Useful tips

What is the stall speed of a stock torque converter?

What is the stall speed of a stock torque converter?

around 1,800-2,000 rpm
Stock torque converters generally have a stall speed around 1,800-2,000 rpm. Higher stall speeds become necessary when horsepower and torque happen at higher rpm ranges.

What’s the stall speed of a 700R4 torque converter?

This is a 10 inch torque converter with a 12 inch lock-up carbon fiber clutch rated up to 700 horse power. Can be ordered in stall speeds of 2000 to 4000 RPM. We stock 2000, 2600, 2800, 3000 and 3200. Lower 60 foot times and improved quarter mile times, an average of 1/2 second reduction!

How big is a 700R4 torque converter clutch?

Fits 700R4, 200-4R and non-LS1 4L60E transmissions. This is a 10 inch torque converter with a 12 inch lock-up carbon fiber clutch rated up to 700 horse power. Can be ordered in stall speeds of 2000 to 4000 RPM.

How can I find out my torque converter stall speed?

Simply install a tach and vacuum gage .. Start the engine ,, Hold the brake & rev the engine “briefly” not to heat up the tranny . The point vacuum reaches 0 is the stall . The tach will tell you what RPM it occured . ^ That would give you your converter stall speed with your engine, at a specific vacuum.

How big is the Raptor lock up torque converter?

Power Raptor Lock-up torque converter 700r4 2004r. Fits 700R4, 200-4R and non-LS1 4L60E transmissions. This is a 10 inch torque converter with a 12 inch lock-up carbon fiber clutch rated up to 700 horse power. Can be ordered in stall speeds of 2000 to 4000 RPM.

What is a good stall for a torque converter?

Stock torque converters generally have a stall speed around 1,800-2,000 rpm. Higher stall speeds become necessary when horsepower and torque happen at higher rpm ranges. You want stall speed and maximum engine torque to happen around the same rpm range.

What is increased stall speed on a torque converter?

What is Stall Speed? 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.

How do I choose a torque converter stall speed?

When choosing the stall speed that is right for your application, a rule of thumb is that the advertised stall speed will need to be at least 500 rpm higher than the beginning of the camshaft’s powerband. All aftermarket camshafts are delivered with a recommended RPM operating range.

What are the symptoms of a failing torque converter?

When the torque converter starts malfunctioning, you may feel shuddering and even slipping in overdrive. You usually notice your car shuddering because it feels like it’s vibrating. Your car will vibrate even when you’re not going very fast. The shuddering makes the car lag and is very noticeable.

Does a torque converter add horsepower?

An automatic transmission in general has a way of soaking up horsepower, but the torque converter can take a potent combination and turn it into a pig when the rubber meets the road. And while stall speed is important for a good launch, it’s also a place for horsepower to swirl down the drain.

What is the advantage of a high stall torque converter?

A higher stall torque converter will let your car accelerate better because the car will be taking off at the rpm range where it is making the most power.

What is the difference between a torque converter and a stall converter?

A torque converter consists of three major internal components: the pump, turbine, and stator, as well as transmission fluid. A torque converter has three stages of operation: stall, acceleration, and coupling. Stall is when the transmission is in gear, but the brakes prevent the car from moving.

Do you need high stall torque converter?

A higher stall torque converter will let your car accelerate better because the car will be taking off at the rpm range where it is making the most power. But you don’t want a stall speed that is too high either. Camshafts can affect performance by altering your torque curve.

What are the symptoms of a bad torque converter clutch solenoid?

Symptoms of Torque Converter Problems

  1. Slipping. A torque converter can slip out of gear or delay a shift its fin or bearing is damaged.
  2. Overheating.
  3. Contaminated Transmission Fluid.
  4. Shuddering.
  5. Increased Stall Speed.
  6. Unusual Sounds.

How does a high stall torque converter work?

The clutch locks the stator to the stator support to prevent the reversal of rotation. Basic Converter Operation: The torque converter is designed so the fluid flows from the impeller to the turbine then back to the impeller through the stator. This flow produces a maximum torque increase of 2:1 when the turbine is stalled.

When does torque multiplication of a converter taper off?

The converter torque multiplication gradually tapers off as the turbine speed approaches impeller speed and becomes 1:1 when the turbine is being driven at 9/10 impeller speed. This is called the point of coupling.

Why do you need a torque converter in a car?

The basic purpose of installing a modified torque converter is to allow the engine (RPM) to increase to where the engine is making greater power before driving the wheels, thus allowing the vehicle to accelerate from a standing start much quicker.