Tank Slap - Motorcycle Forum

Monty wrote:

Blade wrote:600's are not torquey. They make similar torque to they did 10 years ago, they simply have more bhp, extended rev ranges and different gearing so maybe the midrange seems stronger.

True, without a turbo or intercooler the calorific value of petrol and the engines displacement limit the torque an engine can produce and that hasn't changed.

BHP = torque x rpm / by a number I can't remember

5252

Thats why the BHP & Torque curves always cross at 5252 rpm

Blade wrote:Thats why the BHP & Torque curves always cross at 5252 rpm

Where do you get this from?

misspost

I still reckon bike manufacturers are missing a trick by not making a lightweight 100rwbhp sportsbike.

One or two rumours of a Mini-gale from Ducati but i will believe it when i see it.

After riding the 1199 Panigale a few weeks back, i was astounded by just how much stomp it has in full power mode. Yes its way more than you ever need on the road, but its easy enough to change it to 120bhp mode with the flick of a switch and you have two bikes in one. A race ready sportsbike with more power than a WSBK racer of 10 years ago or a more road orientated power in 120bhp mode.

Monty wrote:

Blade wrote:600's are not torquey. They make similar torque to they did 10 years ago, they simply have more bhp, extended rev ranges and different gearing so maybe the midrange seems stronger.

True, without a turbo or intercooler the calorific value of petrol and the engines displacement limit the torque an engine can produce and that hasn't changed.

BHP = torque x rpm / by a number I can't remember

That number you can't remember is 5252 and is the correction factor for angular velocity in radians rather than degrees I think. It's been a looooooooong time since I had to know this kind of stuff though!

I like a litre sports bike, but if a 600 turned up that I really loved I would get that instead. But at the moment I am loving the horses I have.

beermonster wrote:

Monty wrote:

Blade wrote:600's are not torquey. They make similar torque to they did 10 years ago, they simply have more bhp, extended rev ranges and different gearing so maybe the midrange seems stronger.

True, without a turbo or intercooler the calorific value of petrol and the engines displacement limit the torque an engine can produce and that hasn't changed.

BHP = torque x rpm / by a number I can't remember

That number you can't remember is 5252 and is the correction factor for angular velocity in radians rather than degrees I think. It's been a looooooooong time since I had to know this kind of stuff though!

I really struggle with torque and horse power, helps if I think of it as power and work done.

Is dividing by 5252 the point at which one pound foot equals one hp?

Isn't that the same thing as where the torque curve and power curve cross?

yes it is Duke