Sentences with phrase «engine at optimum»

By increasing the speed of a manual shift, Oerlikon Graziano has been able to reduce the torque interruption, keeping the engine at optimum efficiency for longer and reducing engine transients to save fuel.

The fact it «only» has six gears, in a sector that's quickly adopting transmissions with seven, eight and even nine forward ratios, means there's less of a chance of keeping the engines at their optimum cruising rev range.

Thanks to the closely stacked gear ratios, it should remain relatively straightforward to keep the engines at their optimum rev bands, and the gear changes themselves are fairly smooth and seamless.

Not exact matches

Additionally, we know more fuel is consumed when the engine isn't running at it's optimum speed for power production.

It will be offered with 16 - or 17 - inch wheels, and replaces the current Optima Hybrid's 2.4 - liter gas direct - injection engine with a 2.0 - liter gas - direct injection four with a high - voltage electric oil pump, rated 154 horsepower at 6,000 rpm and 139 pound - feet at 4,000 rpm.

Given two engines of similar weight, both operated at their respective optimum efficiency (i.e. maximum mechanical work done per unit of chemical enthalpy in the burnt fuel), you will end up with similar fuel consumption for either engine type.

In my dealings with exhaust companies it was always an elaborate process of pressure volume graphs, gas velocities, valve timings and component temperatures and pipe length, at an optimum engine RPM.

Note how I say «alternator at optimum» this speed is nearly never the best unloaded operating point of the engine, so your fuel consumption will be very much sub-optimal.

It is unlikely the car charging can actually supply 1.5 kW to the outside, since the alternators get designed for about -LRB--LCB- everything the car needs -RCB- + -LCB- what could possibly be added -RCB--RRB- * 1.3; so that usually leaves no more than 50 % of the actual alternator power, usually less, to be gotten from the car, while running at the engine speed at which the alternator is at optimum.

Select hybrid mode and it mixes use of the gas engine and electric motor for optimum efficiency and performance, while the PSM Sport mode allows a «significantly sportier» driving style and Sport + mode recharges the battery at a much higher rate.

To help with the explanation of the second component, Figure Two shows traces of in - cylinder pressure (black), port pressure at the intake valve (light blue) and port pressure at the exhaust valve (red), taken from a simulation of a high BMEP engine operating near the optimum tuning point for both intake and exhaust.

The 2011 Kia Optima Hybrid may be the brands first hybrid, but the driveline architecture is courtesy of the recently introduced Hyundai Sonata hybrid, which means it's a full hybrid and can be driven in electric - only mode, or gasoline engine mode, or any combination of the two at speeds up to 62 miles - per - hour.

SRC ensures that engine revs are always at the optimum level when the driver is changing gear, delivering perfect «heel and toe» changes every time.

Hence the presence of a track - specification cooling system, which ensures that the optimum temperature balance for the engine, turbochargers and transmission is maintained at all times.

By contrast, three of the Kia Optima models have a 2.4 L I - 4 engine that's rated at only 185 hp and 178 lb - ft of torque.

Optimum use of power and maximum protection for the engine at the same time are the result.

VTEC helps the engine to deliver optimum power and efficiency at all times.

Positioned behind you for optimum weight distribution and thrilling dynamics, the acclaimed M838T engine combines 3.8 litres and twin - turbocharging technology to produce an astonishing 650PS at 7250rpm, while 95 % of its 678Nm is spread from 3000 - 7000rpm.

It keeps the engine operating at optimum efficiency with a band rather than fixed gears.

The CVT keeps the engine operating at optimum efficiency with a band rather than fixed gears.

The No. 38 B.R.A.K.E.S. Optima turbo on display at SEMA was driven by Mark Wilkins throughout the 2014 season and utilizes the same 2.0 - liter turbocharged four - cylinder GDI engine found in the Kia Optima SX and SXL.

A sequential 6 - speed transmission directs engine power to the permanent all - wheel drive system, guaranteeing optimum power transmission at all times, while gear shifting is achieved using wheel - mounted paddles.

A vehicle's accessories, such as the air conditioner, power steering pump, water pump, or alternator, draw power from the engine and impact the vehicle's fuel efficiency when they are running at speeds that are above or below their optimum rpm.

At the first time Kia talked about releasing the Optima in Europe with four different engines (1.6 GDi with 140hp, 2.0 GDi...

This design concept and configuration — engine at the front, drive wheels at the rear — guarantees optimum traction, near - perfect weight distribution front - to - rear, excellent directional stability, and predictable handling.

Prospective Optima drivers will have three engine options at their disposal, including two that carry over from the previous generation.

To learn more about the engine options or to see the interior space for yourself, schedule a test drive of the 2018 Kia Optima at Schaumburg Kia in Schaumburg, IL.

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.

With 178 hp and 195 lb - ft of torque, the smallest engine should have plenty of power to get the Optima moving, though expect the usual DCT grabbiness at low speeds and on initial acceleration.

