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Contact InformationEtienne PlasHead of Product Communications+ 32 2 745 20 22etienne.plas@lexus-europe.comLaurence PothenProject Leader+ 32 2 745 34 33laurence.pothen@lexus-europe.comAlice BartkowskiProject Leader+ 32 2 745 34 58alice.bartkowski@lexus-europe.comImage GalleriesShare GallerySee Full Gallery
2015 IS 200tFollow Us OnlineFacebook.com/lexuseurope@Lexus_EUYouTube.com/LexusEuropeBackShare StoryLexus: 26 Jun 2015LEXUS TO LAUNCH IS 200t WITH INNOVATIVE 2.0l TURBO PETROL ENGINE

• New turbo engine offers superior smoothness and responsiveness,
with no turbo-lag and high fuel efficiency
• Engine mated to 8-speed Sport Direct Shift transmission
• IS 200t on sale in Europe as from September 2015

Brussels, Belgium - Lexus is expanding the range of vehicle equipped with its new 2.0-litre turbo engine. Following the launch of NX 200t in early 2015 and the announced arrival of RX 200t by the end of the year, IS is the third Lexus model to be fitted with this new engine.

Powered by a new 2.0-litre petrol turbo engine – with innovative D-4ST fuel injection technology for both fuel economy and instantaneous torque – the Lexus IS 200t sports sedan delivers 245 DIN hp (180kW) with a maximum torque of 350 Nm. Capable of rapid acceleration up to a top speed of 230 km/h, its 8-speed Sport Direct Shift transmission was developed for the high-performance RC F.

Featuring a breakthrough combination of water-cooled cylinder head, integrated exhaust manifold and twin scroll turbocharger, this all-new Lexus 2.0-litre turbo engine delivers fast throttle response, performance and high torque at low engine revs. For enhanced fuel economy, innovative valve timing (VVT-iW: Variable Valve Timing intelligent - Wide) allows the engine to switch between the Otto and Atkinson cycles.

The IS 200t returns a 0-100 km/h acceleration time of 7.0 seconds and an average fuel consumption of 7.0l/100 km.

Cylinder Head with Integral 4-into-2 Exhaust Manifold and Twin-Scroll Turbo
This innovative, combination of engine technologies has been designed to provide a high level of responsiveness with minimal turbo lag and enhanced low speed torque, and yet return an improved fuel economy.

The four-into-two exhaust manifold system pairs cylinders according to their expansion or compression stroke. Acting in conjunction with the highly-efficient, twin-scroll turbocharger, this innovative manifold structure prevents interference between the exhaust gasses from each cylinder, generating high torque across the widest possible rev range.

The engine further employs an air to liquid intercooler mounted directly to the engine to significantly reduce the intake volume downstream of the turbocharger, minimising turbo lag for a highly responsive performance.
The twin-scroll turbocharger itself features variable waste gate valve control. This minimises pumping losses by reducing back pressure during low engine loads when the turbo is not required realising good fuel economy.
In addition, the integration of the exhaust manifold within the cylinder head enhances exhaust gas cooling without sacrificing catalyst warm-up performance. This not only helps to suppress catalyst deterioration, but also expands driving range at the optimum, stoichiometric air-fuel ratio.

D-4ST Fuel Injection System
D-4ST (Direct injection 4 stroke gasoline engine Superior version with Turbo) combines a high pressure fuel system for injection directly into the cylinders with a low pressure system for injection into the ports. Injection is split between the direct and port injectors according to the engine load, optimising fuel combustion in all driving situations to enhance both low speed torque and fuel economy.

This advanced fuel injection system works in combination with turbocharging technology to create a high level of compatibility between the 'high tumble ratio' achieved by optimising the shape of the cylinder head intake ports and the piston tops, and turbo 'boost control'.

Innovative Dual VVT-iW Technology
Optimising torque throughout the engine rev range and allowing the engine to start in the Otto cycle and yet run in the more fuel efficient Atkinson cycle, the new Lexus turbo features innovative dual variable valve timing technology which adopts VVT-i to the exhaust valves and VVT-iW to the intake valves, but also delivers wide open throttle performance.

