Bhp???

[brettono42]

Why so people refer to the Bhp of cars in the game all I can see is the normal horse power of the car which I'm assuming is at the wheels or is this the Bhp ? Or are people just trying to sound cool and have no idea what they are actually saying?

 

[MitchZ06]

Brake HorsePower is usually measured at the crank iirc and is generally higher than HP measured at the wheels due to driveline and parasitic losses, whether this is whats specified in the game (I'm thinking it is) or not would relate to which term people use. As to people wanting to sound cool, well I think some grow up using one term and some use another...

 

[Ford Driver]

What Mitch said is correct. What you see in the game is up to you, measure of power is an option in the game. Generally different countries favour different ways of measuring it. PSI is becoming more common now I believe, but BHP is a faily good universal measure.
I don't think anyone is trying to sound clever. I always use BHP, if you have ever seen Top Gear you tend to:tup:

 

[Crazed_Coupe]

Brake HorsePower is usually measured at the crank iirc and is generally higher than HP measured at the wheels due to driveline and parasitic losses, whether this is whats specified in the game (I'm thinking it is) or not would relate to which term people use. As to people wanting to sound cool, well I think some grow up using one term and some use another...

This.

Adding on to what you are saying about growing up on it, people from different parts of the country or different countries in general use different terms to describe the horsepower.

 

[Jubby]

Brake Horsepower is measured at the crankshaft. "bhp" hasn't been used in the US (or other places for that matter) in 30 years to actually measure horsepower as the standard (SAE) measurement now requires there to be the normal "draws" on the engine giving you the normal hp.

In short... bhp is what you should get out of an engine by itself, hp is what you actually get because of all of the electrical and belt drain.

 

[ford_racer]

brake horsepower is measured at the crankshaft. "bhp" hasn't been used in the us (or other places for that matter) in 30 years to actually measure horsepower as the standard (sae) measurement now requires there to be the normal "draws" on the engine giving you the normal hp.

In short... Bhp is what you should get out of an engine by itself, hp is what you actually get because of all of the electrical and belt drain.

+100%

 

[Nielsen]

What Mitch said is correct. What you see in the game is up to you, measure of power is an option in the game. Generally different countries favour different ways of measuring it. PSI is becoming more common now I believe, but BHP is a faily good universal measure.
I don't think anyone is trying to sound clever. I always use BHP, if you have ever seen Top Gear you tend to:tup:

Measured as BHP in my game but I'd rather see power in HP. I can't find an option to change it so could you please tell me where that option is? All I see is changing from mp/h to km/h and I use the latter.

 

[Villain]

Or are people just trying to sound cool and have no idea what they are actually saying?

Google is your friend, assuming that people are posers is not.

 

[Morgoth_666]

Measured as BHP in my game but I'd rather see power in HP. I can't find an option to change it so could you please tell me where that option is? All I see is changing from mp/h to km/h and I use the latter.

It's just one of the many "improvements" in GT5, getting rid of annoying, frustrating options like that.

 

[bigmarv69]

I always thought that BHP was measured at the rear wheels, HP at the flywheel, BHP usually being less than HP.

Brake horse power is a measurement of horsepower at the ground wheel on a dyno at a specific rpm

 

[MitchZ06]

Brake HP at the crank, Wheel HP at the wheels (RWHP, FWHP, AWHP), Flywheel HP, etc, etc. Horsepower is just an overall term.

 

[hawkeye122]

But what exactly makes a "Horse Power"? What does it actually mean? Isnt it like the torque, but then some other equation?

 

[MitchZ06]

Torque is rotational force or twist produced, horsepower is (work)/(time) or (force x distance) / (time). Tis all explained here.

 

[berty1979]

(Torque x Engine speed) / 5,252 = Horsepower

I knew there was a sum to convert it somewhere but must admit i had to look it up.

 

[MitchZ06]

Yeah okay then...horses don't produce torque but they were used as the original measure (after being measured to find out exactly what kind of power they can produce ofcourse). The (force x distance) / (time) formula is the correct equation.

 

[berty1979]

I was always lead to believe that an internal combustion engine produced torque only, which is why hp, bhp, shp ect. exists while torque is universal. Its a way of measuring the power but always comes from the actual torque of the engine. The equasion works for my car pretty well.
Yes/No??
Oh and horses dont produce torque, cheers for that

 

[chug-a-bug]

Torque is not the same as horsepower... it's possible to have a high HP and a low torque... and vice versa.

 

[NFSCARBON1]

I was always lead to believe that an internal combustion engine produced torque only, which is why hp, bhp, shp ect. exists while torque is universal. Its a way of measuring the power but always comes from the actual torque of the engine. The equasion works for my car pretty well.
Yes/No??
Oh and horses dont produce torque, cheers for that

I don't think that is strictly true. Formula One cars have about 700BHP but I think they have comparitively very little torque compared to a similarly powerful road car. I may be wrong, but I could swear Martin Brundle said something about it on BBC's F1 coverage.

 

[PawnBoy]

Power = energy / time, or work / time. Work = force x distance. Torque is that force in the work equation. So Torque is the instantaneous force the engine is putting to the crank. But the amount of power the engine makes is dependent on how fast it turns.