The two - mode transmission is the key to the whole system, which attempts to keep the engine running at the optimum rpm for low fuel consumption.

Enhanced Hybrid Performance Targeting a 10 percent increase in fuel economy, the Optima Hybrid replaces the previous generation's 2.4 - liter engine with an efficient and compact 2.0 - liter GDI four cylinder — estimated at 154 horsepower — coupled with a hybrid starter generator and tied to an upgraded, smooth - shifting six - speed transmission.

The Koreans didn't release any hard specs, but based on their estimates, the Optima equipped with 1.7 - liter diesel engine - currently rated at 134 horsepower - could generate up to 160 ponies with the T - Hybrid drivetrain.

At the 2015 edition of the New York International Auto Show, Kia is introducing a slightly longer, slightly wider Kia Optima with an all - new 1.6 - liter engine and seven speed dual clutch transmission.

«The positioning of the engine provides an optimum front - to - rear weight balance and allows the designers to push the wheels out to the car's corners for better interior space utilization,» Mark McNabb, vice president of Infiniti, said at a media preview of the car.

The engine automatically increases oil flow pressure as engine speeds or loads rise (and the compression ratio lowers), ensuring optimum running temperatures at all times.

Inspired by motor sport, at the push of a button it pre-conditions the engine and transmission for optimum responsiveness.

The sedan's body is now made of 50 percent ultra high - strength steel, up front 20 percent, helping torsional rigidity jump 50 percent, while three engine choices keep the 2016 Optima at the front of the sedan pack.

Admittedly, as the peak outputs are higher up in the rev range, you do need to work the engine a bit in order to extract the most from it, but the smoothness of the engine and linearity of its power delivery means this 3.6 - liter powerplant never feels stressed when you do so — plus, as we'll go into shortly, the transmission does do a good job at keeping the engine in the optimum power band.

For such an extremely powerful automobile, the most crucial task of the body shell design is aerodynamic efficiency: the optimum airflow for absolute stability at all speeds and, at the same time, optimum cooling for the engine.

Kia has revealed the new Optima in Euro spec ahead of a debut at the 2015 Frankfurt Motor Show, with new styling, more room and a single engine option.

Long Haul Bow Tie Vehicle: 2003 Chevy Silverado 2500HD 4X4 Owner: Shaughn «Shoggin» Reid Location: Drove 8,600 miles from Los Angeles to Pitman, New Jersey Chassis: Stock hydroformed GM frame rails Engine: LB7 Duramax turbo diesel, AFE air filter, Optima batteries, Edge Hot Juice programmer, So Cal Diesel tuning Drivetrain: Allison transmission, ATS torque convertor, ATS transmission pan, Amsoil transmission oil, polished aluminum rear driveshaft, 14 - bolt rear differential, Oasis cover, Amsoil gear oil Suspension: Front RCD 6 - inch lift, RCD lower control arm drop brackets and steering knuckles, fabricated chromoly upper control arms with uniballs and dual shock mounts, fabricated shock hoops, custom sway bar links, Deaver leaf springs in the rear, 5,000 - pound air bags, long shackles, Bilstien 7100 reservoir shocks, dual ProComp Explorer ES9000 shocks Steering: PSC power steering pump, 0.75 in.

We understand that mileage varies so we're keeping the EPA's 35 city and 40 highway mpg in mind for scoring, but seeing is believing, and at an observed 32 mpg for the Optima Hybrid, we didn't see much of an improvement over the Optima EX with the 2.4 - liter GDI engine.

Power for the 2012 Kia Optima Limited comes from the direct - injected 2.0 - liter 4 - cylinder engine rated at 274 bhp and 269 lb. - ft.

In contrast with the Sonata Sport 2.0 T's power - over-luxe approach, the Kia Optima EX trades the turbo engine for a kitchen - sink options package; it's not an apples - to - apples comparison, but it is an example of the kind of tradeoff buyers at the $ 30K price point face.

Each gear change takes place automatically and at the optimum engine speed.

This means that the optimum charge pressure can be built up at low engine revs.

This is achieved by providing reduced intake valve lift and duration at low engine speeds for good torque, with increased intake valve lift and duration at higher rpm for optimum power.

On R - Dynamic models, the vents are finished in satin chrome • The grille mesh features a 3D chamfering detail on its wide, flat hexagons motif to catch the light with Jaguar's biggest - ever Growler grille badge at the centre, concealing the Adaptive Cruise Control sensors • Round tailpipe finishers are neatly integrated into the rear valance, providing a visual reminder of the vehicle's performance, exhaust note and refinement, inspired by jet engine tailpipes • The large upper tailgate spoiler is a three - piece design that has been tuned for optimum airflow

The supercharger blades are set in optimum motion even at low engine speeds.

The combustion chamber's design produces greater turbulence and better gas combustion at low engine speeds, and also obtains optimum performance in the high engine - speed range thanks to improved cylinder filling.