Core Information

Circle D Specialties - Core return form

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January 24, 2024

Gearing and SLR - Drag Racing Applications
Today we are going to discuss how to correctly gear a drag racing combination to achieve optimum torque converter function as well maximize overall performance potential from the entire vehicle.
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January 24, 2023

4L80 Torque Converter Clutch Drag?
Let's talk about torque converter clutch drag when using a multi disc torque converter in a 4L80E transmission. We see this issue come up from time to time, especially (but not limited to) in 4L80E applications equipped with a transbrake...
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October 6, 2022

Torque Converters: Single-Disk vs. Multi-Disk Lockup
Today we're diving in to the often debated & sometimes mysterious topic of single disc vs. multi disc lock-up torque converters for use in common OEM-based overdrive transmissions. To begin, we need to understand the purpose of a torque...
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