Sentences with phrase «air at high engine speed»

The engine «struggling» to intake air at high engine speed is measured as «volumetric efficiency».

Not exact matches

Such transmission tweaks include reducing the engine's time spent operating at a very high rotational speed to lower mechanical friction, or reducing time spent with an open throttle to lower air friction in the cars cylinders.

The horsepower rating is actually a bit misleading: at extremely high speeds, Ferrari acknowledges that the ram - air effect contributes about 5 hp to the engine's 562 - hp total output.

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The purpose is to increase performance at high speed by a «ram air» effect, delivering high pressure air to the engine.

With its two mono - scroll turbochargers, charge air cooler, High Precision Injection, VALVETRONIC variable valve timing and Double - VANOS fully variable camshaft timing, the six - cylinder in - line engine and takes a clear and consistent aim at the higher echelons of performance, but is equally committed to developing significant torque from low engine speeds and achieving high levels of efficiency (fuel consumption combined: 8.4 l / 100 km [33.6 mpg imp] *; CO2 emissions combined: 197 g / kmHigh Precision Injection, VALVETRONIC variable valve timing and Double - VANOS fully variable camshaft timing, the six - cylinder in - line engine and takes a clear and consistent aim at the higher echelons of performance, but is equally committed to developing significant torque from low engine speeds and achieving high levels of efficiency (fuel consumption combined: 8.4 l / 100 km [33.6 mpg imp] *; CO2 emissions combined: 197 g / kmhigh levels of efficiency (fuel consumption combined: 8.4 l / 100 km [33.6 mpg imp] *; CO2 emissions combined: 197 g / km *).

At higher engine speeds, it doesn't matter as much because you're pulling in lots of air anyway.

The exterior of the 2015 Saleen S302 Mustang includes custom tailored front and rear fascias, a grille and lower air dam that provide the supercharged engine with sufficient ambient air, a functional Saleen heat extractor hood that allows the engine to breathe during the hottest competition, a functional rear diffuser, and a high - downforce wing that offers premium aerodynamic performance at high speeds.

Noise: Some engine growl at high rpm, some suspension thumping on bumps, a little air racket at speed.

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The front grille serves two purposes: It announces in a big way that this is the hybrid and it also conceals a movable slat that opens only when the car needs extra cooling air: open at low speed and higher engine coolant temperatures, closed at high speeds and normal engine temps.

This allows optimum fuel - air mixing both at low engine speeds and loads (port injection) and at high engine speeds and loads (direct injection).

Front driving lamps slide back to create openings for better air intake when the gasoline engine is being used and a sliding U-shaped deck - lid extends from the rear of the vehicle at higher speeds for improved coefficient of drag.

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Some of the key principles of Eco-Driving are: • Maintain engine speeds between 1200 — 3000 rotations per minute (RPM); • Change to higher gears between 2000 — 2500 RPM, and drive in top gears at lower speeds — the so - called «50 in 4th gear» driving style; • Try to anticipate more to avoid strong accelerations, decelerations, overtaking or aggressive driving; • Driving at speed limits and avoiding high speeds; • Add 10 % to standard tyre pressure; • Avoid using the air condition, or set at temperatures above 21Â °C; • Use your bike for short trips — starting your car when it is «cold» uses 300 % more fuel.»