How do you convert horsepower to PSI?

Asked By: Eider Reali | Last Updated: 31st January, 2020
Category: automotive road side assistance
4.1/5 (2,992 Views . 24 Votes)
Multiply that gallons per minute by the amount in psi. For the example, the amount in psi is 400. That multiplied by 20 gpm equals 8,000. Divide that number by 1,714 to obtain the hydraulic horsepower.

Click to see full answer


Herein, how do you calculate horsepower from flow and pressure?

For every 1 hp of drive, the equivalent of 1 gpm @ 1500 psi can be produced.

Contact Us.

Basic Fluid Power Formulas / Hydraulics / Pneumatics
Variable Word Formula w/ Units Simplified Formula
Cylinder Speed - v (Feet / sec.) = (231 x Flow Rate (gpm)) / (12 x 60 x Area) v = (0.3208 x gpm) / A

Secondly, how much horsepower do you need to run a hydraulic pump? 1 HP is required for each 1 GPM at 1500 PSI or any multiple of 1500 such as 3 GPM at 500 PSI, 2 GPM at 750 PSI, 1/2 GPM at 3000 PSI, etc. Another handy rule-of-thumb is that it takes about 5% of the pump maximum rated HP to drive the pump when unloaded and pressure is very low.

Correspondingly, how much HP will 5 psi add?

air pressure is 14.7 psi. 5 lb boost makes that 19.7, a 34% increase. BEst case scenario is that you would gain 34% horsepower.

How do you calculate PSI?

Question: - “How do you find pounds per square inch (psi)?” Divide the pounds of perpendicular force by the square inches of area on which it is acting to get the pressure or stress in pounds per square inch.

39 Related Question Answers Found

How is horsepower calculated?

To calculate the horsepower of a car, start by finding the engine's torque value and engine speed in the owner's manual. Multiply the torque by the engine speed, and then divide that number by 5252. The answer is the horsepower for the car's engine.

What is the capacity of the pump?

Pump capacity is a term used to describe the maximum flow rate through a pump at its designed conditions. It is a measurement usually given in gallons per minute (gpm) or cubic meters per hour (m3/h).

What does torque mean?

Torque is the amount of “turning power” you have, in the same way that you turn a wrench. 369 foot-pounds means that if you had a wrench that was 1 foot long, and applied a force of 369 pounds directly perpendicular to that wrench, you would get 369 foot-pounds of torque.

How many gallons per minute does a 10 hp pump?

Step 1: Determine the MINIMUM FLOW RATE.
Pool Size (US Gallons) Turnover (Hours) Minimum Flow Rate
35,000 8 Hours 73 GPM
35,000 10 Hours 58 GPM
24,000 8 Hours 50 GPM
24,000 10 Hours 40 GPM

What is hydraulic horsepower?


Hydraulic horsepower (hhp) gpm x psi / 1715 = hydraulic horsepower. is the horsepower equivalent of “lifting” a continuous volume rate of fluid to the height in ft represented by the pressure involved (as if a tall, open overflowing stand-pipe were connected to measure the pressure).

What does 1714 mean?

It is commonly calculated with the equation HHP=P*Q/1714, where P stands for pressure in pounds per square in., Q stands for flow rate in gallons per minute, and 1714 is a conversion factor necessary to yield HHP in terms of horsepower.

Is 15 psi a lot of boost?

Well-Known Member. Racey said: 15 psi would double the potential hp of the motor, as atmospheric air pressure is ~15psi, so adding an additional 15psi of boost is actually 30psi of Absolute pressure, twice the air.

Is 5 psi a lot?

If your vehicle's tires are underinflated by only 5 psi (pounds per square inch) it could lead to tire failure. You can also experience a loss of steering precision and cornering stability. While 5 psi doesn't seem excessively low, remember, 5 psi is usually about 20% of the tire's recommended pressure.

How much HP does a turbo add?

Turbochargers Increase HP. Hanging a turbo on a small engine allows a little engine to breathe big. 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. Turbos are back.

How much is too much boost?


Increasing boost (within reason) will force more air into the engine, so more fuel can be added to increase the power. So in general, if you add more boost and have an engine tuned to suit will give you more power. Too much boost can cause turbo or engine failure.

How much HP is a pound of boost?

Every 15psi of boost will double your hp*. So basically if you started with 250 hp and added 7.5 psi of boost you should have roughly 375 hp. If you add 15 psi of boost you'd be at 500 hp.

How many lbs of boost is safe?

If you have a stock engine, with a compressor that is factory set to produce no more than twenty pounds of boost, you shouldn't modify the system to make it produce much more than 25 pounds of boost. And increase of 5 pounds over stock is probably the limit you should go by.

Does Turbo increase torque?

Turbo engines can make the same power as a normally-aspirated engine while using less fuel. Hence why Ford, for example, has replaced the old 1.6-litre petrol engine with a new 1.0-litre turbo – it makes the same power but uses much less fuel. Turbos also give engines more torque – often lower down in the rev range.

What is a pound of boost?

Pounds of boost” is the point in which an engine has reached the threshold of negative vacuum pressure turns into positive vacuum pressure in the intake manifold. This allows the combustion cycle to perform much quicker as the engine can take in the air quicker. More air+more fuel = faster combustion cycle.

How many feet are in a PSI?


The relationship between PSI and feet of head is that 2.31 feet of head = 1 PSI. Translated, that means that a column of water that's 1-inch square and 2.31 feet tall will weigh 1 pound. Or, one-foot column of water that's 1-inch square weighs . 433 pounds.

How many feet of water are in a PSI?

The Real Life Functions of Linear Equations
You can work this out with a simple rule: 1 foot of water creates 0.433 psi of pressure, and it takes 2.31 feet of water to create 1 psi of pressure.

What does ft head mean?

In simple terms, the mathematical constant 2.31 converts a unit of energy against gravity into a unit of force against any other area. This constant converts a foot of head of water into pressure: Head in feet of water divided by 2.31 equals pressure in psi, and pressure in psi times 2.31 equals head in feet.