Force_at_wheel = Q * K / R,
where Q=torque_at_engine, K=engine_speed/wheel_speed.
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One step ahead:
because, hp=Q * engine_speed
(if we use international unit, w,N*m, and rad/sec)
hence,
Force_at_wheel = Q * K / R = (hp/engine_speed) * (engine_speed/wheel_speed) /R
Force_at_wheel = hp / wheel_speed /R
That means, at certain car speed, your acceration is determined by hp, not Q.
the above is:
hp = wheel_speed * Q_at_wheel
interesting, isn't it?