Power under control Maserati engineers developed the mighty 3.8 - litre Twin Turbo V8 engine to accommodate the Q4 Intelligent All - Wheel Drive system, providing it with
a new crankcase design, specific crankshaft assembly, new oil pump and auxiliary belt and a different wiring layout.
Aside from the 67 hp and 14 lb - ft bump over the QP GTS, the Trofeo's heart wears
a new crankcase design, upgraded turbochargers, cylinder heads, oil pump, and auxiliary belt, among other things.
Not exact matches
Modified cam timing, more boost, a stiffer
crankcase, and a
new exhaust system help to hike power and torque over the SL55's already useful 493 hp and 516 lb - ft.
The
crankcase features different machining, the main bearings are a
new design, the forged pistons are stronger and feature a
new dome geometry, the exhaust manifolds boast diameters increased by 30 percent per cylinder, and the compression ratio decreases from 9.5:1 in the Turbo S to 9.0:1.
Peak power is now 490bhp (up 37bhp) while peak torque also increases to 372 lb ft, an increase of 14 lb ft.. These improvements have come from a
new design of piston crown, improved mechanical efficiency thanks to a reed valve in the
crankcase to evacuate oil and blow - by gasses, reduced backpressure from a redesigned 4 - into - 1 exhaust manifold and a reprogrammed ECU that exploits advances in the anti-knock properties of the latest petrol formulas.
The main difference between the old and
new engines is Audi's adoption of an aluminium
crankcase, itself the main contributor to a total engine weight reduction of 26 kg.
The
crankcase of the
new AMG 5.5 - litre V8 engine features a diecast all - aluminium construction.
Distinguishing features versus the M157 include the
new intake air ducting,
new cylinder heads, the modified valve drive, an adapted oil supply system and an optimised
crankcase.
Newer cars emission systems recycle heavy carbon and oil mist from the
crankcase directly into the intake and some bypass valves get clogged up similar to modern intake manifolds.
The
new engine also feels more eager across the final 2000rpm, where Preuninger says the added rigidity of the
crankcase and other stiffening measures made to the block come into play.
It features a number of
new developments, including friction - reducing plasma - based cylinder liners, a stiffer
crankcase, redesigned cam followers within the rocker bearings and a revised scavenging system for the dry sump that is claimed to reduce oil recirculation by more than 40 %.
The
new unit has an aluminium
crankcase and cylinder head, and the refinement that is likewise a hallmark of BMW six - cylinder in - line engines has been elevated to another level still thanks to
new, near - source acoustic shielding.
The four - cylinder engine of the
new BMW 118i, which has an all - aluminium
crankcase, has a maximum output of 125 kW at 4,800 rpm, and a maximum torque of 250 Nm between 1,500 and 4,500 rpm.
Two petrol engines with Twin Turbo technology and High Precision Injection - the 300 kW / 407 hp V8 in the top - of - the - range BMW 750i and the 240 kW / 326 hp straight - six in the
new BMW 740i - as well as a newly developed straight - six diesel with common - rail fuel injection, piezo - injectors and an aluminium
crankcase with maximum output of 180 kW / 245 hp in the
new BMW 730d are available right from the start upon the introduction of the car.
New domed rocker covers house a patent - pending integrated positive
crankcase ventilation system that enhances oil life, reduces oil consumption and reduces exhaust emissions.
The four - cylinder engine of the
new BMW 118i, which has an all - aluminium
crankcase, has a maximum output of 125 kW / 170 hp at 4,800 rpm, and a maximum torque of 250 Nm at between 1,500 and 4,500 rpm.
The
new powertrain is 26 kg (57 lb) lighter as well, thanks to an aluminum
crankcase.
The
crankcase on the
new power plant is made from an aluminum - silicon alloy and has an open - deck construction with steel cylinder liners.
With its aluminum
crankcase, the
new four - cylinder engine weighs just over 100 kilograms, despite its complex technology package.
Among the A45 AMG's engine developments is a
new twin - scroll turbocharger, spray - guided direct - injection with piezo injectors, an optimized aluminum
crankcase and crank assembly, forged aluminum pistons and a cooling system similar to that used on the flagship SLS AMG — Mercedes - Benz's signature gullwing coupe and roadster pairing.
Representing a brand -
new generation of straight - six turbodiesels, the 3.0 - liter in the 530d features an all - aluminium
crankcase, the enhanced turbocharger system with variable turbine geometry, and the latest generation of common - rail fuel injection.
The cylinder head with integrated air intake manifold and the
crankcase of the
new 1.5 - liter diesel are made of lightweight aluminium, while the four valves per cylinder are activated by dual overhead camshafts.
The famous AMG 5.4 litre V8 was adapted for the street and it has
new pistons, valve gear,
crankcase, cooling system, exhaust, supercharger, while the huge power of 582 HP is delivered to the rear wheels through a five speed automatic gearbox 5G - Tronic Speedshift.
Thanks to TwinPower Turbo technology, the
new supercharged 4 - cylinder petrol engine with all - aluminium
crankcase, already available in the BMW X1 xDrive28i, provides increased torque, improved performance and much reduced fuel consumption and emission levels as compared to the existing 6 - cylinder induction engine model BMW Z4 sDrive30.
The
new three - liter V6 gasoline unit with its aluminum
crankcase weights just 172 kilograms (379.2 lb).
The most dynamic version of the
new Z4 comes with the world's first inline - 6 engine to feature twin turbochargers, High Precision Injection, and an all - aluminum
crankcase.