When does a torque converter stall the engine?

Stall speed is the speed at which the converter holds back or limits the engine speed if the transmission output is prohibited. When your torque converter prevents the power transfer from your engine to your transmission, it increases the engine’s RPM stalls. For example, when you press down on your gas pedal,…

Why is my torque converter not working properly?

The RPM (revolutions per minute) measured once the car’s engine maxes out is its stall speed. If the stall speed measured is lower than what is specified for your torque converter, then it may be the beginning of its end. On the other hand, if the stall speed is higher than expected, it may be because the transmission is beginning to slip.

What should the stall speed be on a stall converter?

4- Order your converter after you know all of the engine and driveline specs that will affect the stall speed design. As a general rule for street use, obtain a stall speed with a minimum of 500 rpm into the powerband.

When to use a torque converter in a street car?

If choosing a torque converter for use in a street car, you might want to select a torque converter with a stall speed that is below the engine RPM at 70 mph, since this is where your engine will spend a lot of its time. An exception to this theory is if the transmission/converter is equipped with a lock-up feature.

What happens when you use a high stall converter?

DRIVABILITY of a vehicle with a higher stall speed can be substantially reduced with a poorly designed torque converter. Excessive heat generating slippage and rpm flair up can make street driving miserable and costly with a converter that is too loose.

When did BTE start making high stall torque converters?

We’ve been building specialized high and low stall torque converters for racing and other uses, and have been since 1961. BTE’s options of street/strip torque converters or full racing converters use newly designed and manufactured components. This allows our torque converters to maintain consistency, withstand heat, pressure and torque.

Why does my Dodge Caravan stall all the time?

One of the most common issues your Dodge Caravan is likely to develop is a stalling problem. The most challenging part of diagnosing a stalling problem is reproducing the conditions that led to the stall in the first place. Stalls can happen at any time, and it can be incredibly jarring when it does happen.

Why do you need a proper stall speed for towing?

In towing, the proper stall speed will help your engine pass more power to your transmission, causing your tow capacity to increase. When you are selecting the right stall speed for your vehicle, be sure to match the engine’s peak torque, torque curve and vehicle weight. Peak Torque – The maximum torque your engine can exert at a certain RPM.

What happens when you over estimate your stall speed?

If you over estimate, your stall speed will be lower than intended, which will reduce your torque converter’s performance. If you are unsure about these modifications, the experts at RevMax Performance Torque Converters can help.

When does a torque converter stall the engine?