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They are similar to the D16Y4, D16A8, D16Z6, D16A1, D16A3, D16A6, D16A9 and D16Z5 engines. There are both SOHC and DOHC ZC engines. The non-VTEC SOHC ZC is similar to the D16A6 ('91–'96) and D16Y4 ('96–2000) engine, but with more aggressive cam timing. The SOHC VTEC ZC is similar to the D16Z6 ('91–'96).
Three-stage VTEC is a multi-stage implementation of Honda's VTEC and VTEC-E (colloquially known as dual VTEC) technology, implemented in some of the company's D series engines from 1995 to the present day, allowing the engine to achieve both fuel efficiency and power. VTEC-E (for "Efficiency") is a form of VTEC that closes off one intake valve ...
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)
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.
In 1989, Honda released the VTEC system. [13] While the earlier Nissan NVCS alters the phasing of the camshaft, VTEC switches to a separate cam profile at high engine speeds to improve peak power. The first VTEC engine Honda produced was the B16A which was installed in the Integra, CRX, and Civic hatchback available in Japan and Europe ...
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. The second version of VCM (VCM-2) took this a step further, allowing the engine to go from 6 cylinders, down ...
It is fuel injected, has an aluminum-alloy cylinder block and cylinder head, is a SOHC 16-valve design (four valves per cylinder) and utilizes Honda's i-VTEC system. The R series engine has a compression ratio of 10.5:1, features a "drive by wire" throttle system which is computer controlled to reduce pumping losses and create a smooth torque ...
The J30A4 pushed output to 242 hp (180 kW) and 212 lb⋅ft (287 N⋅m) using a three-way VTEC system, a higher (10.0:1) compression ratio and a novel exhaust manifold cast as one piece with the cylinder head. It weighs nearly 20 lb (9.1 kg) less and is an inch shorter than J30A1.