The late intake valve closing of the Atkinson cycle reduces pumping losses and boosts fuel economy. VVT-iW incorporates a mid-position lock which not only enables the Atkinson cycle to be maintained without sacrificing starting performance in cold weather.

Further Advanced Features
The new 2.0 litre turbo engine is remarkably light and compact. Cast with low nickel content heat resistant steel, and featuring a resin cylinder head cover, intake manifold and intake pipes, it weighs just 160 kg. The unit was bench-tested for more than 10,000 hours before extensive on-road testing began, during which it then covering more than one million kilometres.

Several measures have been adopted to reduce friction losses within various parts of the engine, enhancing fuel economy. The adoption of an offset crankshaft lowers the piston thrust load to reduce friction losses. Cylinder bore machining has been improved and a piston surface treatment applied to the piston skirts, reducing sliding resistance. Low tension piston rings have been used, and the weight of reciprocating parts reduced.

A lightweight roller rocker valve train and a low friction timing chain have been adopted, and the sliding parts of the chain fabricated in a low friction material. Low friction materials have also been used for the crankshaft oil seals, and the flow of lubricating oil optimised, with oil pump flow reduced through the adoption of a variable discharge mechanism.

Careful heat management within the engine further improves fuel efficiency. To that end, a cylinder block rapid warm-up system suppresses the flow of coolant into the block when the engine is cold, and a piston cooling oil jet control system cuts the supply of oil to the pistons to improve warm-up speeds.

Smoothness, Quietness and a Better Turbo Sound
With the rigidity of the main structural components already optimised to suppress vibration, the new engine is further equipped with a balance shaft featuring resin gears for even greater smoothness.

Newly developed lubricating calcium free oil removes the chance of engine knock at low engine revolutions, and the piston cooling oil jet system further improves anti-knock performance.
The water-cooled intercooler provides strong advantages in starting off acceleration and a 0.3-second reduction in 0–100km/h acceleration time over an air-to-air type alternative. The acceleration curve prioritises torque delivery at low speeds.

Turbo engines tend to be noisy when the throttle is closed (referred to as the ‘turbo sigh’). An electric air bypass valve and resonator have been adopted to greatly reduce characteristic turbocharger noise. As a turbocharged engine requires smooth intake flow for performance, Lexus engineers focused on creating special duct shapes which deliver power without noise.

Eight-speed transmission with paddle shifts
The IS 200t also received the 8-Speed Sport Direct Shift transmission with paddle shifts, originally developed for the RC F high-performance coupe. The rear wheel drive IS 200t is the first Lexus sedan to vary gear shifting in accordance to G-forces.

The transmission automatically downshifts during hard braking before a corner then holds a lower gear through the corner for best control and then selects the most suitable gear on corner exit to give the driver greater throttle response.

The IS 200t will be available as from September 2015.


IS 200t - TECHNICAL DATA
ENGINE
Maximum Output DIN hp / kW 245 / 180
Capacity (cm) / Cylinders / Valves 1998 / L4 / 16
Valve mechanism Dual VVT-i
Fuel type / Octane rating Petrol / 95 or +
Max. power (DIN hp / kW @ rpm) 245 / 180 @ 5800
Max. torque (Nm @ rpm) 350 @ 1650-4400

TRANSMISSION
Driven wheels Rear-wheel drive
Transmission 8-speed Sport Direct Shift automatic

PERFORMANCE
Max. speed (km/h) 230
0-100 km/h (s) 7.0

EMISSIONS* (g/km)
Emissions level Euro 6
CO2Combined 162 (with 17”wheels) / 167 (with 18”wheels)

FUEL CONSUMPTION* (l/100 km)
Combined 7.0 (with 17”wheels) / 7.2 (with 18”wheels)

