Suspended
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Can someone explain why some manufacturers quote engine power as PS and others as BHP? Is it simply a marketing thing or is there a valid reason? Just curious.
PS/BHP
- Thread starter George Hincapie
- Start date
Though it’s still commonly used by carmakers, PS or Pferdestärke (horse-strength in German) was actually replaced by kW as the EU's ‘legal’ measurement of engine power in 1992.
One PS is about 98.6% of a brake horsepower – the two are virtually interchangeable, and PS is sometimes referred to as 'metric horsepower'.
One PS is about 98.6% of a brake horsepower – the two are virtually interchangeable, and PS is sometimes referred to as 'metric horsepower'.
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Interesting. Thank you.
Associate
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Odd that they overhauled it when it didn't make a huge difference to the numbers. For example, the new McLaren 675LT is called '675' as that is it's power measured in PS - thats about 666BHP.
Mabye the idea was that the EU would use it universally but as OP said, I've seen both people and car manufacturers use PS,KW or BHP.
Mabye the idea was that the EU would use it universally but as OP said, I've seen both people and car manufacturers use PS,KW or BHP.
Soldato
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I think kw is the most confusing it's 0.7 hp to 1 kw I think.
1kW = 1.341 HP
Caporegime
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Everyone just pick one and use it goddammit! I vote for hamsters.
Horse Power only really makes sesne if you are also using Cubic Inches to measure capacity!
Back in the dark ages when we had proper engines
D )
An engine in "standard Tune" would give you for each CI, 1HP and 1FtLb of torque.
So the CI of an engine would tell you everything that you wanted to know!
(NOW you know why a Dodge Charger with a 500CI engine was so bloody awesome!
)
Back in the dark ages when we had proper engines
D ) An engine in "standard Tune" would give you for each CI, 1HP and 1FtLb of torque.
So the CI of an engine would tell you everything that you wanted to know!
(NOW you know why a Dodge Charger with a 500CI engine was so bloody awesome!
)
Horse Power only really makes sesne if you are also using Cubic Inches to measure capacity!
Back in the dark ages when we had proper engines
An engine in "standard Tune" would give you for each CI, 1HP and 1FtLb of torque.
So the CI of an engine would tell you everything that you wanted to know!
(NOW you know why a Dodge Charger with a 500CI engine was so bloody awesome!
Only trouble is, American HP is different to British BHP.......
Only trouble is, American HP is different to British BHP.......
Its only a rough guide, but nevertheless a good one!
(I have a particular fondness for large, relatively low specific performance, engines. They just go, and go, and go! and still have massive torque nevertheless
)
Soldato
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Isnt din used for at the wheels? As to my previous post i got it the wrong way round then.
.
hahaPointless. If you decide to go for an option of different wheels, say alloys and the rolling diameter is different, you end up with a different wheel horsepower number.
So you don't mind not knowing your drive train loss and that fact that you will never actually kow how much power is at the wheels before you buy? Fair enough.
