HOW TO Install Intake Manifold for 6.7L Cummins 2007-2024 Dodge Ram 2500/3500 | SPELAB

Upgrading your 6.7L Cummins engine with the SPELAB Intake Manifold is an excellent way to improve airflow, throttle response, and overall performance.

This step-by-step guide will help you install the intake manifold on your Dodge Ram 2500/3500 from 2007 to 2024.

Follow these instructions closely to ensure a smooth and successful installation.

Tools and Materials Needed

• Socket set and wrenches (especially 6mm, 10mm, 12mm sizes)
• Torque wrench (capable of 18-20 ft-lbs)
• Threadlocker (Blue Loctite recommended)
• Cleaning tools (rags, Scotch Brite pad, vacuum cleaner)
• SPELAB Intake Manifold Kit

Intake Manifold for 6.7L Cummins 2007-2024 Dodge Ram 2500/3500 | SPELAB

Intake Manifold

$698.00

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Step-by-Step Installation Guide

1. Prepare the Vehicle

• Park the vehicle on a flat surface and disconnect the negative battery terminal to prevent electrical issues during the installation.
• Clean the engine bay to remove any dirt or debris. This ensures that no contaminants will enter the engine during installation.

2. Remove the Stock Components

• Remove the stock intake manifold: Start by disconnecting any sensors, hoses, and electrical connectors attached to the stock intake manifold. If you are doing an EGR delete, now is the time to remove those components.

3. Clean the Intake Ports

• Clean the intake ports thoroughly using a Scotch Brite pad or similar tool to remove any carbon buildup. Ensure the surface is clean and smooth for proper gasket seating.
• Use a vacuum cleaner to remove any loose debris from the intake area. This prevents any particles from entering the engine during the installation process.

4. Install the SPELAB Intake Manifold

• Install the new gaskets: Place the provided square and round paper gaskets in their respective positions, ensuring they align correctly with the intake ports.
• Mount the intake manifold: Position the SPELAB intake manifold over the intake ports. Use the included hardware (M8L43L35 bolts, washers) to secure the manifold. Apply Blue Loctite to the bolts and tighten them in a crisscross pattern to 18-20 ft-lbs of torque. Be sure to tighten the bolts evenly to avoid air leaks.

5. Grid Heater Delete Plate Installation (If Applicable)

• If you are installing the SPELAB Grid Heater Delete Plate, follow these steps:
  • Install the aluminum plate: Place the new aluminum plate provided in the kit over the grid heater location.
  • Tighten bolts and spacers: Use the provided hardware, including aluminum spacers and bolts, to secure the grid heater delete plate. Tighten all bolts to 18 ft-lbs of torque.
  • Connect heater wires: Route the heater power supply wire to the intake air heater element, ensuring it is secured and away from any moving parts.

6. Reconnect Sensors and Electrical Components

• Install and clean sensors: Before installing, clean the MAP sensor and intake air temperature sensor to ensure accurate readings. Then, install them into the designated 1/8" NPT ports on the SPELAB intake manifold. Be careful when handling these sensors as they are delicate and can easily be damaged.
• Reconnect wiring: Reconnect all wiring harnesses, including those for the throttle valve and EGR components (if applicable). Ensure that the wires are securely fastened and not touching any sharp or hot components that could cause damage over time.

7. Final Adjustments and System Checks

• Tighten all connections: Double-check that all bolts and connections are torqued correctly, and that all sensors, fuel lines, and connectors are properly secured. Make sure the intake manifold is sitting flush with the engine and that no components are misaligned.
• Reconnect the battery: Once all components are installed and secured, reconnect the negative battery terminal.

8. Start the Engine and Test

• Initial start-up: Start the engine and allow it to idle for a few minutes. Expect a longer crank time initially as the fuel system pressurizes. This is normal for common rail systems after fuel line work.
• Check for leaks: While the engine is running, carefully inspect the intake manifold, fuel lines, and connections for any signs of air, fuel, or coolant leaks.
• Test drive: After the engine idles and warms up, take the vehicle for a short test drive. Monitor for any warning lights, odd noises, or performance issues. Check that throttle response has improved and that the engine runs smoothly.

