www.boxertrix.com

Lifted this extract from Wikipedia.

Could this be what we are looking for?

Quote....."The various units used to indicate this definition (PS, cv, hk, pk, ks and ch) all translate to horse power in English, so it is common to see these values referred to as horsepower or hp in the press releases or media coverage of the German, French, Italian, and Japanese automobile companies. British manufacturers often intermix metric horsepower and mechanical horsepower depending on the origin of the engine in question. Sometimes the metric horsepower rating of an engine is conservative enough so that the same figure can be used for both 80/1269/EEC with metric hp and SAE J1349 with imperial hp."

as was said earlier Euro ponies are weaker than British stallions

According to my copy of Bosch automotive handbook (2nd edition):
1 PS (Pferdestärke) = 1 ch (cheval vapeur) = 735.499 W
This is according to DIN 66 036 standard.

BHP and American HP = 745.70 W
Probably according to the SAE standard mentioned above, by Corvus.

Tapio wrote:According to my copy of Bosch automotive handbook (2nd edition):
1 PS (Pferdestärke) = 1 ch (cheval vapeur) = 735.499 W
This is according to DIN 66 036 standard.

BHP and American HP = 745.70 W
Probably according to the SAE standard mentioned above, by Corvus.

Is the Cheval Vapeur the same as a Horse Fart

slparry wrote:

Tapio wrote:According to my copy of Bosch automotive handbook (2nd edition):
1 PS (Pferdestärke) = 1 ch (cheval vapeur) = 735.499 W
This is according to DIN 66 036 standard.

BHP and American HP = 745.70 W
Probably according to the SAE standard mentioned above, by Corvus.

Is the Cheval Vapeur the same as a Horse Fart

So how many horse farts does your bike produce?
Are you conderned about emissions?

McBoxer wrote:

slparry wrote:

Tapio wrote:According to my copy of Bosch automotive handbook (2nd edition):
1 PS (Pferdestärke) = 1 ch (cheval vapeur) = 735.499 W
This is according to DIN 66 036 standard.

BHP and American HP = 745.70 W
Probably according to the SAE standard mentioned above, by Corvus.

Is the Cheval Vapeur the same as a Horse Fart

So how many horse farts does your bike produce?
Are you conderned about emissions?

to quote Bike Magazine (from their article on leaded fuels) " ... short of putting lead in Farleys Rusks, putting lead in petrol is the perfect way of ensuring your children are stupid..." ....

Emissions are behind me ......

Tapio wrote:According to my copy of Bosch automotive handbook (2nd edition):
1 PS (Pferdestärke) = 1 ch (cheval vapeur) = 735.499 W
This is according to DIN 66 036 standard.

BHP and American HP = 745.70 W
Probably according to the SAE standard mentioned above, by Corvus.

.....and .735/.746 = .985. (Edited!)

So that's 1.5% difference. There's probably more allowance than that in the standards pertaining to published horsepower figures. Hence the switching between the two with gay abandon?

Tapio wrote:According to my copy of Bosch automotive handbook (2nd edition):
1 PS (Pferdestärke) = 1 ch (cheval vapeur) = 735.499 W
This is according to DIN 66 036 standard.

BHP and American HP = 745.70 W
Probably according to the SAE standard mentioned above, by Corvus.

So German and French horses do the same amount of work, just slightly less than American and British horses.

The French horse power is a rare unit, presumably because the French ate them all, or sold them to Findus.

Treat your bike to some new engine oil, recover the lost horses.