What is Honda VTEC system?
The VTEC (Variable Valve Timing & Lift Electronic Control) system uses separate camshaft profiles for low and high-end performance, and the engine computer selects between profiles. The VTEC system essentially combines low-RPM fuel efficiency and stability with high-RPM performance.
Which engine has VTEC?
This system is used in the Accord, Civic, Civic Si and Type R, and the CR-V. The V-6 engines in the Odyssey, Passport, Pilot and Ridgeline have variable lift and timing for the intake valves, and VTEC works with cylinder deactivation to operate in a three-cylinder mode.
What is the purpose of the VTEC system?
In terms of operation, the VTEC system most commonly uses two camshaft lobe profiles per set of valves. One profile is designed to improve power and fuel economy at low engine speeds, while the other profile is designed to increase airflow, and hence engine power at engine speeds above about 4000 RPM.
What does VTEC stand for in Honda engine?
If you don’t, here’s an explainer. VTEC is a type of variable valve-timing system developed and used by Honda. It stands for V ariable Valve T iming & Lift E lectronic C ontrol. Like most other variable-valve timing systems, VTEC varies oil pressure to shift between different cam profiles.
How does the Honda VTEC engine timing system work?
A third option is to change the cam timing profile, of which Honda VTEC was the first successful commercial design for altering the profile in real-time. The VTEC system provides the engine with valve timing optimized for both low and high RPM operations.
What kind of VTEC system does the are series engine use?
The i-VTEC system in the R-Series engine uses a modified SOHC VTEC system consisting of one small and two large lobes. The large lobes operate the intake valves directly while the small lobe is engaged during VTEC.
How does VTEC really work?
VTEC (which stands for Variable Valve Timing and Lift Electronic Control) is an electronic and mechanical system in some Honda engines that allows the engine to effectively have multiple camshafts. As the engine moves into different rpm ranges, the engine’s computer can activate alternate lobes on the camshaft and change the cam’s timing.
What does VTEC stand for?
VTEC is an acronym for Variable valve Timing and lift Electronic Control. It is a mechanism for optimizing air/fuel mixture flow through the engine. An internal combustion engine converts the chemical energy stored in fuel into thermal energy.
How fast is VTEC?
A time machine from the 1990s, for many Honda fans the Si VTEC was the apex of the Prelude line. Reports pegged the car’s zero to 60 time at 6.6 seconds, along with a top overall speed of 148 miles per hour.
What cars have VTEC?
Although the VTEC was originally designed by Honda, similar systems — not called “VTEC” — are used in many different types of Foreign cars including Toyota, Porsche, BMW and Nissan. If you are in the market for either a new or a used car, consider purchasing a vehicle with a VTEC-type engine.