Common Issues to Check After Installation

• Hard starts: If you experience hard starting after the initial start-up, recheck your fuel lines and fittings to ensure there are no leaks or loose connections.
• Soot trails: Inspect the intake manifold and EGR crossover tube for any soot trails, which can indicate a loose gasket or improper seal.
• Check engine light: If the check engine light comes on, use an OBD scanner to diagnose the issue. Ensure that all sensors are properly connected and functioning.

Benefits of the SPELAB Intake Manifold

• Increased Boost Efficiency: Enhances boost levels without adding stress to the turbine, improving overall engine performance.
• Larger, Unrestricted Design: The SPELAB intake manifold has a significantly larger and less restrictive design than stock, improving airflow and engine efficiency.
• Faster Throttle Response: The optimized airflow results in quicker throttle response, providing a more responsive driving experience.
• Complete Installation Kit: Includes all necessary hardware and components for a straightforward, hassle-free installation process.
• Customizable Ports: The manifold includes four 1/8" NPT ports for added customization, such as boost gauges or sensor installations.

Conclusion

Upgrading your 6.7L Cummins Dodge Ram with the SPELAB Intake Manifold offers noticeable improvements in airflow, throttle response, and overall engine performance. While the installation process requires some attention to detail, the provided hardware and comprehensive kit make it a manageable DIY project for experienced diesel truck enthusiasts.

With increased boost efficiency, improved throttle response, and enhanced engine performance, the SPELAB Intake Manifold unlocks your Cummins engine's full potential. If you have any questions about the installation process or the SPELAB product line, feel free to contact us for further assistance.

FAQs

Q1: Does the SPELAB 6.7 Cummins Intake Manifold fit all Dodge Ram 2500/3500 models?
A1: The SPELAB intake manifold is compatible with 2007-2024 Dodge Ram 2500/3500 6.7L Cummins Diesel models, except for cab and chassis versions.

Q2: What are the main performance benefits of installing the SPELAB intake manifold?
A2: The SPELAB intake manifold improves airflow, increases boost efficiency, enhances throttle response, and allows for better oxygen flow, which results in improved engine performance and power output.

Q3: Is the SPELAB intake manifold compatible with the stock fuel lines?
A3: Yes, the SPELAB intake manifold comes with a proprietary fuel line designed to integrate with stock components for a seamless installation.

Q4: Can I install the SPELAB intake manifold without removing the grid heater?
A4: Yes, the SPELAB intake manifold can be installed without removing the grid heater. However, a grid heater delete option is also available for users who want to optimize airflow even further.

Q5: Does the SPELAB intake manifold require additional tuning after installation?
A5: No additional tuning is required after installing the SPELAB intake manifold. It is designed to provide performance improvements without the need for tuning.

Q6: How much torque should be applied to the bolts during installation?
A6: The bolts for the SPELAB intake manifold should be torqued to 18-20 ft-lbs to ensure a secure and proper fit.

Q7: Will the SPELAB intake manifold trigger a check engine light?
A7: No, the SPELAB intake manifold should not trigger a check engine light if all sensors and connections are properly installed. If a check engine light appears, verify that all electrical connections and sensors are securely connected.

Q8: Can I use this intake manifold with an EGR delete system?
A8: Yes, the SPELAB intake manifold can be used with an EGR delete system. If you plan to delete the EGR, ensure that you have the proper components for that modification.

Q9: Does the kit come with all necessary hardware for installation?
A9: Yes, the SPELAB intake manifold kit includes all necessary hardware, gaskets, bolts, and spacers, making the installation process straightforward.

Q10: What material is the SPELAB intake manifold made from?
A10: The SPELAB intake manifold is made from durable aluminum alloy, ensuring it is both lightweight and strong, capable of withstanding high-performance conditions.