Premium Replacement 6L80e Torque Converter

Circle D 300mm Pro Series Triple Disk Torque Converter: The Ultimate Upgrade for GM 6L80E

When upgrading your GM 6L80E transmission, the Circle D 300mm Pro Series Triple Disk Torque Converter is a must-have component. This high-performance torque converter optimises your vehicle’s power delivery, improving acceleration, durability, and efficiency. Whether building a street-friendly daily driver or a powerful performance machine, this converter delivers the necessary reliability and performance.Contact us for a Torque Converter to suit other applications and gearboxes. We are Australian Dealers for CircleD Specialties. We have worked with them via Drag Racing since 2006.

Why Upgrade to the Circle D Pro Series 6l80 Torque Converter?

The factory torque converter in the GM 6L80E is adequate for stock setups, but it quickly becomes a limiting factor in modified vehicles. Upgrading to the Circle D Pro Series 6l80e torque converter offers a host of benefits, including:

1. Higher Stall Speed

   • The Pro Series torque converter features a stall speed of 2400-2600 RPM (compared to the stock 2000 RPM). This improves torque multiplication and power delivery, especially for vehicles with mild camshafts or other performance upgrades.

2. Triple Disk Lockup

   • With a triple disk lockup clutch, this converter is designed to handle up to 1200 rear-wheel horsepower (rwhp). The added durability makes it perfect for high-power applications while maintaining smooth and efficient operation.

3. Billet Construction

   • The billet front cover ensures exceptional strength and durability, eliminating the flex and weaknesses of stamped steel covers. This results in a more reliable and long-lasting converter.

4. Advanced Manufacturing

   • Circle D utilizes state-of-the-art technology, including CFD modelling software, SolidWorks design, and 5-axis CNC machining, all performed in-house at their Houston, Texas, facility. This ensures unparalleled precision and quality in every converter.

5. Street and Strip Performance

   • The Pro Series 6l80 stall converter is designed to provide seamless performance for both daily driving and track use. Its dual-purpose design ensures smooth operation during commutes and exceptional performance under load.

Key Features of the Circle D 300mm Pro Series 6l80 Torque Converter

• Torque Converter Diameter: 300mm (12 inches)
• Stall Speed: 2400-2600 RPM (stock is 2000 RPM)
• Billet Front Cover: For superior strength and durability
• Triple Disk Lockup: Capable of handling up to 1200 rwhp
• Furnace Brazed Impeller: Enhances reliability and longevity
• Flanged Style Hub: Ensures precise fitment and performance
• Bearing Retainer: Reduces friction and improves efficiency

These features combine to create a torque converter that is stronger, more efficient, and more responsive than the factory unit.

Circle D’s State-of-the-Art Technology

Circle D has redefined what’s possible with torque converters. Their cutting-edge manufacturing facility integrates advanced tools and techniques to produce converters with the highest performance and durability standards. Here’s how they do it:

1. CFD Modeling and SolidWorks Design:
   • Advanced modelling tools ensure optimal fluid dynamics within the converter, maximizing efficiency and power transfer.
2. 5-Axis CNC Machining:
   • Precision machining guarantees perfect fitment and consistent performance.
3. Comprehensive Data Analysis:
   • Each converter is fine-tuned to meet the specific needs of high-performance applications, ensuring the best possible results for your setup.

Single Disk vs. Multi-Disk Lockup Torque Converters

When choosing a torque converter, you may encounter the debate between single-disk and multi-disk lockup designs. Here’s what you need to know:

Single Disk Lockup

• Design: Features a single clutch for locking the converter during steady cruising.
• Use Case: Adequate for stock or mildly modified vehicles with moderate power output.
• Limitations: Not suitable for high-horsepower applications due to limited durability.

Multi-Disk Lockup

• Design: Includes multiple clutches, providing significantly more surface area for locking.
• Use Case: Ideal for high-performance and heavy-duty applications, where increased durability and heat resistance are essential.
• Benefits: It improves torque and reduces slippage, making it perfect for vehicles with boost, cam upgrades , or stroker engines.

For applications pushing higher horsepower, such as with the GM 6L80E, the Circle D Pro Series Triple Disk Torque Converter is the clear winner. Its multi-disk design ensures reliable performance even under extreme conditions.

Benefits of a High-Quality Torque Converter

Upgrading to a high-performance torque converter like the Circle D Pro Series offers numerous advantages:

1. Improved Acceleration:
   • The higher stall speed allows the engine to reach its powerband more quickly, resulting in faster and smoother acceleration. Good High Stall Converters actually multiply torque; they don’t just feel like they are slipping.
2. Enhanced Durability:
   • With billet components and a triple disk lockup, this converter is built to handle the demands of high-power builds.
3. Reduced Slippage:
   • The triple disk lockup minimizes slippage, ensuring efficient power transfer and improved fuel economy.
4. Versatility:
   • The Pro Series converter delivers consistent performance in any scenario and is suitable for street and track use.
5. Custom Tuning:
   • Circle D’s ability to fine-tune stall converters ensures compatibility with your specific build, whether for daily driving or competitive racing.

Why Choose the Circle D 300mm Pro Series Torque Converter?

The Circle D Pro Series Torque Converter is a top-tier choice for anyone upgrading or replacing their standard torque converter for their GM 6L80E transmission. Here’s why:

• Unmatched Quality: Manufactured with precision and durability in mind, this converter is built to last.
• Enhanced Performance: It outperforms stock converters in terms of improved acceleration and reliable lockup under high loads.
• Proven Reliability: It is designed to handle up to 1200 rwhp and is the ideal choice for modified vehicles.
• Expert Engineering: This stall converter delivers consistent results backed by Circle D’s state-of-the-art technology and years of expertise.

Contact us to discuss or order

Call us on 02 91193895