On 09/04/2016 14:29, Dave Plowman (News) wrote:
In article ,
Fredxxx wrote:
On 09/04/2016 12:14, michael adams wrote:
"Dave Plowman (News)" wrote in message
...

Same as BHP is all important to bar room mechanics.


"Dave Plowman (News)" wrote in message
...

Please don't use 'power' as it seems to confuse so many on here. The
term is BHP - brake horse power.

If you want the least confusing measurement of power then use Watts, or
even KW. They are also an SI unit.

It's not commonly used in the UK for engine outputs. That is still BHP -
in the same way as we still used MPH. Although PS is creeping in. But they
can all be converted directly.

PS has been creeping out for years. It is no longer the EU "legal"
definition of power, and despite representing a German Horse Power,
German horses are less powerful than British ones so causing all the
more confusion. Perhaps the feeling they are "creeping in" is more a
reflection of the cars you buy, or for cars where power is seen as so
crucial, or even marketing where you get more PSs for your money?

kW is an international unit with no local variation, so perhaps best to
stick to that?

If people here don't know how to calculate power from torque and revs,
then they ought to excuse themselves from this discussion and learn.

I've been saying that for weeks. ;-)