4A/T, 2WD model # is R4A51. Rated torque input capacity is around 300 Nm (basically, it cannot handle the VGT engine), stall speed is around 2100 to 2600rpm
5A/T, 2WD model # is R5A51. Rated torque input capacity is around 350 Nm, stall speed is around 2200 to 2700rpm
5A/T, 4WD model # is V5A51. Rated torque input capacity is around 350 Nm, stall speed is around 2200 to 2700rpm
The VGT engine can generated 350Nm * 1800 rpm however, that engine torque cannot yet be transmitted FULLY to the wheels because the engine RPM is below the stall speed of the torque converter.
Normally, it will just take a fraction of a second to rev the engine from 1800 to 2200 rpm when accelerating from a complete stop, so the driver will hardly notice the slip.





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