“Wards Auto World,” a leading U.S. Auto magazine, released the results of its 2017 top 10 engine of the year.
Volkswagen group, including the audi and porsche, all brands of power system in the last year because the public’s diesel engine emissions was all disqualified cheating, and still is not eligible to participate in the competition this year.
The American people’s spending habits are changing, too, thanks to the absence of a diesel engine and a V8 engine this year.
The Wards Auto World magazine professional editor team in each annual “top ten” engine, the strict selection standard covers engine noise, vibration and comfort (harshness (NVH)), fuel efficiency and technology innovation comparative data.
The top ten best engine must be equipped with the production models and models the price also slowly up to no more than $61000, these vehicles must also be on sale in North America, but because it is the popularity and authority in the world, published the results of this also received extensive attention of the overseas media.
BMW 3.0 liter inline 6 cylinder turbo gasoline engine.
The code for B58 six-cylinder engine in the ward awards last year, but last year’s award is the Austrian production, production went back to Germany this year, maximum power from 320 horsepower to 340 horsepower, torque is raised to 500 cows, m.
As long as the BMW power system a little bit understanding of people from the code name could decipher the it is the product of the BMW engine modular strategy, is roughly two B38 engines together, namely the inline six-cylinder turbocharged petrol engine.
The engine USES a larger double vortex turbocharger, which has a higher compression ratio than the N55 engine.
The BMW 340 I carry the award-winning engine last year, this year, the corresponding models are smaller, lighter more violent M240i, the vehicle to throttle response is very positive, reached – kind of airtight response and balance.
In addition to power, the new technology is also the highlight of B58 engine.
The water-cooled chiller in the intake chamber can effectively reduce the inlet temperature and reduce the power loss of the engine at high temperature.
Through the integrated design, the engine can within 36 hours will most retained the original heat engine, the car in the next boot can help ternary catalytic as soon as possible into the work state, reduce the discharge of pollutants, it is particularly useful in cold region.
Gm 1.5 liter inline 4 cylinder direct injection gasoline engine + motor.
The competition of the mixed group was also very fierce, and finally the second generation of volanda was selected for the third time.
Code-named L3A self-priming engine under gm SGE small displacement engine family, composed of saic and opel cooperative r&d, carrying in cylinder direct injection and variable valve timing and integrated technology, such as exhaust manifold than those of the first generation of models that engine have made remarkable progress.
Second, the battery capacity is larger, and the entire battery and motor weight is reduced by 9.8 kilograms.
In terms of pure electric range, the new model has risen from 61 kilometers to 85 kilometers in the first generation, which means that the daily commute is less likely to be driven by gasoline engines.
The power performance of the new volt has also been greatly improved, and the powerful torque output of the motor as high as 407 nm is impeccable.
Also makes the gm of the power system, it is equipped with the system of the second generation of volt naked price less than $34000, to buy the car still can continue to enjoy the federal government’s $7500 tax cut
Fiat Chrysler 3.6 liter V6 direct gasoline engine + motor.
Chrysler Paclifica which is a new generation of a minivan, its main sales model is equipped with a 3.6 -liter V6 petrol engine version, but the plug-in electric hybrid version is also sold in North America, because the car can get us government subsidies of $7500.
The 3.6 litre gasoline engine used in hybrid models USES the atkinson cycle, which is more efficient.
Hybrid system with the motor combination maximum power of 220 horsepower V6 petrol engine, two electric motors of the maximum power of 86 horsepower and 116 horsepower respectively, by the capacity of 16 kilowatt-hour battery pack, the entire petrol-electric hybrid system comprehensive maximum power of 260 horsepower.
If the 240 volt power supply is used, it can be fully charged within 2 hours, with a pure electric range of 53 kilometers.
Ford 2.3 – liter inline 4 – cylinder turbocharged direct gasoline engine.
This year, there were many inline 4 cylinder turbocharged petrol engine reached the last stage of the selection, ford’s 2.3 l model with strong power output, and eventually pick up its focus RS has a very affordable price, wins the favor of all the judges.
Niang gun edition mustang on the maximum power of 315 horsepower 2.3 l engine, ford will specially for fox RS were raised the maximum power of 350 – horsepower engine, the red line area speed can reach 6800 RPM.
In order to cope with the higher speed, ford has optimized the cylinder head and gasket and other parts, and the intake and exhaust system has been upgraded accordingly, and the efficiency of the cooler has been improved.
The four-cylinder engine, which is so violent, goes with a six-speed manual transmission, which costs $37,000 in the United States, and no judge can refuse to vote for the engine.
Honda 2.0 litre straight 4 cylinder direct gasoline engine + motor.
Guangzhou Honda accord hybrid type on the set of hybrid system is the prize this time, the award-winning models is also sold in the United States the north American version of the accord, both with the gasoline engine and electric motor is almost exactly the same.
Atlas whole sen cycle 2.0 -liter gasoline engine does not output strong power, but to match the motor has a maximum power of 133 kilowatts, and a startup can output up to 315 cows, peak torque, to match the system accord during acceleration performance are driven by a 3.5 -liter six-cylinder engine.
