newtons to newton meteres

[OFENSV]

would like to know how to convert newtons to newton metres. just got my car back from CRD after a dyno tune and made just over 6000 newtons at the wheels, just like to know what that is in newton metres

[SKY031]

this help?

http://www.srtorque.com/torqcon/tcnm.html

?

[OFENSV]

i couldnt find just newtons

[J_J]

i guess you would have to multiply it by a number of metres

possibly how far you equivilantly travelled

[OFENSV]

i guess you would have to multiply it by a number of metres

possibly how far you equivilantly travelled

that sounds like to much work

[R32Big_boy]

100 N to a NM

[cul202]

Interesting, considering Newtons is a measure of force, while Newton metres is a measure of force & leverage.

'100N to a Nm'??

1 newton applied to a lever 1 metre from the fulcrum is 1 Nm.

Diameters of tyres, what gear you're in, diff ratio, etc all would be part of the equasion

[funkymonkey]

*can of worms initialised*

*confusion pending*

A Newton is defined to be the force which will change the velocity of a one kilogram object by one meter per second over a period of one second.

[OFENSV]

now im even more confused.

[xRHETTx]

Who uses newtons on a dyno? You should be given a torque reading in Netwon-metres. The only thing i think you could do is multiply the force in Newtons (6000) by the radius of ur wheels (about 0.30m?) to get a torque of 1800Nm, but that doesnt sound right.

[dojobi]

Yeah it's a bit confusing, isn't it .

Basically, they're saying you can't directly convert them as they are measurements of different things.

The dyno is reading tractive effort/force from memory, so I don't think there'll be an easy way to do a conversion.

The way I work out torque from dyno graphs is to get the power and the rpm (you will have to convert this from the km/h reading - compensating for the diff ratio and gears), then use this formula:

Torque (Nm) = Power (kW) x 9543 / RPM

[awd]

would like to know how to convert newtons to newton metres. just got my car back from CRD after a dyno tune and made just over 6000 newtons at the wheels, just like to know what that is in newton metres

To convert Newtons to Nm from a Dyno reading, you need to know the roller radius, which is 108.5mm on the dyno mentioned.

Just muliply 6000 times .1085, and this will give you your peak Nm reading.

Your car had a maximum Nm reading of 651Nm in this case.

Newtons, or Motive Force which is the correct name, is the force at the tyre diameter pushing the car forward.

[dojobi]

651Nm is pretty high. Over double stock - and that's at the wheels. Are you sure that's right? He would have to be making his max of 258kW at 3800rpm to get that much torque, and I'm sure he would have reached peak power much higher up than that.

Maybe I've screwed up my calcs or something.

[Zagan]

I would need to look this up again but, I think newtons are a mesurment of power, like watts.

Newton meters is a measurment of power over 1 meter, So your car could push 6 tons over 1 meter.

Newtons I don't think is a measurment of torqe but newton meters is.

[Zagan]

ok looked it up:

So if your car can force 6000 newtons, this would equal 6000 newton meters.

To further explain this your car can basicly push 6 tons of weight 1 meter at full power.

A newton is the amount of force nothing to do with torque, the weight of 1 newton is the same as 100 grams.

A Newton Meter is the amount of 1 Newton (100 grams) being moved 1 meter in any direction.

Another example would be picking up 100 gram weight, and pushing it 1 meter, you can then say your arm has 1 newtonmeter or 1nm.

Great isn't it????

[cul202]

Did you say 'can of worms' funky....

As funky said a Newton is the force to change the velocity of a 1kg object by 1m/s/s. In other words its a accelerative force. Force = mass x acceleration

Gravity on Earth can accelerate objects at approx 9.8m/s/s. That means my 98kg arse puts a force of 960.4 Newtons on the ground (98kg x 9.8m/s/s).

If I was standing on a big breaker bar 50cm (0.5m) from the socket/wheelnut trying to undo a wheelnut, I'd be placing 480.2 Newton metres of torque on it (960.4N x 0.5m).

This is a very simple overview of Newtons (force) & Newtonmetres (torque).

.

[BHDave]

If you want to start talking in terms of force applied moving an bjet a set distance then you are really opening a MASSIVE can of worms. For 1 it's incorrect and 2 you're forgetting about inertia, momentum, friction, acceleration and a few other concepts that i've forgotten abut in the last few years, not to mention the infinite variables that would render this method of measurement absolutely useless.

Cul202 has the right of it theory wise, that is Newtons is a measurement of force, ie Force =mass x acceleration, metres is a measurement so newton metres is force x distance, also known as bending moments or torque.

how to get a proper torque figure from a figure of 6000N is beyond me i'm afraid

[martydaman]

A newton is the amount of force nothing to do with torque, the weight of 1 newton is the same as 100 grams.

1 Newton is the weight of the object on earth. Force of gravity on earth is 9.8m-1 and the physics formulae u guys are looking for is

W= mg. W= Wieght (in newtons)

m = Mass (in Kg)

g = gravitational force (9.8ms)

so... YOU CAN DO THE MATHS COZ IN TOO FREAKIN LAZY

[dojobi]

how to get a proper torque figure from a figure of 6000N is beyond me i'm afraid

That's why I just use the torque curve given on the dyno purely for seeing how your torque curve looks - I ignore the values. If you want actual values (like I think the original poster wants), then you just use the formula I posted earlier.

[4door_Sleeper]

Whilst we are on the topic of converting values, if I convert my skyline to 24 volts at 6000rpm, can anyone tell me how many amps I would have if I currently get 195fwkw on a dyno on a 23 degree day???