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bhp vs whp
Industry knowledge

BHP Vs WHP: The Definitions And Differences

By Philipp Meister

0

Share

BHP Vs WHP: The Definitions And Differences

5 (100%) 2 votes


A horsepower is a unit for measuring power and in the automotive world, it denotes to the power that the engine generates with accessories. The two common horsepower types related to automobiles are brake horsepower (BHP) and wheel horsepower (WHP). But, what do these terms mean? Let’s delve into a discussion about BHP vs WHP including their definitions and the differences between them.

Contents

  • BHP vs WHP: The Definitions
  • BHP vs WHP: The Rules For Measuring The Units
  • The Differences Between BHP vs WHP
  • Wrapping up

BHP vs WHP: The Definitions

Brake horsepower refers to the power generated and measured at the crankshaft just outside the engine . It does not count the power loss caused by the drivetrain and gearbox. The BHP is teh aftermath of aplying a brake torque to the engine. Some people call it Crank or Flywheel horsepower but these terms are not quite similar.

brake horsepower vs wheel horsepower
BHP and WHP are different.

Wheel horsepower is measured at the wheels. It refers to the actual power available for the acceleration of the car minus the power loss in the drivetrain and all types of parasitic losses including power draining by the alternator, fans, pumps, muffled exhaust, and some other accessories. In fact, it is the true horsepower that goes into the driving wheels.

BHP vs WHP: The Rules For Measuring The Units

The standards for calculating BHP and WHP are separate from each other. The DIN 70020 was the standard in Europe for measuring the brake horsepower. It tests the power of an engine that has connections to all ancillaries and exhaust system that a vehicle has.

According to the older American standard, BHP is the power of an engine minus the power of the water pump, alternator, and auxiliary components including muffled exhaust system, power steering pump, and other related parts. But, the new American standard counts the engine power along with all the ancillary accessories. For this reason, the BHP of the same car will be the same measured in European and new American standards.

          SEE MORE :

  • The Differences between Horsepower and Torque
  • Learn 5 Ways to Enhance Engine Power

A dynamometer is the most common tool for measuring the WHP. It has a connection to the vehicle, which in turn, accelerates a Power Absorbing Unit (PAU) and a roller. The roller’s rotational inertia, the power of the PAU, and the rate of acceleration determine the wheel horsepower. Some dynamometer calculates the WHP solely from the roller’s inertia.

The Differences Between BHP vs WHP

The BHP and WHP are both horsepower but the components that generate them are different. Also, they have some glaring dissimilarities.

bhp vs whp
BHP and WHP have some glaring differences.

>> Find a second-hand car from Japan with best deal HERE <<

Brake Horsepower (BHP)Wheel Horsepower (WHP)
Brake horsepower is a combination of the output torque and rotational speed.It is the inertia of a roller turned by the engine.
Does not count the power loss caused by the gearbox and drivetrain.It counts the drivetrain’s power loss and other parasitic losses.
BHP does not sow the true horsepower going to the brake.Shows the true horsepower going to the wheels.
Measured by a tool named a Prony brake. However, an electrical brake dynamometer is the most common tool for this job these days.A dynamometer does the measuring of WHP.

Wrapping up

BHP and WHP are methods to calculate the power. The difference is inside its equation. While BHP excludes other auxiliary components power looses, WHP does count. In another word, BHP measures strength of the engine by itself but WHP counts the final force to 4 wheel of a car. Hope you enjoy this article, if you have any question, do not hesitate to leave a comment below.




bhp vs whp

Philipp Meister

    Philipp Meister is an amazing part of Car From Japan’s blogger team. After obtaining a degree in Automotive Technology from Technical University of Munich, Philipp worked as a technician in various Volvo dealerships. He has long been a car owner and enthusiast. With over 20 years experience in the automotive industry, he has great discussions about car that provide you interesting information of most famous cars. If you are a car lover and want to get most-updated trend of automotive industry, Philipp’s blog is a must-visit site.

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      bhp vs whp
      Industry knowledge

      BHP Vs WHP: The Definitions And Differences

      By Philipp Meister

      0

      Share

      BHP Vs WHP: The Definitions And Differences

      5 (100%) 2 votes


      A horsepower is a unit for measuring power and in the automotive world, it denotes to the power that the engine generates with accessories. The two common horsepower types related to automobiles are brake horsepower (BHP) and wheel horsepower (WHP). But, what do these terms mean? Let’s delve into a discussion about BHP vs WHP including their definitions and the differences between them.

      Contents

      • BHP vs WHP: The Definitions
      • BHP vs WHP: The Rules For Measuring The Units
      • The Differences Between BHP vs WHP
      • Wrapping up

      BHP vs WHP: The Definitions

      Brake horsepower refers to the power generated and measured at the crankshaft just outside the engine . It does not count the power loss caused by the drivetrain and gearbox. The BHP is teh aftermath of aplying a brake torque to the engine. Some people call it Crank or Flywheel horsepower but these terms are not quite similar.

      brake horsepower vs wheel horsepower
      BHP and WHP are different.

