Table of Contents
The E30 M20 engine is a beloved choice among car enthusiasts, known for its potential and performance. One of the most effective ways to boost the horsepower of this engine is through the installation of an upgraded intake and exhaust system. In this article, we will guide you through the process of installing these components to help you gain an impressive 20-30 horsepower.
Why Upgrade Your Intake and Exhaust?
Upgrading the intake and exhaust systems of your E30 M20 engine can significantly improve airflow, which in turn enhances performance. Here are a few reasons why you should consider this upgrade:
- Increased airflow: A performance intake allows for a greater volume of air to enter the engine, while a high-flow exhaust helps expel exhaust gases more efficiently.
- Improved throttle response: Enhanced airflow leads to better engine responsiveness, allowing for quicker acceleration.
- Higher horsepower: With improved intake and exhaust, you can expect a noticeable increase in horsepower, typically between 20-30 hp.
- Better sound: Upgraded exhaust systems often provide a more aggressive and pleasing sound compared to stock systems.
Required Tools and Parts
Before starting the installation process, make sure you have all the necessary tools and parts. Here’s a list of what you will need:
- Tools:
- Socket set
- Wrench set
- Screwdrivers
- Torque wrench
- Jack and jack stands
- Safety glasses
- Shop towels
- Parts:
- Performance intake kit
- High-flow exhaust system
- Gaskets and seals
- Clamps
- Heat shield (if required)
Step-by-Step Installation Guide
1. Preparing Your Vehicle
Before you begin, ensure your vehicle is parked on a flat surface and the engine is cool. Use the jack to lift the front of the car and secure it with jack stands. This will give you better access to the engine bay and undercarriage.
2. Removing the Stock Intake
Start by disconnecting the battery to prevent any electrical issues. Next, remove the airbox by loosening the clamps and bolts securing it in place. Carefully detach the intake hose from the throttle body and remove the air filter. Set these parts aside as you will not need them anymore.
3. Installing the Performance Intake
Follow the instructions provided with your performance intake kit. Generally, you will attach the new intake tube to the throttle body and secure it with clamps. Install the new air filter at the end of the intake tube, ensuring it is properly seated. Make sure all connections are tight and secure.
4. Removing the Stock Exhaust System
Next, you will need to remove the stock exhaust system. Start at the rear of the car and work your way forward. Use a socket wrench to remove the bolts securing the exhaust to the hangers and the catalytic converter. Carefully lower the exhaust system and set it aside.
5. Installing the High-Flow Exhaust System
Begin installing the new exhaust system by positioning it in place. Start at the rear and work your way forward, securing each section with clamps and bolts as you go. Ensure that the exhaust is properly aligned and that there are no leaks at the joints. Tighten all connections with a torque wrench to the manufacturer’s specifications.
6. Final Checks
Once the intake and exhaust systems are installed, double-check all connections and ensure everything is secure. Reconnect the battery and start the engine. Listen for any unusual sounds and check for leaks around the exhaust system. If everything sounds good, take your car for a test drive to experience the new power!
Performance Gains and Tuning
After installing the new intake and exhaust systems, you may want to consider tuning your engine to maximize performance gains. A proper tune can optimize air-fuel ratios and ignition timing, further enhancing horsepower and efficiency. Here are some options:
- ECU Remapping: A professional remap can adjust the engine parameters for better performance.
- Aftermarket ECU: Consider upgrading to a performance ECU designed for your setup.
- Dyno Tuning: A dyno session can help you fine-tune your engine for maximum power output.
Conclusion
Upgrading the intake and exhaust systems of your E30 M20 engine is a fantastic way to increase horsepower and improve overall performance. With the right tools, parts, and a bit of patience, you can achieve a power gain of 20-30 hp. Enjoy the enhanced driving experience and the satisfaction of working on your own vehicle!