The Fox Body Mustang debuted in 1979 with a production run that ran until 1993. This legendary vehicle brought the Ford Mustang into the modern age and saw massive changes in the Mustang’s design and appeal. Today, the Fox Body Mustang is an affordable collectible with low mileage examples seeing small growth in value while used Fox Bodies remain affordable. To see how healthy a high mileage Mustang really is, the team at LMR put their Fox Body Mustang on the dyno to see how much horsepower was lost over the years.
The subject Mustang in LMR’s video is a 1990 Fox Body Mustang GT with over 180,000 miles. This vehicle is used as LMR’s shop car and has not had the easiest life with multiple dyno runs and constant work performed for videos on LMR’s YouTube channel. In stock trim, the 1990 Mustang GT was rated at 225 horsepower (168 kW) and 300 ft-lb (410 Nm) of torque, which may seem laughable in today’s world of 740 horsepower Mustang GT500s but in the early 1990s, it was more than enough.