      Wheel horsepower is measured at the wheels. It refers to the actual power available for the acceleration of the car minus the power loss in the drivetrain and all types of parasitic losses including power draining by the alternator, fans, pumps, muffled exhaust, and some other accessories. In fact, it is the true horsepower that goes into the driving wheels.

      BHP vs WHP: The Rules For Measuring The Units

      The standards for calculating BHP and WHP are separate from each other. The DIN 70020 was the standard in Europe for measuring the brake horsepower. It tests the power of an engine that has connections to all ancillaries and exhaust system that a vehicle has.

      According to the older American standard, BHP is the power of an engine minus the power of the water pump, alternator, and auxiliary components including muffled exhaust system, power steering pump, and other related parts. But, the new American standard counts the engine power along with all the ancillary accessories. For this reason, the BHP of the same car will be the same measured in European and new American standards.

                SEE MORE :

      • The Differences between Horsepower and Torque
      • Learn 5 Ways to Enhance Engine Power

      A dynamometer is the most common tool for measuring the WHP. It has a connection to the vehicle, which in turn, accelerates a Power Absorbing Unit (PAU) and a roller. The roller’s rotational inertia, the power of the PAU, and the rate of acceleration determine the wheel horsepower. Some dynamometer calculates the WHP solely from the roller’s inertia.

      The Differences Between BHP vs WHP

      The BHP and WHP are both horsepower but the components that generate them are different. Also, they have some glaring dissimilarities.

      bhp vs whp
      BHP and WHP have some glaring differences.

      >> Find a second-hand car from Japan with best deal HERE <<

      Brake Horsepower (BHP)Wheel Horsepower (WHP)
      Brake horsepower is a combination of the output torque and rotational speed.It is the inertia of a roller turned by the engine.
      Does not count the power loss caused by the gearbox and drivetrain.It counts the drivetrain’s power loss and other parasitic losses.
      BHP does not sow the true horsepower going to the brake.Shows the true horsepower going to the wheels.
      Measured by a tool named a Prony brake. However, an electrical brake dynamometer is the most common tool for this job these days.A dynamometer does the measuring of WHP.

      Wrapping up

      BHP and WHP are methods to calculate the power. The difference is inside its equation. While BHP excludes other auxiliary components power looses, WHP does count. In another word, BHP measures strength of the engine by itself but WHP counts the final force to 4 wheel of a car. Hope you enjoy this article, if you have any question, do not hesitate to leave a comment below.




      bhp vs whp

      Philipp Meister

        Philipp Meister is an amazing part of Car From Japan’s blogger team. After obtaining a degree in Automotive Technology from Technical University of Munich, Philipp worked as a technician in various Volvo dealerships. He has long been a car owner and enthusiast. With over 20 years experience in the automotive industry, he has great discussions about car that provide you interesting information of most famous cars. If you are a car lover and want to get most-updated trend of automotive industry, Philipp’s blog is a must-visit site.

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          (756)

        • Subaru WRX STI For Sale

          (724)

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          (698)

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          (687)

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          (675)

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          (673)

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          (665)

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          (652)

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          (592)

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          (562)

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          (543)

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          (527)

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          (1324)

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          (1109)

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          (1060)

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          (1044)

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          (1038)

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          (939)

        • Nissan Serena

          (878)

        • Hino Ranger

          (863)

        » Show more

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          bhp vs whp
          Industry knowledge

          BHP Vs WHP: The Definitions And Differences

          By Philipp Meister

          0

          Share

          BHP Vs WHP: The Definitions And Differences

          5 (100%) 2 votes


          A horsepower is a unit for measuring power and in the automotive world, it denotes to the power that the engine generates with accessories. The two common horsepower types related to automobiles are brake horsepower (BHP) and wheel horsepower (WHP). But, what do these terms mean? Let’s delve into a discussion about BHP vs WHP including their definitions and the differences between them.

          Contents

          • BHP vs WHP: The Definitions
          • BHP vs WHP: The Rules For Measuring The Units
          • The Differences Between BHP vs WHP
          • Wrapping up

          BHP vs WHP: The Definitions

          Brake horsepower refers to the power generated and measured at the crankshaft just outside the engine . It does not count the power loss caused by the drivetrain and gearbox. The BHP is teh aftermath of aplying a brake torque to the engine. Some people call it Crank or Flywheel horsepower but these terms are not quite similar.

          brake horsepower vs wheel horsepower
          BHP and WHP are different.

          Wheel horsepower is measured at the wheels. It refers to the actual power available for the acceleration of the car minus the power loss in the drivetrain and all types of parasitic losses including power draining by the alternator, fans, pumps, muffled exhaust, and some other accessories. In fact, it is the true horsepower that goes into the driving wheels.

          BHP vs WHP: The Rules For Measuring The Units

          The standards for calculating BHP and WHP are separate from each other. The DIN 70020 was the standard in Europe for measuring the brake horsepower. It tests the power of an engine that has connections to all ancillaries and exhaust system that a vehicle has.

          According to the older American standard, BHP is the power of an engine minus the power of the water pump, alternator, and auxiliary components including muffled exhaust system, power steering pump, and other related parts. But, the new American standard counts the engine power along with all the ancillary accessories. For this reason, the BHP of the same car will be the same measured in European and new American standards.

