New Toyota Supra rumored to get Toyota twin turbo V6 engine

Would you pay $50k-$60k for a 350-400hp "Supra"?

  • Yes

    Votes: 10 32.3%
  • No

    Votes: 6 19.4%
  • Maybe, depends on other factors like weight, styling and etc.

    Votes: 15 48.4%

  • Total voters
    31

GTSSportCoupe

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Found some more info on the engine on a Lexus Enthusiast website:


The fifth-generation Lexus LS will debut the V35A-FTS twin-turbocharged 3.5-liter V6 developed specifically for the new flagship.


The new engine puts out 416 horsepower and 442 lb-ft of torque, and represents a major upgrade over the outgoing 4.6L V8 of the current model. In terms of raw information, here’s the point form:

  • DOHC 24-valve twin turbocharged V6 with intake VVT-iE and exhaust VVT-i continuously Variable Valve Timing with intelligence and D-4S direct-to-cylinder injection system plus secondary port injectors
  • Displacement: 3444 cm (210.2 cubic inches)
  • Bore x stroke: 88.5mm x 100mm (3.37 inches x 3.94 inches)
  • 416 horsepower @ 6000 rpm (310 kW, 421 ps)
  • 442 lb.-ft. of torque @ 1600-4800 rpm (600 Nm, 61.2 kg-m)
  • Flat torque curve from 1,600 RPM to 4,800 RPM
There’s even a diagram:


In building the V35A-FTS, engineers turned to Toyota’s shuttered F1 program and ongoing race efforts in World Rally Championship and World Endurance-Racing Championship. The result was a major redesign of the intake ports, including an increased valve angle and the use of laser-clad intake valve seats in the cylinder heads — here’s a video demonstration comparing old and new:

The LS 500 marks the first time twin turbochargers have been used in a Lexus vehicle. Rather than outsourcing the tech, the system was designed and produced in-house to ensure LS flagship levels of performance and quiet operation.


Compared to a conventional turbocharger, the V35A-FTS uses a longer turbine with curved blades, ensuring consistent turbo boost and availability even at low engine speeds. The system is controlled by a proprietary electric-actuator wastegate — an electric wastegate valve is used to control turbocharger boost, output, fuel economy, and emission performance, while a motorized actuator is used to control the opening and closing of the valve.

A new version of the Lexus D-4S gasoline direct injection plus port injection system was developed for the TTV6 — called D-4ST, it controls new six hole direct injectors and the port fuel injectors. To reduce lag, twin water-to-air intercoolers are mounted on top of the engine, directly between the turbochargers and intake throttle.

Remarkable powertrain smoothness, a Lexus hallmark, begins deep inside the cylinder block, where a ladder frame support for the crankshaft main bearings adds rigidity for low vibration. Redesigned engine mounts, the electric wastegates and numerous other features also contribute to the engine’s ultra-smooth demeanor.

As for fuel economy — the rear-wheel drive LS will get City 19 mpg/ Highway 29 mpg/ Combined 23 mpg, while the all-wheel drive model will rate at City 18 mpg/ Highway 27 mpg/ Combined 21 mpg.
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