2012年11月5日 · Generally the VTEC point will be 5500-5700 rpm on a stock engine, 4500-4800 rpm with intake & exhaust, 3000-3200 rpm for supercharged applications. Aftermarket cams generally require a high VTEC point.

2024年5月1日 · Discover when VTEC kicks in and at what RPM, including i-VTEC and VTEC in K24 engines. Learn how VTEC works and how it enhances your driving experience. Step into the thrilling world of VTEC and its unmatched performance.

2010年1月5日 · The VTEC system is a simple method of endowing the engine with multiple camshaft profiles optimized for low and high RPM operations. Instead of one cam lobe actuating each valve, there are two: one optimized for low-RPM stability & fuel efficiency; the other designed to maximize high-RPM power output.

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.

2015年12月31日 · Turbo setups are ok to go much lower (more low RPM power). Reason being, the VTEC cam lobes are made for high power operation, just like regular lobes are made for smooth running at low RPM. So VTEC at 3k can actually give you less power from 3k-5k than just running like normal.

VTEC typically kicks in at around 4000 – 5,500 RPM, which can vary depending on the vehicle. When VTEC is engaged, the engine valves open wider and stay open longer, which allows more air and fuel to enter the combustion chamber.

2023年7月22日 · The VTEC system is designed to kick in once the engine has reached a certain rpm (revolutions per minute), usually around 4,500 rpm. This is when the engine is able to generate maximum power. The timing and lift are adjusted to provide the most efficient combustion and to reduce emissions.

2007年7月23日 · i-VTEC doesn't kick in. VTEC engages as 5800RPM, but the "i" portion consists of continuously variable valve timing on the intake camshaft and is working the second you start the car. It is always on and working, adjusting valve timing to make the motor as efficient as possible for your driving techniques/habits.

When the engine RPM reaches a predetermined threshold, known as the VTEC kick-in point, the system will activate and begin modifying the valve timing and lift to provide increased engine performance. This allows for improved fuel economy, better acceleration, and higher top speeds.

2024年10月4日 · with the Honda ECU the VTEC cross over point is MAP dependent. At low MAP, low loads, it changes at a higher rpm than at full load. The cross-over points have to be determined on a dyno or through the butt dyno.