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The Toyota TR engine is a family of gasoline engines that appeared in 2004. They are mainly used for Toyota Hilux and other vehicles in the Toyota IMV platform ; and are designed to be mounted longitudinally for pickup RWD and 4WD pickup applications.
Toyota swapped the dual-row timing chain used in older engines for a single-row chain with plastic guides in 1983. The new system reduced drag on the engine but introduced a new maintenance problem. After about 100,000 miles (160,000 km) of operation, the chain may stretch to the point that the hydraulic-operated chain tensioner cannot take up ...
On 13 July 2011, Toyota announced that the Hilux would receive a facelift, including a redesigned front end (front grille similar to IMV-based Innova and Fortuner) and other external styling changes, changes to the interior and a new turbocharged diesel engine rated at 107 kW (144 hp) and 343 N⋅m (253 lb⋅ft) of torque, as well as lower fuel ...
Consumption map of a 1.5-litre three-cylinder diesel engine. A consumption map or efficiency map [1] is a chart that displays the brake-specific fuel consumption of an internal combustion engine at a given rotational speed and mean effective pressure, in grams per kilowatt-hour (g/kWh).
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It is the rate of fuel consumption divided by the power produced. In traditional units, it measures fuel consumption in pounds per hour divided by the brake horsepower, lb/(hp⋅h); in SI units, this corresponds to the inverse of the units of specific energy, kg/J = s 2 /m 2. It may also be thought of as power-specific fuel consumption, for ...
Toyota sought to enhance the drivability pattern of the engine (over the 3VZ) at exactly 3000 rpm, since that was the typical engine speed for motors cruising on the highway. The result was less cylinder distortion coupled with the decreased weight of rotating assemblies, smoother operation at that engine speed, and increased engine efficiency.