How to find the right Automotive Performance Torque Converters AI guide
Written by an AI model from its trained knowledge.
What the AI looks for in Automotive Performance Torque Converters
- Stall speed match
- Choose stall based on the cam's usable powerband, rear gear, tire size and vehicle weight, not just the advertised number Real stall depends on engine torque, so the same converter stalls differently behind different engines.
- Transmission and input spline
- Match the exact transmission model and input shaft spline Converters for the same housing family can still differ in spline and hub length.
- Bolt circle and pilot
- Confirm the bolt circle matches your flexplate and the pilot fits the crank Some transmissions came with more than one bolt circle.
- Lockup
- Lockup-capable transmissions need a lockup converter for highway cruising, and the clutch must hold your torque Non-lockup converters in overdrive transmissions run hot and hurt economy.
- Cooling
- Add a transmission cooler with any higher-stall converter Converter slip turns into heat, which kills fluid and clutches.
Brands that matter
- TCI: Wide range of street and strip converters.
- B&M: Street-oriented converters.
- Circle D: Custom-built converters for LS and modern applications.
- Yank: Custom converters spec'd to the combination.
- FTI Performance: Custom converters for modern GM and Ford automatics.
- Precision Industries: Billet race and street converters.
What to avoid
- Picking stall from a forum number without matching it to your combination
- High-stall converters without added cooling
- Installing without confirming full engagement into the pump
Questions
Why does my converter stall lower than advertised?
Advertised stall assumes a certain engine torque; a milder engine will not push the converter to that speed.