The power is strong, but it has a very low fuel consumption. It is less than 4.8 litres to stop and stop in the city, and the fuel consumption is only 5 litres on the high speed, which is great!
Modern 1.4 liter inline 4 cylinder turbocharged direct injection gasoline engine.
The American version of elantra is called the lead in China, and the power system is basically the same, which is the “golden power combination” of 1.4T+7DCT.
The code for Kappa low-emission engine adopted today the mainstream of the turbocharged and direct injection technology, the research and development of the modern European engineering center, than the previous generation 1.4 -liter Gamma 14 kg lighter, modern redesigned the single vortex tube supercharger and exhaust manifold with integrated together, in order to improve the efficiency of turbine operation, positioned at the nozzle inside the cylinder is improved fuel efficiency, enhance the power.
Maximum power of 128 horsepower and 212 cattle, the maximum torque don’t look conspicuous, Volkswagen has eliminated EA111 1.4 T engine is better than it, but modern claim that Kappa engine thermal efficiency is higher, and the judges actual driving down also felt that the collocation of the engine and dual clutch transmission is great, especially fuel consumption is very low.
Another reason why the engine won the prize is that its modern Elantra Eco, which sells for less than $22,000 in the United States, is cheap.
Nissan 3.0 liter V6 turbocharged direct gasoline engine.
Nissan’s V0 series engine is a regular on the ward’s top 10 list, winning the title of the 14th ward 10 engine from 1995 to 2008, and winning several awards on and off.
Today, the 3.0-tv-6 twin turbo engine on the infiniti 050 makes all the judges subject to the maximum power of 400 horsepower and the peak torque of 475 nm.
The new engine, developed independently by Infiniti, was not manufactured in the United States but assembled in the Japanese rock city factory.
The engine weighs only 194.8 kilograms, 14.1 kg lighter than VQ37.
Custom-made turbine sensors and vastly improved turbine blades are unique, which adds up to a maximum of 10 per cent.
In addition, the valve timing system is equipped with a small motor to reduce the throttle delay.
The dual – effect cooling allows the engine to inhale more low – temperature air and reduce the occurrence of detonation.
Mazda 2.5 liter inline 4 cylinder turbo gasoline engine.
CX – 9 americans have been felt like this type of SUV division should be equipped with V6 engine, because at the same level of the highlander in North America has always been with a 3.5 -liter engine, so when the judges driving with over 420 cattle, torque after 4 cylinder turbo CX – 9 is completely moved.
This engine is the basis of Mazda’s 2.5 -liter naturally aspirated chi blue sky gasoline engine, Mazda using dynamic pressure turbine technology to improve exhaust airflow speed, reduce the proportion of residual waste gas, eventually to set the compression ratio is 10.5:1, it is also rare in the turbocharged petrol engine.
It also USES a butterfly valve exhaust system to minimize turbine lag.
To cope with dynamic pressure turbine technology, cylinder head adopt the mainstream of integrated exhaust manifold design, reduce the engine exhaust temperature at high load, also to a certain extent, to reduce the loss of the pump gas.
Mercedes-benz 2.0 liter inline 4 cylinder turbo gasoline engine.
Even in the United States, where large engines are used, turbocharged four-cylinder engines are becoming mainstream engines.
There are more than a dozen such engines in this year’s candidate models, and half of the last 10 winners are straight 4-cylinder turbocharged direct-injection gasoline engines.
Mercedes C300 coupe on the M274 engine can stand out from the crowd because it USES a lot of new design, such as the third generation BlueDirect direct injection (gdi) technology can be up to five times in one stroke, fuel injection, piezoelectric spark plug can be four times within 1 millisecond spark release, and optimization of eddy current in cylinder design, bring the best combustion efficiency of the engine.
It is important that M274 engine power is enough, maximum power of 241 horsepower, peak torque of 370 cattle, meters, although is not the most top marks in the engine at the same level, but it relied on 1300 r/min can be fully moved all the judges the output torque.
The reason for this remarkable dynamic performance is that the low inertia turbine is used to solve the problem of turbine retarding through the built-in small, low inertia rotor.
Volvo 2.0 liter inline 4 cylinder compound gasoline engine.
Volvo’s 2.0 -liter inline 4 cylinder composite turbocharged gasoline engine also won the ward award last year, this year is also the award-winning Volvo is the cause of the engine further strengthened the, maximum power to 362 HP, which means power reached the terrible 184 horsepower.
This allows the V60 Polestar equipped with the engine to accelerate from stationary to 100km/h in less than five seconds.
This engine is still belongs to the Volvo Drive – E modular series engine, on the geometric structure with Volvo, other 4 cylinder engine, the engine connecting rod, camshaft, air intake system and the design of the oil pump is adopted to strengthen, they also upgrade again double jacket cooling system to cope with two sets of pressurization system to produce the terrible heat.
The adoption of the turbo + mechanical means of double pressure, forced to made a lot of fresh air in the cylinder, the output of the engine is therefore able to significantly increase, and the advantages of mechanical pressurization booster is that it almost no delay.
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