So a high torque engine might make fairly low power if it turns slowly (i.e. farm equipment ), and a low torque engine might make very high power if it turns quick enough (i.e. motorcycle, F1).

And the reason you can measure a "horse's power" is because you can measure how hard it pulls over a distance in a specific time. Which historically was measured when horses would lift coal from mines.

 

[Thaddaeus]

Measured as BHP in my game but I'd rather see power in HP. I can't find an option to change it so could you please tell me where that option is? All I see is changing from mp/h to km/h and I use the latter.

There is no option. It depends on the game version and language you installed.
When i install the german copy i get kW and when i install the UK version i get HP.
Same with miles and kilometer.

Edit: Guess there is no way to have BHP instead of HP...

 

[GraphiteGB]

There is no option. It depends on the game version and language you installed.
When i install the german copy i get kW and when i install the UK version i get HP.
Same with miles and kilometer.

Edit: Guess there is no way to have BHP instead of HP...

The other way around you mean.
All Power is displayed with BHP on display. not HP. the B is always there.
For example the red bull is currently 1417BHP/15000RPM

UK version of GT5.

 

[berty1979]

NFSCarbon
I don't think that is strictly true. Formula One cars have about 700BHP but I think they have comparitively very little torque compared to a similarly powerful road car. I may be wrong, but I could swear Martin Brundle said something about it on BBC's F1 coverage.

Hmm, so what your actually saying is that my equasion makes sense in the fact that the low torque on offer is multiplied by the 18000 RPM where the hp is measured.
On a diesel, the revs go to roughly 4500 rpm and they are low hp, high torque. Comparitive petrol engines on the other hand max out at 6500-10000 (road cars), low torque more hp.

 

[GTveteran]

^Thats not always strictly true but is usually the case with standard road cars.

The options to change the units of power in game are in the actual garage I think. I'm sure I've seen the option somewhere.

1hp = 746 W (watts) or 0.746 kW

And according to VW car brochures PS is the metric equivalent of bhp where 1bhp = 1.013PS.

 

[shmogt]

Bhp means brake horsepower and yes it means the actually power at the wheels. Porsche is always lower power but they handle and perform as good as there higher horsepower competition. HP is more to impress people and trick them into buying there cars. For example muscle cars have huge amounts of power, but can be beat by like everything on a race track since the wheels just keep spinning and not actually moving the car

 

[Nielsen]

There is no option. It depends on the game version and language you installed.
When i install the german copy i get kW and when i install the UK version i get HP.
Same with miles and kilometer.

Edit: Guess there is no way to have BHP instead of HP...

You must mean HP instead of BHP right? Gutted that it can't be changed but mp/h and km/h can be changed in the options though. My copy is for Denmark, Finland, Norway and Sweden and it uses BHP which is kind of wrong because I'm pretty sure all four countries use HP. No big deal but it could be a simple option really.

 

[berty1979]

^Thats not always strictly true but is usually the case with standard road cars.

Like i said, (in brackets)

 

[Ford Driver]

There is no option. It depends on the game version and language you installed.
When i install the german copy i get kW and when i install the UK version i get HP.
Same with miles and kilometer.

Edit: Guess there is no way to have BHP instead of HP...

I stand corrected, sorry about that guys. I know the option existed in previous titles so assumed it did in GT5 too.
I never tried to change mine as they were already my preferred units.

 

[Zenmervolt]

Brake Horsepower is measured at the crankshaft. "bhp" hasn't been used in the US (or other places for that matter) in 30 years to actually measure horsepower as the standard (SAE) measurement now requires there to be the normal "draws" on the engine giving you the normal hp.

In short... bhp is what you should get out of an engine by itself, hp is what you actually get because of all of the electrical and belt drain.

Close, but not quite.

BHP is horsepower as measured by a brake dynomometer. It can be at the wheels or at the crank and can be either with or without draws on the engine. While "bhp" is often used colloquially as a synonym for the old SAE "gross" hp rating (SAE J245 and J1995), "bhp" is just as applicable to the newer SAE "net" (SAE J1349) and even the newest "SAE Certified Power" (SAE J2723) standard.

The old style in the US was simply SAE "gross" hp. Modern cars are rated with a variant of SAE "net" hp, which is measured with all accessories in place and the exhaust system fitted. The old SAE gross standard allowed measurement even with open headers and no water pump.

As a "standard" term, "BHP" is pretty much worthless; all it does is specify the device (a brake dynomometer) that is doing the measuring. It does not specify the testing procedures and it does not specify where the measurement takes place (e.g. at the flywheel or at the driven wheels). There are many different standards for how the procedure to determine bhp should go. There are the two SAE standards mentioned above ("gross" and "net") as well as the DIN ("Deutsches Institut für Normung" or "German Institute for Standards"); the DIN standard is commonly rendered as "PS" which is for the German word "Pferdestärke" (literally "Horse Strength", essentially it's just German for "horsepower").

The DIN standard has become universalized as "metric horsepower" and is almost certainly the standard used in GT5 since it's how the cars would be rated in Japan. 1 PS (DIN hp) is equal to 0.986 HP (Imperial). Even though there's a JIS hp measurement specification I believe that Japan now uses the international metric standard.

And that's probably more than anyone wanted to know, but it's both exhaustive and accurate.