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PostPosted: Tue Jan 31, 2006 7:37 pm 
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religious status
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Joined: Fri Mar 19, 2004 6:19 pm
Posts: 39754
Location: near Baulkham Hills, NSW
Hmmmm this is a hobby horse of mine- although in general, I do like the metric system. I also can use the (proper) Queen's Imperial measures...

Watt was a bloke, invented steam engines I think..
Newton was a bloke...
for that matter Pascal was a bloke too... :lol:
why ffs are we venerating these blokes!!!!

WHY don't we use measurement standards that MEAN something...
like,
Kg/Cm2...
Kg/M...
Bar...

Europe did this or maybe still do- my Fiat had `Press Olio' in Kg/Cm2...

:lol:

_________________
DrMini- 1970 wasaMatic 1360, Mk1S crank, 86.6HP (ATW) =~125 @ crank, 45 Dellorto (38 chokes), RE282 sprint cam, 1.5 rockers, 11.0:1 C/R. :mrgreen:


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PostPosted: Tue Jan 31, 2006 8:00 pm 
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848cc
848cc
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Joined: Wed Jun 22, 2005 9:50 am
Posts: 5
Location: Geelong, Victoria
Sorry, just had to add my 2c worth.

Torque figures, really, are meaningless. A screwdriver used as a lever can produce more torque than your average mini motor at the flywheel. You can increase your torque simply by gearing down. Power is what makes you go faster (and win races), however another concept of limited usefulness is peak power which is the figure usually quoted. A peak power of 169 hp at 6000 rpm is not much use if power at 5900 and 6100 rpm is zero. This motor's going nowhere (unless you had infinitely variable gearing.. but how do you start the thing) . A more useful number would be the mean power between the rpm value at maximum power and half this value for example (ie for our engine above, mean power between 3000 and 6000 rpm). The peak torque figure is useful not for the actual value of torque but to describe the power spread of the engine. A peak torque value at low rpm indicates a flexible engine... but it is the power availlable at the speed you are going which will determine your acceleration.

hope that helps......


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