                    SEE MORE :

          • The Differences between Horsepower and Torque
          • Learn 5 Ways to Enhance Engine Power

          A dynamometer is the most common tool for measuring the WHP. It has a connection to the vehicle, which in turn, accelerates a Power Absorbing Unit (PAU) and a roller. The roller’s rotational inertia, the power of the PAU, and the rate of acceleration determine the wheel horsepower. Some dynamometer calculates the WHP solely from the roller’s inertia.

          The Differences Between BHP vs WHP

          The BHP and WHP are both horsepower but the components that generate them are different. Also, they have some glaring dissimilarities.

          bhp vs whp
          BHP and WHP have some glaring differences.

          >> Find a second-hand car from Japan with best deal HERE <<

          Brake Horsepower (BHP)Wheel Horsepower (WHP)
          Brake horsepower is a combination of the output torque and rotational speed.It is the inertia of a roller turned by the engine.
          Does not count the power loss caused by the gearbox and drivetrain.It counts the drivetrain’s power loss and other parasitic losses.
          BHP does not sow the true horsepower going to the brake.Shows the true horsepower going to the wheels.
          Measured by a tool named a Prony brake. However, an electrical brake dynamometer is the most common tool for this job these days.A dynamometer does the measuring of WHP.

          Wrapping up

          BHP and WHP are methods to calculate the power. The difference is inside its equation. While BHP excludes other auxiliary components power looses, WHP does count. In another word, BHP measures strength of the engine by itself but WHP counts the final force to 4 wheel of a car. Hope you enjoy this article, if you have any question, do not hesitate to leave a comment below.




          bhp vs whp

          Philipp Meister

            Philipp Meister is an amazing part of Car From Japan’s blogger team. After obtaining a degree in Automotive Technology from Technical University of Munich, Philipp worked as a technician in various Volvo dealerships. He has long been a car owner and enthusiast. With over 20 years experience in the automotive industry, he has great discussions about car that provide you interesting information of most famous cars. If you are a car lover and want to get most-updated trend of automotive industry, Philipp’s blog is a must-visit site.

            Prev Post

            What Is The Best Exhaust Tip For Deep Sound? Know Here

            Next Post

            How To Remove Window Tint From Your Car? Looking Into The Simple DIY Process

            You might also like

            More from author

            Industry knowledge


            10 Interesting Facts About Semi Trucks You Ought To Know

            Industry knowledge


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            Industry knowledge


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            Industry knowledge


            What To Do after Buying a Used Car? 10 Things to Help you Get Going

            Prev

            Next

            Leave A Reply

            Cancel Reply

            Popular Posts

            • Best Car Battery
              A Guide to Finding The Best Car Battery: Top 7 Picks for 2018
            • White Smoke From Exhaust
              White Smoke From Exhaust: Main Causes and How to Fix

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              (756)

            • Nissan Silvia For Sale

              (756)

            • Subaru WRX STI For Sale

              (724)

            • Toyota Century For Sale

              (698)

            • Toyota Chaser For Sale

              (687)

            • Toyota Hiace For Sale

              (686)

            • Honda Accord 2003 For Sale

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              (673)

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              (665)

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              (659)

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            • Subaru Impreza 2011 For Sale

              (592)

            • Mitsubishi Outlander 2006 For Sale

              (574)

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              (562)

            • Nissan X-Trail 2011 For Sale

              (543)

            • Mazda MPV 2006 For Sale

              (527)

            • Suzuki Swift 2008 For Sale

              (513)

            • Isuzu Elf Truck

              (2003)

            • Mitsubishi Canter

              (1425)

            • Suzuki Wagon R

              (1324)

            • BMW 3 Series

              (1109)

            • Suzuki Alto

              (1060)

            • Toyota Prius

              (1044)

            • Honda N-BOX

              (1038)

            • Nissan Note

              (939)

            • Nissan Serena

              (878)

            • Hino Ranger

              (863)

            » Show more

            Car By Make

            • Toyota

              15,586

            • Nissan

              6,951

            • Suzuki

              4,938

            • Honda

              4,889

            • Daihatsu

              4,255

            • Mitsubishi

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            • Subaru

              2,444

            • Mazda

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            • BMW

              2,047

            • Mercedes-Benz

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            Car By Price

            • Under $1000

            • $1,000 – $1,500

            • $1,500 – $2,000

            • $2,000 – $2,500

            • $2,500 – $3,000

            • Over $3,000

            Car By Discount

            • 70% Off or More

            • 60% Off or More

            • 50% Off or More

            • 40% Off or More

            • 30% Off or More

            • 1%-30% Off

            Car By Body Type

            • Hatchback

              12,152

            • Wagon

              8,275

            • Sedan

              7,238

            • SUV

              6,335

            • Mini Vehicle

              4,755

            • Van / Minivan

              4,451

            • Truck

              4,073

            • Other

              2,559

            • Coupe

              1,353

            • Convertible

              662

            • Bus / Minibus

              489

            • Machinery

              15

            Join our VIP club and receive 30 USD

            We will send voucher code to your email!




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