Here are some key details about the engine:
* Displacement: 1.6L
* Configuration: Inline-4
* Power: 115 hp (86 kW)
* Torque: 100 lb⋅ft (136 N⋅m)
* Fuel Type: Unleaded gasoline
* Transmission: 5-speed manual or 4-speed automatic
This engine is known for its lively performance and smooth operation, making the 1990 Miata a popular choice for enthusiasts.