Honda · EF8
Honda CR-X SiR EF8
The CR-X SiR was one of the very first cars in the world to receive Honda's groundbreaking VTEC variable valve timing system, packaged into a featherweight two-seat hatchback that remains one of the purest expressions of Honda's lightweight performance philosophy.
Spec Sheet
- Generation / Chassis Code
- EF8
- Years Produced
- 1989–1991
- Manufacturer
- Honda
- Country
- Japan
- Body Style
- 2-door hatchback
- Engine
- 1.6L inline-4 (B16A, DOHC VTEC)
- Horsepower
- 158–170 hp
- Torque
- 111 lb-ft
- Transmission
- 5-speed manual
- Drivetrain
- FWD
- Weight
- ~2,050 lbs
- 0–60 mph
- ~7.0 seconds
History
Honda used the CR-X as the launch platform for its first-generation VTEC B16A engine, proving the technology's ability to deliver both everyday drivability and a genuine high-rpm power surge, a formula that would define Honda performance cars for the following two decades.
Why It Became Famous
As one of the debut VTEC applications, it holds genuine historical significance in Honda's engineering story, while its featherweight two-seat hatchback body makes it an enduring favorite for autocross and lightweight-build enthusiasts.
Strengths
- One of the earliest production applications of Honda's game-changing VTEC system
- Extremely light weight makes its power feel genuinely energetic
- Simple, tunable mechanicals with strong B-series aftermarket support
- Compact two-seat hatchback body is ideal for autocross and tight circuits
Weaknesses
- No rear seats limit everyday practicality
- Values have risen as first-gen VTEC and Honda-history significance gained recognition
- Many surviving examples have hard autocross or track mileage
- Aging plastic trim and interior bits are increasingly hard to source
Common Problems
- VTEC solenoid wear and oil control issues on hard-driven, high-mileage engines
- Rust in rear hatch and floor pan areas
- Worn motor mounts amplifying vibration over time
- Suspension bushing wear on cars used hard for autocross or track days
Modification Potential
Excellent within the B-series world — being extremely light, it's a favorite base for engine swaps (later B18C/K-series) and lightweight autocross and time-attack builds.
Buying Guide
Verify genuine SiR trim and matching-numbers B16A engine, inspect for rust in the rear hatch structure, and check VTEC engagement and motor mount condition on a test drive.
Enthusiast Popularity Today
A cult favorite among Honda historians and lightweight-build enthusiasts, valued for its role as a VTEC pioneer and its featherweight, tunable chassis.
Fun Facts
- It was among the first cars anywhere to use Honda's VTEC variable valve timing system in production form
- Its two-seat-only layout makes it one of the most weight-conscious hatchbacks Honda ever built
- The B16A engine debuted in the CR-X before appearing in later Civics and Integras
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