Table of Contents
The Toyota 2JZ engine is renowned for its performance and tuning potential, especially among car enthusiasts looking to achieve high horsepower outputs. This guide will take you through a step-by-step process to build your 2JZ engine to reach 600 horsepower, along with estimated costs for each modification.
Understanding the 2JZ Engine
The 2JZ engine, particularly the 2JZ-GTE variant, is a 3.0-liter inline-six engine that was used in the Toyota Supra. It features a strong iron block, forged steel crankshaft, and a robust head design, making it an ideal candidate for high-performance builds.
Initial Considerations Before Building
- Set your horsepower goals clearly.
- Determine your budget for the build.
- Decide whether to build the engine yourself or hire a professional.
Step 1: Engine Disassembly
Before making any modifications, you need to disassemble the engine. This step is crucial to inspect the components and ensure they are in good condition.
- Remove the engine from the vehicle: $200 – $500
- Disassemble the engine: $300 – $600
Step 2: Upgrading the Internals
To handle the increased power, upgrading the internals is essential. This includes the pistons, rods, and crankshaft.
- Forged pistons: $600 – $1,200
- Forged connecting rods: $500 – $1,000
- Balanced crankshaft: $300 – $600
Step 3: Cylinder Head Modifications
The cylinder head plays a vital role in airflow and performance. Modifications here can significantly increase horsepower.
- Port and polish the head: $500 – $800
- Upgraded valve springs: $200 – $400
- Aftermarket camshafts: $600 – $1,200
Step 4: Turbocharger Upgrade
To achieve 600 hp, a larger turbocharger is necessary. This step can greatly enhance the engine’s performance.
- Upgraded turbocharger: $1,000 – $2,500
- Turbo manifold: $300 – $800
- Wastegate: $200 – $500
Step 5: Fuel System Upgrades
A high-performance fuel system is crucial for supporting increased horsepower. This includes fuel injectors and a fuel pump.
- High-flow fuel injectors: $300 – $600
- Upgraded fuel pump: $200 – $400
- Fuel pressure regulator: $100 – $300
Step 6: Engine Management System
To optimize performance, a standalone engine management system is essential. This allows for tuning to maximize the engine’s potential.
- Standalone ECU: $500 – $1,500
- Tuning software: $200 – $500
- Professional tuning: $300 – $800
Step 7: Exhaust System Upgrade
A high-performance exhaust system can improve airflow and enhance the engine’s sound while contributing to power gains.
- Aftermarket downpipe: $200 – $500
- Cat-back exhaust system: $300 – $800
Step 8: Cooling System Improvements
With increased power comes the need for better cooling. An upgraded cooling system can prevent overheating during performance driving.
- Upgraded intercooler: $400 – $1,000
- High-performance radiator: $300 – $700
- Oil cooler: $200 – $500
Estimated Total Costs
After completing all the upgrades, you can expect to invest significantly in your 2JZ build. Below is an estimated total:
- Engine disassembly: $500 – $1,100
- Internals upgrade: $1,400 – $2,800
- Cylinder head modifications: $1,300 – $2,400
- Turbocharger upgrade: $1,500 – $3,800
- Fuel system upgrades: $600 – $1,300
- Engine management system: $1,000 – $2,800
- Exhaust system upgrade: $500 – $1,300
- Cooling system improvements: $900 – $2,200
Final Thoughts
Building a 2JZ engine to 600 hp is a rewarding project that requires careful planning and investment. By following this guide and understanding the costs involved, you can achieve your performance goals and enjoy the thrill of driving a high-powered Toyota.