VTEC (Variable Valve Timing & Lift Electronic Control) 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. The VTEC system uses two (or occasionally three) camshaft profiles and hydraulically selects between profiles. It was invented by Honda engineer Ikuo Kajitani. It is distinctly different from standard VVT (variable valve timing) systems which change only the valve timings and do not change the camshaft profile or valve lift in any way.

TEC（ブイテック、Variable valve Timing and lift Electronic Control system）は、本田技研工業が開発した4サイクルエンジン用の可変バルブタイミング・リフト機構および、その名称である。
Source: Wikipedia
Thumbnail: @hugosilva

本田翼 本田圭佑 本田望結 本田真凛 本田美奈子本田仁美 本棚紹介
For Civics the EX, EX-L, HX (6th generation), Si, Si-R, VTi VTiR and Civic Type R (CTR) are VTEC.
For Integras: Integra LS/GS/RS/SE = NOT VTEC, unless modified after production (hence someone doing a LS/VTEC conversion), and the Integra GS-R and Integra Type R (ITR for short) are VTEC.
RSX = all models are VTEC actually i-VTEC (intelligent VTEC)

honda civic honda accord honda civic type r honda grom honda prelude

#vtec #honda #jdm