The Honda CRX Type R, with its lightweight chassis and rev-happy B16A engine, is a legend among enthusiasts. But achieving a blistering 9-second quarter-mile time requires a significant departure from stock specifications. This isn't just about bolt-ons; it's about a complete transformation of the car into a highly tuned drag racing machine. Let's delve into the specifics of what it takes to reach this impressive feat.
What Engine Modifications are Needed for a 9-Second 1/4 Mile?
A stock B16A is nowhere near capable of a 9-second quarter mile. Achieving this requires a substantial engine swap, usually to a more powerful and robust engine like the B18C, B18C5, or even a more highly modified K-series. This isn't simply a drop-in swap; significant modifications are necessary. These include:
- Forced Induction: Turbocharging or supercharging is absolutely essential. A substantial turbo kit with supporting modifications is needed to generate the necessary horsepower.
- Internal Engine Upgrades: Forged internals (pistons, connecting rods, crankshaft) are crucial to handle the increased stress of the forced induction.
- Engine Management System: A sophisticated standalone engine management system (EMS) like AEM or Haltech is needed for precise tuning to maximize power and ensure reliability.
- High-Flow Cylinder Head: A ported and polished cylinder head with upgraded valves and springs is essential for optimal airflow.
- Exhaust System: A custom-built exhaust system with a large diameter piping is vital for efficient exhaust gas scavenging.
- Fuel System: A high-capacity fuel pump and fuel injectors are necessary to supply the engine with the required fuel.
What Transmission Modifications are Needed?
The stock transmission won't survive the power output required for a 9-second pass. Modifications to the transmission include:
- Shortened Gear Ratios: These allow for quicker acceleration through the gears.
- Strengthened Gears and Components: Heavily modified gearsets and synchronizers are essential to handle the increased torque.
- Clutch Upgrade: A high-performance racing clutch is critical for reliable power transfer.
What Other Modifications are Necessary?
Beyond the engine and transmission, other crucial modifications include:
- Weight Reduction: Stripping the car of unnecessary weight is crucial. This includes removing interior components, using lightweight body panels, and potentially even removing the windshield.
- Suspension and Tires: A race-tuned suspension and drag slicks provide optimal traction for launching and maintaining grip throughout the run. Proper suspension setup is critical for consistent performance.
- Safety Equipment: A roll cage, racing harnesses, and a fire suppression system are absolutely essential for safety.
What are the Costs Involved in Building a 9-Second CRX?
Building a 9-second CRX is a significant financial undertaking. The cost can easily exceed $20,000, and in many cases, reach significantly higher figures depending on the quality of components and the extent of the build. This includes the cost of the engine, parts, labor, tuning, and safety equipment.
How Much Horsepower is Needed for a 9-Second 1/4 Mile?
While there's no magic number, most CRXs achieving 9-second quarter-mile times are producing well over 600 horsepower at the wheels. However, horsepower alone isn't the entire story; proper traction and efficient power delivery are also crucial.
Is it Possible to Achieve This with a B16A Engine?
While incredibly challenging, achieving a 9-second quarter-mile with a heavily modified B16A is theoretically possible, but highly improbable. The limitations of the engine's displacement and inherent strength make it difficult to achieve the necessary power output reliably. Swapping to a larger displacement engine like a B18 is a far more practical and common approach.
This detailed overview highlights the immense effort and resources required to transform a CRX Type R into a 9-second quarter-mile machine. It's a testament to the passion and dedication of those who undertake such ambitious projects. Remember, safety should always be the top priority in any high-performance build.
