APPLICATION GUIDE

Use the following information as a guide only. When in doubt call 1-800-443-2226. We will be happy to assist in your application needs.

Stall Speed:
The stall speed of a torque converter is usually determined in a particular vehicle by placing the transmission in a forward gear range, applying the brakes, and depressing the throttle until the engine can no longer increase RPM. If the brakes cannot keep the drive-wheels from turning, the test is not valid. This test should not be continued for more than 5 to 10 seconds. Over-heating can occur. The RPM developed by the engine is considered to be approximately 80 percent of the actual stall of the torque converter in the application. Many factors play a part in this test, including the engine torque and condition.

Flash Stall:
Flash stall is the instant maximum RPM developed by the engine as: a) The accelerator is fully depressed with the vehicle in a forward gear range. b) The vehicle brakes are not applied and the vehicle begins movement. The tach reading will jump to a high reading, drop to a slightly lower reading, then increase as the engine RPM and vehicle speed increases.

Guidelines:
1. Convertor stall speed above 2800 RPM is not recommended for street use. Excessive RPM for take-off and over-heating can occur in normal driving conditions. External transmission coolers are highly recommended. 2. For acceptable performance, axle ratios should be 3:42 to 1 or greater. Ratios in the high "2's" and low "3's" do not perform as desired with converters with stall speeds of 2000 RPM or greater. 3. Stall converters of 3000 RPM or greater are not recommended for use with engines with "advertised" cam duration less than 292. 4. Vehicles equipped with transmission brakes, nitrous, turbo-chargers, or blowers require stall converters equipped with special features.