If you get a smaller pulley will you need a smaller belt?

it will improve your idle power since the smaller pully will do far many more rpms because of its small diameter. not really you will need a another belt because your car has the tensioner belt that adjust depending on the belt length and tightens.

1. What does a smaller pulley do?
2. Can I put a smaller pulley on my alternator?
3. Can I use a shorter serpentine belt?
4. Does a bigger pulley increase speed?
5. Does the size of the pulley matter?
6. What size pulleys do I need?
7. What is alternator pulley ratio?
8. What is the purpose of V pulley in charging system?
9. What is the smallest alternator?
10. Does a serpentine belt stretch?
11. Which pulley spins faster?
12. What is the best pulley ratio?
13. How does pulley size affect RPM?

What does a smaller pulley do?

If a smaller pulley turns a larger one, the larger one will turn slower, but with more power available at the shaft. If a bigger pulley turns a smaller one, the smaller one will turn much faster than the bigger one but with less power available at the shaft.

Can I put a smaller pulley on my alternator?

In order to boost output at lower RPM, it is beneficial to spin the alternator faster by using a slightly smaller pulley to accomplish this. In most cases you should be able to use the alternator with the smaller pulley without having to use a smaller belt.

Can I use a shorter serpentine belt?

Belts can be tricky, so we usually recommend buying two or three different slightly shorter belts so that you can test fit each one. Most vehicles have a spring tensioner that puts tension on the serpentine belt.

Does a bigger pulley increase speed?

Increasing Speed: When the powered pulley is larger than the non-powered pulley then the speed of the non-powered pulley is higher in proportion to the circumferences of the pulleys. ... The non-powered pulley will move slower but it will be able to generate twice as much torque.

Does the size of the pulley matter?

A larger diameter pulley wheel (aka sheave) is technically more efficient than a smaller diameter pulley. But it's a trade off: a larger pulley has increased bulk, weight and cost. For example, in a 1:1 haul, you gain about 7% efficiency going from a 1.5” pulley to a 3.75” pulley.

What size pulleys do I need?

There are complicated formulas for determining pulley ratios but in generic, layman terms, simply divide the driven component (pump) by RPM, the driver component (motor or engine) rated by RPM to get the required ratio. In the example below, the pump RPM is 1070, for full output, while the motor is 1750 RPM.

What is alternator pulley ratio?

The pulley ratio is the ratio between the outer diameters of the engine drive pulley and the alternator pulley.

What is the purpose of V pulley in charging system?

Whether it is a single V-type fan belt used in a system of different fan belts or a single serpentine drive belt, the alternator pulley allows the belt to spin the alternator, thereby providing current to charge the battery. The alternator pulley attaches to the alternator's main shaft with a nut and washer.

What is the smallest alternator?

LONG BEACH, CA — Denso Corporation has developed alternators that provide output currents of 165, 180, 200 and 220 amps; higher than the company's traditional alternators, which supply up to 150 amps. These new products, and all of Denso alternators, are the smallest and lightest in the world for their output.

Does a serpentine belt stretch?

Serpentine belts stretch with age and use; as time goes on, the rubber becomes dryer and less pliable making cracking more prevalent. However, cracking can also be caused by a defective tensioner. ... If a belt starts slipping, the tensioner should always be checked to see if it is functioning properly.

Which pulley spins faster?

A larger pulley turning a smaller pulley results in the smaller one turning faster but with less shaft power. For example, a truck in high gear would have a slower turning engine but faster turning wheels, resulting in a faster truck.

What is the best pulley ratio?

A 2:1 ratio gives the best overall benefits without sacrificing in other areas. 4:1 can be good for speed work but has the downside of making a 200 pound weight stack only equal to 50 pounds of resistance, a problem if you intend to do lat pulldowns for example.

How does pulley size affect RPM?

By changing the diameter of the pulley wheels, speed can be changed. A smaller pulley turning a larger pulley results in the larger one moving more slowly but with more shaft power.