Toyota V35A-FTS 3.5L Twin Turbo Engine Specs, Problems, Reliability. The V35A-FTS is a 3.5-liter twin-turbocharged V6 gasoline engine debuted in 2017 with the fifth-generation Lexus LS 500. This new member of Toyota’s Dynamic Force engine household is the first turbocharged V-engine in Toyota’s history. In the future, the manufacturer will stop using all V8 engines (1UR-FE, 3UR-FE) in Toyota and Lexus vehicles, and this 3.5-liter twin-turbo V6 will replace them. The brand-new engine is not only filled with technical services similar to the already widely known inline-4 A25A and M20Ab engine but also made several steps forward. The engine accomplishes 37% thermal performance.
The engine has an aluminum open-deck style engine block with thin cast iron liners fused into the block material. The rough outer surface area of liners promotes a strong connection and great heat transfer. The aluminum alloy bedplate installed to the block supplies increased rigidity to the structure. The oil pan has a two-piece design – the upper part is cast aluminum, and the lower part is a steel-stamped cover with a drain plug. The bottom includes a lightweight crankshaft with five balance weights and four narrow journals, light-weight aluminum pistons with friction-reducing polymer oil, covering and compression rings with anti-wear PVD finish, and fully drifting piston pins. Each cylinder of the V35A engine is geared up with an oil spray squirter with two oil nozzles to spray oil onto the bottom of the piston and decrease its temperature level.
On top of each cylinder bank, there is an aluminum alloy cylinder head with 4 valves per cylinder and a separate housing mounted on top for two camshafts. The head style uses laser-sprayed consumption valve seats instead of standard press-fitted ones. Intake channels are nearly straight, and the exhaust manifold is integrated into the cylinder head. Like other modern-day engines, the integrated exhaust manifold is likewise water-cooled to help shorten engine warm-up times to minimize emissions. For each cylinder, there are two consumption and 2 exhaust valves (sodium-cooled). The angle between the intake and exhaust valves is 41 degrees.
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Toyota V35A-FTS 3.5L Twin Turbo Engine Specs, Problems, Reliability
The valve springs have a cone-shaped shape of the upper part permitting using small and light spring retainers. Valves themselves are actuated by camshaft through roller rocker arms, and the valvetrain has hydraulic valve lash adjusters. There are 3 timing chains in this engine. The intake camshafts are driven by the main roller timing chain. Inside each cylinder head, there is a short secondary chain to drive the exhaust camshaft. The V35A includes a dual variable valve timing (DVVT). The consumption side is geared up with an electrical motor-operated variable valve timing (VVT-iE), and the exhaust camshafts use standard hydraulic VVT-i. The exhaust camshaft on the right side (traveler side) of the engine also drives a vacuum pump. On top of each head, there is a polymer cylinder head cover, which has an oil shipment channel inside.
The 3.5 L V35A engine is geared up with a combined fuel injection system D-4ST, which indicates that it has direct injection nozzles that feed fuel directly into the combustion chambers and a traditional multi-point fuel injection system that sprays fuel into the intake ports in front of the intake valves. Each cylinder head has its own high-pressure fuel pump driven by an additional lobe on each exhaust camshaft. Depending upon engine requirements, those pumps provide fuel pressure in the range of 2.4-20 MPa inside the created steel high-pressure fuel rails utilized for the direct injectors. The conventional fuel pump (low pressure) feeds high-pressure pumps and low-pressure fuel rail of the multi-point injection system. While direct injectors featured 6-point nozzles, the low-pressure injectors have nozzles with 10 holes.
The engine is geared up with 2 parallel turbochargers (one by each side) with electronically managed wastegate valves. Each turbocharger sends compressed air through its own air-to-water intercooler incorporated inside a polymer consumption air surge tank mounted on top of the engine. Turbochargers and intercoolers utilize a separate cooling system with an additional radiator and electrical pump. Underneath the air surge tank, there is a two-piece aluminum, lightweight and thin intake manifold. The exhaust system is equipped with 2 catalytic converters and, in addition, 2 Toyota’s gasoline particulate filters (GPF).
Toyota V35A-FTS 3.5L Twin Turbo Engine Problems and Reliability
It is hard to say at this point how trustworthy this engine is since it has actually not yet ended up being prevalent; in fact, it is presently readily available only for the premium Lexus LS 500 model. Like 2.7 L EcoBoost and 3.5 L EcoBoost engines in Ford’s model variety, very quickly, the 3.5-liter V35A-FTS twin-turbo engine will take a place under the hood in many Toyota designs such as Toyota Land Cruiser, Toyota Tacoma, Toyota Tundra, etc. And after that only time will inform how dependable this technically advanced engine is in the long term.
Toyota V35A-FTS 3.5L Twin Turbo Engine Specs
|Manufacturer||Toyota Motor Corporation|
|Cylinder block material||Aluminum|
|Cylinder head material||Aluminum|
|Fuel system||Direct injection + port injection|
|Number of cylinders||6|
|Valves per cylinder||4|
|Bore, mm||85.5 mm (3.36 in)|
|Stroke, mm||100.0 mm (3.93 in)|
|Displacement, cc||3,444 (210 cu in)|
|Type of internal combustion engine||Four-stroke, turbocharged|
|Power, hp||416 hp (310 kW)/6,000|
|Torque, lb ft||443 ft-lb (600 Nm)/1,600-4,800|
|Engine oil weight||SAE 0W-20|
|Engine oil capacity, liter||6.3 (6.7 qt) – RWD models;
7.1 (7.5 qt) – AWD models
|Oil change interval, mile||10,000 (15,000 km) / 12 months|
|Applications||Lexus LS 500|