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Will a new torque converter give me more power?

Author

William Rodriguez

Published Jan 06, 2026

You will not be gaining any horsepower, rather you will be recovering horsepower that would have been normally lost with your stock TC. In addition, a stronger TC will have a higher stall speed. This will allow better launches when you are brake torquing or flashing the TC.

Do torque converters give more power?

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.

What will upgrading torque converter do?

Switching to a higher stall-speed torque converter can provide the benefit of increased launch RPM and better low-speed acceleration. Once your vehicle is up and moving, though, a different converter will have little effect.

Is a bigger torque converter better?

Larger-diameter converters are usually more efficient and deliver less slippage, while smaller-diameter converters offer more stall speed and more slippage. Vehicle weight is another major factor that should be considered when selecting a converter.

How much HP does a stall converter add?

The reason a stall converter works is simple; an engine at 1,200 RPM is only making about 80 or so horsepower (on average), but at 2,500 RPM it could be making 150 to 200 HP, and obviously trying to get a car moving using 150-200 HP is going to be much easier than one trying to launch at 80 HP or so.

39 related questions found

Can you daily drive with a stall converter?

However, a stall converter will affect your daily driving by lowering your fuel economy substantially. This makes it a poor option if you're using the car for commuting. The reason that a stall converter boosts your acceleration is that it doesn't allow the tires to break loose until you reach a higher RPM.

Is a 3000 stall Streetable?

Is a 3000 stall Streetable? Most of the “daily driven” street cars we build have anything from 2,400 on up to a 3,500 stall converters in them and they are very streetable with no problems. Just because a stall converter may have a 3,000 RPM rated stall does NOT mean the car won't move until it revs to 3,000 RPM.

Should I get a new torque converter?

6. Unusual Sounds. A bad torque converter will emit noises, and that is an obvious sign that it needs to be checked. Therefore, if you hear a whirring or clicking sound, either from the damaged bearings or broken turbine fin, you need a replacement.

Can you upgrade your torque converter?

There are other modifications that can be made to improve the performance of an automatic transmission, but swapping torque converters is by far the easiest and packs the most bang for the buck. As a rule, stock torque converters are too large in diameter and too heavy.

How do I choose the right torque converter?

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.

How do I increase the stall speed on my torque converter?

A large cubic-inch engine will raise a given converter's stall speed. Engines that produce more low-end torque cause a given converter to stall at a higher rpm. A heavy car with large diameter tires will raise effective stall speed as installed in the vehicle.

What are the disadvantages of torque converter?

Torque converters are, therefore, less fuel efficient than a manual gearbox or a CVT. Pros: Refined, smooth, reliable; more responsive than a CVT. Cons: Not the most fuel efficient; expensive. Cars offered with Torque Converter: Hyundai Creta AT, Maruti Suzuki Ciaz AT, etc.

What are the advantages of a stall converter?

A stall converter is a bit more gentle on those parts because of the "slip" it has. Stall converters allow the car to launch in it's torque curve and get off the line much harder than a car that has much less stall.

Is a torque converter better than a clutch?

Or to put it more technically, Torque converters are useful when you require more torque (for example: driving uphill) and will give a better take-off. Whereas, the clutch will give a higher power transmission efficiency at higher rpm.

Which is better torque converter or CVT?

Modern twin-clutch systems use seven gears, torque-converter autos are pushing as high as nine and CVTs can produce a near-infinite number of ratios, meaning they offer the best fuel economy. With shift speeds that embarrass the fastest manual driver, automatics can also accelerate faster.

What is the stall speed of a stock Turbo 350 torque converter?

Stock torque converters generally have a stall speed around 1,800-2,000 rpm.

How can I make my automatic transmission stronger?

There are 6 ways to improve automatic transmission performance and reliability. These are servicing the transmission, changing driving habits, driving with lower gears when loaded, maintaining engine performance, having proper alignment of tires, and having the correct tire size.

Can you make an automatic transmission faster?

Can automatic cars be upgraded to go fast? Yes, you can make basic upgrades to make your car faster with better response from the the engine and transmission. Cars today are controlled by electronics which means that easy and fast upgrades are now available. Many upgrades can be completed in as little as 15 min.

Can a torque converter cause loss of power?

poor vehicle performance: a bad torque converter can cause poor acceleration. lack of power at lower speeds is usually caused by the stator spinning incorrectly, resulting in lack of torque.

Can a bad torque converter cause engine to stall?

Issues with the Transmission

With an automatic transmission, a torque converter is used to manage the transmission fluid and keep the engine running while at a stop. If the torque converter fails, the engine can stall. There are several reasons why the converter could fail, such as overheating or dirty fluid.

Can you replace a torque converter without removing the transmission?

Can You Replace A Torque Converter Without Removing The Transmission? Although the torque converter itself is relatively inexpensive (between $150 and $350, depending on the vehicle), replacing it requires removing the transmission and removing it for the new one to take place.

What is a 4500 stall converter?

Stall means when the car is on the starting line, (with say a 4,500 RPM stall converter), and the trans brake is on, (which locks the transmission in first and reverse at the same time), and you hit full throttle, the engine will wind-up to 4,500 RPM with the car just sitting there, so when you slip your finger off the ...

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.

Do you need a stall converter with a cam?

If you build a 500-horsepower engine with a radical cam, then you will need a higher stall converter to allow the vehicle to idle.

Does torque converter affect acceleration?

By redirecting fluid flow, the converter multiplies the torque produced by the engine enough to propel a vehicle down the road. Most converters multiply torque by a ratio of at least 2:1, improving vehicle acceleration substantially.