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Toyota Racing Development or TRD is the in-house tuning shop for all Toyota, Lexus, and Scion cars. TRD is responsible both for improving street cars for more performance and supporting Toyota’s racing interests around the world. TRD produces various tuning products and accessories, including performance suspension components, superchargers, and wheels.
A torsion bar suspension, also known as a torsion spring suspension or incorrectly torsion beam, is a general term for any vehicle suspension that uses a torsion bar as its main weight bearing spring. One end of a long metal bar is attached firmly to the vehicle chassis; the opposite end terminates in a lever, mounted perpendicular to the bar, that is attached to a suspension arm, spindle or the axle. Vertical motion of the wheel causes the bar to twist around its axis and is resisted by the bar’s torsion resistance. The effective spring rate of the bar is determined by its length, diameter and material.
Acts like a small shock to the engine. The torque damper absorbs engine movement. Helps to stiffen up motor placement in the engine bay to assist the motor mounts.
Ignition timing, in a spark ignition internal combustion engine, is the process of setting the time that a spark will occur in the combustion chamber (during the power stroke) relative to piston position and crankshaft angular velocity.
