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The B20VTEC swap is a popular modification among car enthusiasts looking to enhance their vehicle’s performance. By combining the B20 block with a VTEC head, enthusiasts can achieve impressive horsepower gains. In this article, we will explore how to achieve 180+ horsepower on a B20VTEC swap, including installation tips and a cost analysis.
Understanding the B20VTEC Swap
The B20 engine, originally designed for the Honda CR-V, provides a robust foundation for performance upgrades. When paired with a VTEC head from the B16 or B18 series, the result is a powerful engine capable of delivering over 180 horsepower. This combination takes advantage of the B20’s displacement while utilizing the VTEC system’s efficiency and high RPM power.
Key Components Needed for the Swap
- B20 block
- B16 or B18 VTEC head
- VTEC wiring harness
- ECU compatible with VTEC
- Performance intake and exhaust systems
- Upgraded fuel pump and injectors
- Engine mounts for B20VTEC swap
Installation Tips for B20VTEC Swap
Preparation and Planning
Before beginning the swap, thorough preparation is crucial. Gather all necessary parts and tools. A clean workspace will help streamline the process. Additionally, consider the following:
- Research the specific engine compatibility.
- Join online forums for advice from experienced swappers.
- Set a realistic timeline for the project.
Engine Removal
To remove the existing engine, follow these steps:
- Disconnect the battery and remove the engine cover.
- Drain fluids and remove the radiator.
- Disconnect all wiring, hoses, and mounts.
- Use an engine hoist to safely lift the engine out.
Installing the B20 Block and VTEC Head
Once the old engine is out, it’s time to install the B20 block with the VTEC head:
- Install the VTEC head onto the B20 block, ensuring proper alignment.
- Torque the head bolts to the manufacturer’s specifications.
- Attach the intake and exhaust manifolds.
- Install the timing belt and ensure proper tension.
Wiring and ECU Setup
Wiring is a critical step in the B20VTEC swap. Follow these guidelines:
- Install the VTEC wiring harness, connecting it to the ECU.
- Ensure all sensors are connected properly.
- Consider using a standalone ECU for better tuning options.
Final Assembly and Testing
After completing the engine installation and wiring, reassemble the remaining components:
- Reconnect the radiator and fill with coolant.
- Install the battery and check all connections.
- Start the engine and monitor for any leaks or issues.
Cost Analysis of B20VTEC Swap
Understanding the costs involved in a B20VTEC swap is essential for budgeting. Here’s a breakdown of potential expenses:
- B20 block: $500 – $800
- VTEC head: $300 – $600
- Wiring harness: $150 – $300
- ECU: $200 – $500
- Performance parts (intake, exhaust): $300 – $700
- Miscellaneous (gaskets, fluids, mounts): $200 – $400
The total cost for a B20VTEC swap can range from approximately $1,850 to $3,300, depending on the quality of parts and whether you choose to do the work yourself or hire a professional.
Conclusion
Achieving 180+ horsepower on a B20VTEC swap is an exciting project that can significantly enhance your vehicle’s performance. With careful planning, the right components, and proper installation, you can enjoy the benefits of this powerful engine modification. Always remember to prioritize safety and consult with professionals when necessary.