Can a torque converter be too high or too low?
If you over-estimate your peak torque output, you’ll select a converter with too low of a stall speed. Problem: My vehicle has too high of a stall and seems slower than it used to. Solution #1: In most cases, the rules above apply in reverse for converters with too high of a stall.
What should the stall speed be for a torque converter?
Take a look at your engine and torque output and determine if you’ve got the right stall speed. According to B&M, the stall speed should be rated at about 500-750 rpm under your engine’s peak torque rpm. If you don’t know your exact peak torque rpm, be conservative.
What should the gear ratio be on a torque converter?
Your gear ratio helps determine how much energy it takes to move the vehicle. The numerically higher the gear ratio, the lower the flash stall. Typically, at least a 3.42 ratio is suggested with higher stall speeds so you may need to move to a different stall speed converter, depending on your application.
When do you need a torque converter for drag racing?
In a high performance application, particularly a car used for drag racing, you want your torque converter to stall at the RPM where your engine has its peak torque output, giving you the hardest launch possible.There are also two types of stall; the foot brake stall and the flash stall.
Why are torque converters all about the stall?
Torque Converters are all about the stall…you want your torque converter to stall at the RPM where your engine has its peak torque output, giving you the hardest launch possible. Torque converters are all about the stall.
How to test a torque converter without uninstalling it?
Remember to not release the brake pedal. With one foot on the brake pedal, press the accelerator all the way for 2-3 seconds with the other foot. Be careful not the exceed 5 seconds or the transmission could blow out.The stall speed is the RPM the engine maxes out at.