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Turbocharged L15B/L15C engines that feature VTC system have Variable Timing Control (VTC) on both the intake and exhaust side. [ 29 ] [ 30 ] It was advertised and badged as VTEC Turbo in Australia and some Asian markets, despite not featuring an actual Variable Valve Lift system like conventional VTEC engines.
A Honda K24A Engine with i-VTEC. VTEC (described as Variable Valve Timing & Lift Electronic Control, but stands for Valve Timing Electronically Controlled) is a system developed by Honda to improve the volumetric efficiency of a four-stroke internal combustion engine, resulting in higher performance at high RPM, and lower fuel consumption at low RPM.
91–96 H22A Prelude Si VTEC (Japan) 94–97 H22A Accord SiR (Japan) 97–01 H22A Prelude SiR, SiR S-spec, Type S (Japan) 00–02 H22A Accord Euro R (Europe) 93–96 H22A1 Prelude VTEC (America) 93–96 H20A4 Modified Prelude VTEC (America) 97–98 H22A1 Prelude VTiR (Australia) 93–96 H22A2 Prelude 2.2i VTEC (Europe) 1996 H22A3 Prelude VTEC (KU)
Two engines (1.3 i-DSI and 1.5 VTEC) were offered, each with a number of trim lines ranging from the basic "Y" to the sporty "S". The 1.3 L i-DSI was available with only the regular CVT automatic. The 1.5 L VTEC model with CVT-7 was added in September 2002. [8] A five-speed manual was added in June 2004 for FWD model with the larger engine.
Honda J35A 3.5L V6 SOHC i-VTEC Variable Cylinder Management(VCM) Engine on 2008 Honda Inspire. Variable Cylinder Management (VCM) is Honda's term for its variable displacement technology, which saves fuel by using the i-VTEC system to disable one bank of cylinders during specific driving conditions—for example, highway driving.
Two engine choices are offered, the 1.8-litre naturally aspirated with i-VTEC technology carried over from the previous generation model produces 141 hp (105 kW) and 174 N⋅m (128 lb⋅ft) of torque (E trim) and the new 1.5-litre VTEC Turbo produces 173 hp (129 kW) and 220 N⋅m (160 lb⋅ft) of torque, equipped with turbocharger (RS trim).
Initially, it came in only two trim levels: i-VTEC and i-VTEC S. Later on, a third trim level, the i-VTEC MT, was launched on 1 April 2018. i-VTEC and i-VTEC S came with CVT while i-VTEC MT came with 6-speed manual transmission. All three trim levels came with the 1.5-litre L15Z1 SOHC i-VTEC I4 petrol engine. [16] [17] [18]
1981: General Motors introduced its "Computer Command Control" system on all US passenger vehicles for model year 1981. Included in this system is a proprietary 5-pin ALDL that interfaces with the Engine Control Module (ECM) to initiate a diagnostic request and provide a serial data stream.