The 1989 Ford Mustang was a virtual carryover from the 1987
Mustang and 1988 Mustang
The major change was the introduction of the Mass Air fuel injection
version of the EEC-IV on all Mustangs.
This was great news to enthusiasts who could now modify their engines
endlessly as the mass-air system is able to adapt easily to airflow
The earlier speed density equipped Mustangs were not very adaptive
in their stock form which resulted in poor driveability for owners
who chose to modify their cars.
Also, the cam profile was modified slightly this year to lower
valvetrain noise. According to Ford the new cam resulted in a loss
of 2 to 3 horsepower over the 1988 model.
The 1989 Mustang also represented the 25th year of production for
the Mustang lineup. As such all 1989 Mustangs received a special
25th anniversary badge on passenger side of the dash.
During the 1989 Mustang model year Steve Saleen created his first
"Super" coupe Mustang model (although the Saleen model
could be had in convertible, hatchback, or coupe). Until 1989 all
Saleen Mustangs had utilized a mostly stock drivetrain. This all
changed in 1989 and establish a new direction for the highly desirable
Saleen nameplate. In 1989 Saleen did extensive porting to the intake
and heads, attached a 65mm throttle body, upgraded the exhaust,
installed a hotter camshaft and wider ratio rockers. All these changes
resulted in 292 horsepower (nearly 70 over stock!). All 1989 Saleen
Mustangs were white with grey and white interiors.
Models: GT, LX, convertible,