Table of Contents

## How do you know if net torque is zero?

If the net torque on a rotatable object is zero then it will be in rotational equilibrium and not able to acquire angular acceleration.

**How is RPM related to torque?**

Mathematically, horsepower equals torque multiplied by rpm. H = T x rpm/5252, where H is horsepower, T is pound-feet, rpm is how fast the engine is spinning, and 5252 is a constant that makes the units jibe. So, to make more power an engine needs to generate more torque, operate at higher rpm, or both.

**Is torque directly proportional to RPM?**

Torque is directly proportional to the radius of rotation. Ans. True. Since torque is the product of force and radius of rotation, increasing this radius will also increase the resulting torque.

### How many rpm is 1 HP?

When the 1HP pump is operating in the optimal range (approx. 2700 rpm) the 3600 RPM motor is still be producing 1.5 ft/lbs of torque, while the 1800 RPM motor’s output will be somewhere between 1.5 and 3 ft/lbs.

**Does higher rpm mean more torque?**

Higher revolutions per minute equate to more fuel burnt in the same amount of time and more power produced. Because of this, most consider higher RPMs racing RPMs. Running at lower RPMs equates to higher torque and thus lower horsepower, while making higher RPM power outputs less torque and higher top horsepower.

**Is high torque at low rpm good?**

Because there is generally a limit on how fast you can spin an engine, having higher torque allows for greater horsepower at lower rpms. This is also why people talk about low-end torque being important for better power at slower speeds.

#### Which is better hp or torque?

In physics, power is defined as the rate at which something does work. For cars, horsepower translates into speed. So if you want to go faster, and get up to speed quicker, you need more horsepower. Torque, on the other hand, is the expression of a rotational or twisting force.

**What matters most for acceleration?**

Gears magnify torque ” hence the acceleration available in first gear. Another way to validate that it’s power and not torque that matters most for acceleration is to look at the cars that have the highest acceleration, which are the F1 cars. And guess what? Low torque, high horsepower.

**Which Gear has more power?**

The gears determine the amount of power available from the engine. First gear provides the most pulling power but the least potential for speed, whilst fifth gear which provides the least pulling power allows the greatest range of speed.

## How do I make my car accelerate faster?

Faster acceleration is a lot more than adding power though, so it’s time to read and learn with this handy guide.

- MORE POWER.
- GEAR/DIFF RATIOS.
- BETTER TYRES.
- UPGRADE YOUR CLUTCH.
- GET AN LSD.
- WEIGHT DISTRIBUTION.
- UPGRADE YOUR SUSPENSION.
- REDUCE WEIGHT.

**What are two ways to increase torque?**

Torque can be increased in two ways: 1) by increasing the moment arm or 2) increasing the perpendicular force applied to the moment arm. The opposite is true for decreasing torque. If an object is at rest the torques on the object are balanced (they cancel out) and sum of those torques is zero.

**How do you increase low end torque?**

How to Increase Low End Torque?

- Change the flowing exhausts and intake systems. Replace these components with a new one if you find any damage.
- Install some high-quality spark plugs.
- Replace the ignition lead with a better one.
- Retune the air/fuel ratio (AFR) and the ignition timing maps.

### How much torque does a turbo add?

With only 6 to 8 pounds of boost pressure, a turbo can increase power output 15 to 25 percent or more over a naturally aspirated engine. Consequently, a turbo four-cylinder engine be used in place of a larger V6, and a turbo V6 can replace a larger V8 with no loss of performance.

**Is a 4 cylinder turbo faster than a V6?**

V6s have more cylinders and more displacement, which translates into more air and bigger explosions. Put those together and you get more power. However, the V6 is worse on fuel and is heavier than a turbo four. The V6 doesn’t have to deal with turbo lag, but it is also highly dependent on a refined transmission.

**Do turbos shorten engine life?**

Turbos Reduce the Lifespan of an Engine One of the most common turbo myths is that running boost will damage your engine over time. However, a properly implemented turbo pushing enough PSI through a motor to produce respectable levels of power won’t strain a motor any more than idling in traffic will.

#### How much power do twin turbos add?

Also known as forced induction parts, both of these components force air into your car’s engine which improves horsepower and torque. A turbocharger works with the exhaust system and can potentially give you gains of 70-150 horsepower.