In stock form, the Honda CRX’s top speed depends on the engine and trim, typically ranging from about 100 mph (160 km/h) for the smallest 1.3-liter models to around 125 mph (201 km/h) for the 1.6-liter Si. With aftermarket modifications, top speeds well beyond 140 mph (225 km/h) are possible in carefully built cars.
Stock top speeds by engine family
The following snapshot captures typical peak speeds for common CRX configurations from the production era.
- 1.3-liter CRX (early DX/LX, 1984–1987): approximately 100 mph (160 km/h).
- 1.5-liter CRX (DX/LX, 1988–1989): typically around 110 mph (177 km/h).
- 1.6-liter CRX Si (1990–1991 US): about 120–125 mph (193–201 km/h).
These figures are rough estimates based on factory data and contemporary tests. Real-world results vary with maintenance, road conditions, and aerodynamics.
Factors that influence top speed and real-world expectations
Even with the same engine, top speed can differ widely depending on several non-engine factors.
- Vehicle weight and overall condition, including wear on drivetrain and brakes.
- Transmission and gearing, especially final-drive ratios and gear spacing.
- Tire size, grip, and condition, which affect traction and handling at high speeds.
- Aerodynamics and body condition, including wind resistance and the presence of racks or spoilers.
- Altitude and air density, which reduce engine power at higher elevations.
In practice, stock CRXs reach the upper end of the ranges above on a clean, flat, and legal test environment; real-world speeds will vary.
Aftermarket modifications and tuning
Key considerations for high-speed builds
Many enthusiasts push the CRX beyond stock limits with engine swaps, forced induction, and other upgrades. The following options often have the biggest impact on top speed, but they require careful planning and professional installation.
- Turbocharging or supercharging the existing engine or swapping in higher-power powertrains (e.g., B-series or K-series engines) to achieve substantially higher horsepower and top speed.
- Engine swaps (e.g., B16A/B18-series) paired with appropriate gearing and suspension to improve high-speed stability and acceleration.
- Weight reduction and aerodynamic refinements to reduce drag and improve top-end performance.
Note that extensive modifications can affect braking, handling, legality, and reliability. Proper tuning, safety considerations, and compliance with local laws are essential.
Summary
The Honda CRX, a lightweight two-seat hatchback from the 1980s and early 1990s, generally tops out between 100 mph and 125 mph in stock form, depending on engine size and trim. With targeted modifications—especially engine swaps and forced induction—top speeds can be significantly higher, but such builds demand careful engineering, safety upgrades, and risk assessment. For most drivers, the CRX delivers spirited performance with the right maintenance and care.