can use a RON 88 unleaded gasoline

L15A1 VTEC[edit]

Stock L15A1-VTEC engine

It debuted in JDM Fit and Mobilio Spike in September 2002.[3][4]

  • Available in the Fit, Fit Aria, Airwave, Mobilio, and Mobilio Spike in Japan. Sold throughout the world with 5-speed manual or CVT options in the Fit/Jazz and City. Canadian and US Fit models will have a 5-speed automatic instead of the CVT.
    • Displacement: 1,496 cc (91.3 cu in)
    • Bore x Stroke: 73.0 mm × 89.4 mm (2.87 in × 3.52 in)
    • Compression Ratio: 10.4:1
    • Horsepower: 81 kW (110 PS; 109 hp) @ 5800 rpm
    • Torque: 143 N·m (105 lb·ft) @ 4800 rpm
    • Rod Length :149 mm
    • Rod/Stroke: 49 mm

L15A7 (i-VTEC)[edit]

L15B EARTH DREAMS (i-VTEC)[edit]

    • DOHC 16 valve i-VTEC
    • Displacement: 1,496 cc
    • Bore x Stroke: 73.0 mm × 89.4 mm (2.87 × 3.52 in)
    • Compression: 10.4 : 1
    • Horsepower: 97 kW (132 PS; 130 hp) / 6,600 rpm
    • Torque: 155 N·m (114 lb·ft) / 4,600 rpm (GK5 Pit)
  • Honda Fit (Japan series GE5 / 6)

L15Z1 i-VTEC[edit]

It debuted in Honda Mobilio 2013


L15Z5 i-VTEC[edit]

It debuted in Honda Jazz GK5 2014

LDA (i-DSI + pause-cylinder i-VTEC)[edit]

    • SOHC 8 valve cylinder i-DSI + pause i-VTEC
    • Displacement: 1,339 cc
    • Bore x Stroke: 73.0 mm (2.9 in) × 80.0 mm
    • Horsepower: 65 kW (88 PS; 87 hp) / 5,800 rpm
    • Torque: 121 N·m (89 lb·ft) / 4,500 rpm
  • Honda Insight (ZE2) sedan

LDA (i-DSI +3 stage i-VTEC)[edit]

    • SOHC 8 valve i-DSI +3 stage i-VTEC
    • Displacement: 1,339 cc
    • Bore x Stroke: 73.0 mm (2.9 in) × 80.0 mm
    • Horsepower: 70 kW (95 PS; 94 hp) / 6,000 rpm
    • Torque: 123 N·m (91 lb·ft) / 4,600 rpm
  • Honda Civic Hybrid (FD3)

LEA[edit]

    • SOHC 16 valve i-VTEC
    • Displacement: 1,496 cc
    • Bore x Stroke: 73.0 mm (2.9 in) × 89.4 mm
    • Horsepower: 84 kW (114 PS; 113 hp) / 6,000 rpm
    • Torque: 145 N·m (107 lb·ft) / 4,800 rpm
  • Honda CR-Z (ZF1/ZF2)

References[edit]

  1. ^ http://www.autoblog.com/2009/11/05/scca-approves-honda-fit-based-engine-for-formula-f/ Ford Kent engine being replaced by Honda Fit based engine by SCCA
  2. ^ "Honda Releases the new Mobilio --- A New Style of Compact Minivan" (Press release). Honda Motor. 2001-12-21. 
  3. ^ "Honda Adds a 1.5L Model to the Popular "Fit" Small Car Line-up" (Press release). Honda Motor. 2002-09-12. 
  4. ^ "Honda Releases the "Mobilio Spike" --- A New 1.5L Compact Multi-wagon" (Press release). Honda Motor. 2002-09-18. 
This article incorporates information from the equivalent article on the Japanese Wikipedia.

External links[edit]