Engine displacement refers to the size or capacity of an engine, which is typically measured in liters or cubic centimeters (cc). It represents the total volume inside the engine's cylinders where fuel and air get compressed and ignited to produce power. In simpler terms,
engine displacement tells us how big or small an engine is, affecting its performance and power output.
Full definition
The
larger engine displacement allows for increased torque, reducing engine speeds (RPM), which improves fuel economy at highway speeds.
That's nearly twice the horsepower from the
same engine displacement, and we can't wait to hear how the engine note sounds.
But with a bit
more engine displacement and a few other minor modifications, the engine now reaches its maximum torque at «just» 6,500 rpm, instead of 7,500 rpm.
With improvements being especially great in the light engine load range, this engine challenges the commonly - held belief that a large
engine displacement means poor fuel economy.
I ask you, given BMW's history of signaling its models»
engine displacements in its numeric monikers, why is it that the new 740i actually sports a 3.0 - liter turbocharged six - cylinder?
But Audi's new nomenclature, which replaces the current system based
on engine displacement, may take some extra getting used to.
With
engine displacement increased to nearly 5.2 - liters, the Sant» Agata V - 12 developed 420 horsepower at 7,000 rpm, aided by a new head featuring four valves per cylinder and Bosch K - Jetronic fuel injection.
In Europe, Renault 21 versions
with engine displacements below 2 L had transverse engines, just like smaller models such as the Renault 9.
Porsche engineers explained — with a bit of tongue - in - cheek self - awareness — how reducing the 2017 Porsche 911's
engine displacement from 3.4 / 3.8 liters in the Carrera and Carrera S to 3.0 with their new, 9A2 - series flat sixes represents «right - sizing» rather than «down - sizing.»
There were two engine choices available with better horsepower but retained the same
engine displacement as the base Toyota Pickup engine at 2.4 Liters and the same RPM.
Civic MUGEN Si Sedan Specs: Engine Type = i - VTEC DOHC 4 -
cylinder engine Displacement = 2.0 liters (1998 cc) Transmission = 6 - speed manual transmission Horsepower = 197 @ 7800 rpm Torque (lb. - ft.)
To Japanese buyers, it was regarded as a luxury vehicle as the exterior dimensions and
engine displacement exceeded Japanese Government regulations, and buyers in Japan were liable for additional taxes.
By the late 2000s, Acura had dropped the inclusion of
engine displacement numbers in its vehicle designations, retaining a simpler, two - or three - letter designation instead (e.g. 3.5 RL became RL).
These classes are primarily differentiated
by engine displacement, performance potential, placement within market, body style, and FIA and RACB homologation where available.
Various letters and numbers
signify engine displacement, separate coupe and sedan bodystyles, and differentiate between «sport» and «luxury» models.
Both models feature greater power due to an increase in
engine displacement for the Boxster and the incorporation of Direct Fuel Injection (DFI) for the Boxster S. Both models are now available with Porsche's new 7 - speed Porsche Doppelkupplungsgetriebe (PDK) dual clutch gearbox but come standard with a new 6 - speed manual gearbox.
The irony is that the people who care
about engine displacement tend to be the only ones who understood the naming systems in the first place.
Wiseco Piston stopped by 4 Piston Racing and talked to Wilson about their recent 500 naturally aspirated horsepower Honda K24 build for a specific FWD drag class that
limits engine displacement.
To achieve the sought -
after engine displacement (just about all classes are divided by displacement ratings), teams will destroke engines with custom crankshafts, turn V8s into V4s, machine super-small cylinder liners, and many other tricks.
Both downsizing (reducing
total engine displacement) and downspeeding (reducing engine speed through changes to the transmission and / or final drive ratio) are effective methods to meet vehicle power needs with reduced fuel consumption.
While the number previously
denoted engine displacement (for example, 35 = 3.5 L engine), the new number, 60, is largely to do with its place in the product lineup, with larger numbers usually corresponding to more expensive vehicles.
[45][46] The width dimension is kept under 1700 mm on all international models so that versions in Japan will be in compliance with Japanese Government dimension regulations with
engine displacement kept under 2000cc so that Japanese versions will offer Japanese buyers annual road tax savings for smaller engines.
If you're familiar with Ferrari's nomenclature, you know the model designation usually
reflects engine displacement and cylinder count; therefore the 458 used a 4.5 - liter V8.
The 2.7 L flat 6 sold in Japan was the first Subaru to exceed government
engine displacement regulations due to the engine being over 2000 cc, and as such was regarded as a luxury vehicle.
Because electric drivetrains are becoming more and more prevalent, Audi believes
advertising engine displacement on the backs of its cars makes less sense.
If you need to increase the rate of
engine displacement up to 2.1 liters, you need to buy crankshaft from M47D20 with 88 mm stroke.
Starting this fall, Audi will begin rolling out a new naming strategy for its vehicles that will see it switch from
highlighting engine displacement to Tesla - like power output designations.
Having purchased RB26DETT crankshaft and connecting rods, keeping old stock pistons along with this, you will have 2.1
L engine displacement.
With Hyundai now using the same 1.2 - litre petrol motor with the CVT, the 2018 i20 petrol automatic complies with the sub 4 - metre vehicle taxation norms, which restricts the
petrol engine displacement to 1200 cc.
It's also presumed that Mercedes will keep the G550 nomenclature, despite the
new engine displacement, just as it has with the G550 4x4 ².
The ones who bad mouth this vehicle are completely ignorant of the design intent / heritage of this vehicle.If Toyota / Subaru wanted to build a car to compete directly with other vehicles in
other engine displacement classes or chassis / body design theories / applications then they would have done so!
Compared to the previous generation, the 20 - percent - larger
engine displacement contributes to peak power production at 7000 rpm instead of the previous engine's 7800 rpm peak.
As pointed out by the report from Autoguide, there's also an outside (read: highly unlikely) chance that Lexus is just changing its vehicle names to better align with the
corresponding engine displacements.