In engines such as the K20A2 found in the Acura RSX Type-S, the VTEC system operates on both the intake and exhaust valves, allowing both to benefit from multiple cam profiles. A modified K20C engine is used in motorsport, as the Sports Car Club of America Formula 3 and 4 series that run in North America both use a K20C engine, with the Formula ...

The K20A is a high-performance JDM engine, which was in production from 2001 to 2011. It has balancing shafts, high compression pistons (11.5:1), reinforced connecting rods, a lightened flywheel, dual valve springs in the valvetrain, 310 cc fuel injectors, a 4-2-1 exhaust manifold (header), and a PRC intake manifold (or RBC for Euro R).

Honda独創のVTECは、新たに吸気バルブタイミングの位相をエンジン負荷に応じて連続的に制御するVTC（Variable Timing Control）を組み合わせた「i-VTEC」へと進化。

2018年4月29日 · In the case of the K20, the A2 variants use VTC and VTEC in one system (i-VTEC), while the A3 variants use VTC and VTEC-E. The A2’s version produces much more power, and the A3 version offers better efficiency. Strangely enough, they’re both labeled as “i-VTEC” even though they operate differently.

2004年4月5日 · VTEC - Variable valve Timing and lift Electronic Control. At low RPM, a VTEC engine uses a normal cam profile to retain a smooth idle, good fuel economy, and good low-end power delivery. The VTEC mechanism engages a high-lift, long-duration "race" cam profile at a set RPM value (i.e., ~5500RPM on the B16A) to increase high-end power delivery.

2023年11月13日 · The engine’s i-VTEC system—Honda’s intelligent Variable Valve Timing and Lift Electronic Control—optimizes performance at various RPMs, improving both fuel efficiency and power output. Here are the general specifications for the Honda K20 engine:

2022年6月18日 · 初代ストリームが搭載していたk20a（2000年）。 最高出力116kW/6500rpm、最大トルク190Nm/4000rpmで登場。 可変長吸気マニフォールド、LNT触媒などを備え、出力と低燃費性能を両立していた。

2024年10月4日 · For a wide engine setups (86x86 and 87x99) it's about 3500-5500 rpm. But it's no question of where you want it, its a question where your engine need it. As an engine designer one can highly affect this by giving the engine what it needs by specifying parts accordingly.

2022年5月28日 · Where other K20 variants, like the K20A3, use a VTEC-E valvetrain that is seen less favorably, the K20A2 employs a true DOHC i-VTEC system that is known and loved in the Honda community. In this article, we’ll cover the K20A2 in detail, discussing its specifications, applications, and mod potential.

2007年3月13日 · In short, most people will want to have VTEC engage at 2200rpm with a high map. This will keep VTEC from engaging at a low RPM unless you are giving the car heavy throttle. So just cruising around town, you can save some gas by staying out of VTEC.