Quick Answer: How Do I Check The Stall Speed On A Torque Converter?

What is the stall speed of a stock torque converter?

But both the Ford and Dodge torque converters stall between 2,000 and 2,500 RPM – so with a heavy load, the torque converter won’t start turning the rear wheels until well beyond the engine’s torque peak..

How do I know what stall converter I have?

The only way to know the true stall speed of a converter is with a transbrake however a flash stall can give a rough idea of what it is. From a dead stop, mash the throttle and watch the tach. The tach will jump up to an rpm before the car really starts to move.

What does a 2500 stall converter do?

A 2,500 stall speed doesn’t mean you need to rev the motor to 2,500 rpm for the vehicle to move.” What it does mean in this case is 2,500 rpm is the limit at which the converter will hold back the engine speed if transmission output is prohibited.

Is a 3000 stall Streetable?

You don’t want too much stall, especially in a street car. This means the converter will be slipping the whole time, which creates heat. … engine will stall a rated 3,000 stall at about 2,800 rpm, whereas a 600 lb/ft. engine will make the same converter stall at approximately 3,500-3,600.

What does stall speed on a torque converter mean?

Torque converter stall speed is the maximum amount of engine RPM that can be achieved in an automatic transmission-equipped vehicle while the transmission is in a forward operating range without generating any driveshaft motion.

Do you need a tune for a stall converter?

Yes a tune might be needed. Depending on the stall, if it’s loose enough it usually triggers the engine misfire codes because the computer thinks the trans is slipping. So you have to go in and desensitize the engine misfire tables.

How does gear ratio affect stall speed?

These changes are made to increase horsepower and engine torque and they will affect the stall speed of the engine too. Transmission gearing will also be a factor in your stall speed. The rule is, the numerically lower the gear ratio is in the transmission, the higher the stall speed that would be required.

How do you measure the stall speed of a torque converter?

Put the pedal to the metal While pressing on the brake pedal, press the accelerator to the floor for two to three seconds. Don’t exceed five seconds, or you risk blowing out the transmission. The RPM the engine maxes out at is the stall speed.

What is a stall speed converter?

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.

What are the signs of a failing torque converter?

Symptoms of Torque Converter ProblemsSlipping. A torque converter can slip out of gear or delay a shift its fin or bearing is damaged. … Overheating. … Contaminated Transmission Fluid. … Shuddering. … Increased Stall Speed. … Unusual Sounds.

What is the typical maximum pressure drop allowed during shifts?

1) The pressure should not drop more than 15 psi (103 kPa) between shifts. If the pressure drop between shifts was greater than 15 psi, an internal leak at a servo or clutch seal is indicated.

How do I check stall speed?

While holding the brake pedal, press and hold the throttle pedal to the floor for 2 or 3 seconds. Always check with the manufacturer’s recommendations, because the test places stress on the transmission. Never exceed 5 seconds. Compare the reading (stall speed) on the tachometer to the manufacturer’s specifications.