Sentences with phrase «volumetric efficiency of the engine»

The short version is that by electronically changing exactly when the intake and exhaust valves open and close, you can increase the volumetric efficiency of the engine across a large RPM range.

«You aimed to increase the volumetric efficiency of the engine,» explains Brittain, «by increasing the revs by allowing the engine to breath.»

Unfortunately, the frequency, magnitude and timing of these pulses varies with speed, so the volumetric efficiency of an engine with fixed valve timing will only be optimum at one speed.

The goal of performance exhaust headers is mainly to decrease flow resistance (back pressure), and to increase the volumetric efficiency of an engine, resulting in a gain in power output.

Not exact matches

In order to increase the Volumetric Efficiency (VE) of your engine «pump», everything must be balanced to add as much fuel that is needed with any added air.

Performing a volumetric efficiency test can reveal the accuracy of a vehicle's Mass Airflow Sensor (MAF) as well as potential issues with the engine and can be the key to successfully diagnosing and fixing a vehicle.

VTEC (Variable Valve Timing & Lift Electronic Control) is a system developed by Honda which was said 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.

As a result, it affords precise control of the intake - valve events — beginning and end — which reduces engine - pumping losses, increases volumetric efficiency and cuts carbon - dioxide emissions.

In order to achieve the optimum volumetric efficiency in the lower portion of the engine's operating range, rocker arms are programmed to follow cam lobes that provide low lift and reduced duration (shorter time open with less valve lift).

Variable operation of the engine's intake valves are controlled for optimal volumetric efficiency, air / fuel mixing, burn rate and exhaust flow.

These unprecedented results are the product of meticulous honing of the engine's volumetric, mechanical and combustion efficiency.

To boost volumetric efficiency, the V12 employs continuously variable - length intakes - a mainstay in F1 engine technology until banned by rule changes — which optimise performance as a function of engine speed.