An alternator typically takes about 1 HP (horse power) for every 25 amps of power generated. So, a 100 amp alternator will require about 4 HP at full output. Most alternators do not operate at full output for very long.Furthermore, does an alternator increase horsepower?
“On some applications, a high-amp alternator can actually add horsepower to your engine's performance.” Sure, it's nominal, but, when it comes to horsepower, every bit helps. “Most alternators are only about 75 percent efficient.”
Also Know, how many rpm does a car alternator need? An alternator has a normal range of operation. Most alternators need to spin at about 2,400 rpm at idle, have their maximum output above 6,000 rpm, and should never exceed 18,000 rpm.
Simply so, how much torque does a car alternator need?
Just for a point of reference, a standard automotive alternator puts out 60A @ 14V = 840W. 1hp = 746W, so it takes over one hp to turn your car's alternator to full output, not counting losses in heat or the belts
Can you run an alternator with an electric motor?
You can use a DC motor to drive an alternator in order to invert a DC energy supply into AC. But you would be setting up a system with needless mechanical complexity. It would not be economical to needlessly drive an alternator by an electric motor. Magnetic force in an alternator causes a mechanical resistance.
What parts increase horsepower?
If you want to increase the horsepower, you've essentially got to find ways to move more air in a greater volume through your engine. - Installing a High-Performance Cold Air Intake to increase horsepower.
- Installing a High-Flow air filter and intake.
- High Performance Exhaust System.
- Supercharger.
- Turbocharger.
- Nitrous.
Is it OK to use a higher amp alternator?
Will a higher amperage alternator cause any problems with my stock electrical system? A higher amperage alternator will not pose any problems to the vehicle's electrical system. Amperage will flow to only those components that can use the energy and supply as much amperage as the component can consume.Does spark plugs increase horsepower?
In short, yes, in some situations spark plugs can increase horsepower. The theory behind spark plugs increasing horsepower is that by providing more spark to the firing tip of the spark plug, it will (and does) combust more fuel.Does new alternator make car faster?
Yes, it was true then, and it's true now. The battery will charge faster if you rev the engine faster. And the faster the alternator turns, the more electricity it produces to run all the electrical stuff in the car -- and recharge the battery.What does a bigger alternator do?
A general high output alternator will provide more amperage, and in other words more power, but it will also increase the engine speed, proving itself capable of generating more power, but not being very useful in the long run.What is the minimum RPM of a 12v car alternator?
The minimum RPM is highly dependent on the specification of alternator. But a basic alternator will produce charging current anything above 2000 rpm. We can safely say, an economy car will idle around 750 rpm, a sports car around 1250 rpm and a race car around 2000 rpm.How fast does an alternator turn?
Typically, alternators have their full output rated at 6000 RPM but can continue to spin up to 12,000 RPM or more without any additional increase in output. The speed of an alternator is different for different type of car. The speed of an alternator depends on the speed of the engine.Can a car alternator power a house?
You can use car alternators to power a home. One method of doing this is to use the alternators to recharge storage batteries. These batteries could then be used to power an inverter, which would produce the AC voltage needed to run the house. As the gas engine runs, it will recharge the battery.How is alternator torque calculated?
torque for an alternator or any electromagnetic type devicde depends on the CURENT flowing through the coils, and the "cog" torque constant of the alternator. M=I*km+Mi: Torque = current *torque constant of the motor +"Cog" torque. not perfect, but should give you a starting place.Can you turn alternator by hand?
How freely should an alternator pulley/bearing rotate? If you are referring to a standard automotive alternator that is unplugged and does not have a belt coupling it with the rest of the engine, then quite freely. Freely enough, in fact, to continue spinning for a bit after being spun by hand.How much drag does an alternator produce?
there is windage drag from the alternator spinning even when not loaded. 1 Hp = 748 Watts.Do alternators charge at idle?
Yes, the alternator does charge the battery while the car is idling - regardless of the load on the battery. However, if your electrical use load (radio, lights, fan, etc) exceeds the amount of charge the battery is receiving from the alternator, you will end up with a discharged battery at some point.How much RPM is needed to generate electricity?
The frequency output of a generator depends on a fixed engine speed. To produce 60 Hz electricity, most engines operate at 1800 or 3600 RPM. Each has its advantages and drawbacks. 1800 RPM, four pole sets are the most common and least expensive in large generators.How do I calculate my alternator rpm?
1 Answer. You are correct. The number of poles is the sum of the north plus south poles. Speed(RPM) = Frequency(Hz) X 120 / Poles = 100 X 120 / 12 = 1000 RPM.Will a car alternator work as a wind generator?
DIY Wind Turbine. Turn a car alternator into alternative energy by building this cheap and easy homemade wind generator. If you can turn a wrench and operate an electric drill, you can build this simple generator in two days. You can use any vehicle alternator with a built-in voltage regulator.Should I get a high output alternator?
High output alternator If your sound system demands more power than your stock alternator can supply, then you will benefit by upgrading to a higher output alternator. A 250 or 300 ampere aftermarket high output alternator should provide enough power for all your car's systems and your high-powered stereo too.What is the maximum output of an alternator?
The alternator is designed to keep the battery charged to at least 12.55 volts, with a maximum of approximately 14.5 volts. The amperage output is usually listed as the maximum output of the alternator. 
