U
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- Category: U
Undersquare refers to the relative size of the bore and stroke dimensions of an engine.
An undersquare engine has a larger stroke than bore diameter. Most modern engines have larger bores than strokes, so are oversquare.
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- Category: U
Understeer is when a vehicle does not turn in to a corner as much as the driver expects, and instead runs wide.
Understeer is caused by a loss of grip at the front wheels compared to the rear.
Most cars are set up to understeer at the limit, as this is a stable handling condition which most drivers can easily cope with – unlike oversteer.
In the USA, understeer is often called push.
Compare oversteer.