BRAKES
Front and rear Ventilated discs

SUSPENSION
Front Double wishbone
Rear Multi-link

STEERING
Type Rack and pinion
Turns (lock to lock) 2.84
Min. turning radius (m) 5.2

WEIGHTS (kg)
Gross vehicle 2125
Kerb (min. – max.) 1590-1680
Towing (max. with / without brakes) 1500 / 750

DRAG COEFFICIENT
Cd value 0.28

CAPACITIES (l)
Fuel tank 66
Luggage compartment 480

JDR76

Very interesting, thanks for posting. Things that caught my eye:

Engine weighs 160 kg. That's roughly 352 pounds. The 2.5 V6 it replaces weighs about 366 pounds and the 350's 2GR-FSE is about 380 pounds (from what I can find online), so not much of a weight reduction. Curb weight is a bit over 3500 pounds.

Happy to see the 8 speed transmission.

This press release does seem to confirm rumors that it would only be RWD, or at least for European models.

7.0 seconds to 62 mph seems conservative. Lexus lists the RWD IS250 at 7.7 seconds to 60 mph.

Fuel consumption, at 7.0 l/100kph is over 33 mpg.

azmojo

Nevermind...

LeapFrog

I think you meant "RWD IS250".

Noeh

iTrader: (3)

0-60 in 7s is a total pig. Expect the new BMW 330i to do it in 5s.

JDR76

I did. Thanks for the catch. Edited.

evident

33mpg with those performance numbers would be a huge upgrade and make for a great base model IS. Still struggling to keep up with the 328 though.

corradoMR2

Wish 7L/100 km or 33mpg US would apply but they use a far more optimistic system in Europe to measure fuel consumption.

Case in point.
- In Europe, NX 200t AWD is rated at 7.9 L/100 km.
- In Canada, NX 200t AWD is rated at 9.5 L/100 km combined (10.6 city/8.4 hwy).
- In the US, NX 200t AWD is rated at 25 mpg combined (21/28).

So how does this translates to the IS in N.A.?
- The IS RWD is approximately 13% more fuel efficient than the NX AWD (7.0 vs 7.9) in Europe.
- Apply this factor onto the NX Canadian model and you get for the IS 200t RWD: 8.3 L/100km combined (9.3 city / 7.3)
- Apply this factor onto the US NX model and you get for the IS 200t RWD: 28 mpg combined (24/32)

These values seem very realistic and in line with the German and Caddy's 2L Turbo fours.

webra

Wow. Based on some figures just published the 328i auto does 0-60 in 5.4. Even accounting for the 4km/h (0-96 vs 0-100 km/h) difference, it's a big difference. It even matches or beats the IS350.

evident

bmw's mmc engines are pretty serious upgrades. the 335 is going to be awesome.

webra

For acceleration the equivalents look like this...

M3=LFA
335i=RC F
328i=IS350
320i=IS200t

Not sure about price equivalents.

My0gr81

Price wise:

LFA is way more than M3

RC-F is ~= to 335i

Both IS's are ~5k cheaper than their 32xi equivalent when optioned similarly

webra

It seems like there is nothing in the lineup that directly matches M's performance, and the 335i (and 340i) is much more accelerative than any IS....well maybe Lexus is trying to avoid direct comparisons... And while it's true the Lexus IS better equipped, there isn't an option to spend the equivalent of 5k more for a higher performance version of the IS.

jruhi4

Just wanted to share with you my commentary, analysis and number-crunching over on my.IS on the new IS 200t:
http://my.is/forums/f41/2016-lexus-s...europe-551945/

Admittedly, I went off on some weird tangents, such as speculating on which European countries might not offer the IS 200t; guessing the shade of red on the car in the press photos, and discovering that the IS 200t is actually 35 kg (77 lbs) heavier than the IS 250!

Oh, and thank yous to JDR76 and corradoMR2, whose posts in this thread I found interesting and informative enough to cite in my article.

VMRWheels

Can't wait! That feeling when you bought a BMW because FI.. and Lexus announces this haha