G-Force Meter

[dabest2500]

Why does the G-Force meter at the bottom of the screen only go up to 2.5 G?

 

[Grayfox]

because few cars pull more than 2.5g's only F1's can pull more than 2.5 that i know of

we are not using space shuttles which pull 4+ during takeoff and get 6+ during re-entery

 

[dabest2500]

But when I drive the FGT the G-Force meter stops at 2.5 still.
Shouldn't it be changed to 10 G or something to accommodate room for the X1?

 

[Grayfox]

But when I drive the FGT the G-Force meter stops at 2.5 still.
Shouldn't it be changed to 10 G or something to accommodate room for the X1?

humans cant handle anything higher than 8g's

i also doubt the X1 can pull more than 4g's

 

[Sidstyler]

I have always used it to find the sweet spot for where my steering in a Car is on the Brink of Losing and having traction.
It obvious is measuring the amount of Force from the turning of the Car, so in terms of physics that Gforce measurement is displaying how hard you are fighting your Forward momentum to get around the corner.

The Middle of the Gauge should be 1 G, and half way should be 1.75 Gs. 2 Gs is as an easy way of saying it makes every 2x their normal weight in one G.

A car will i guess simply lose traction before 2.5 Gs as long as it has tires, because at that point the car is displacing more than double it's weight into the Tire's grip in a different direction than the Chassis of the Car's direction of motion.

 

[Jay]

humans cant handle anything higher than 8g's

i also doubt the X1 can pull more than 4g's

The X2010 can pull 8.25g's according to it's specs, after driving it I wouldn't be suprised. Also humans can withstand much more than 8 in short bursts but nothing sustained or repetitive.

 

[GOTMAXPOWER]

i also doubt the X1 can pull more than 4g's

In the description it says up to 8g ,and F1 cars can get up to 5g too (first vid I searched http://www.youtube.com/watch?v=jWsYffV0sLw )

 

[dabest2500]

I have always used it to find the sweet spot for where my steering in a Car is on the Brink of Losing and having traction.
It obvious is measuring the amount of Force from the turning of the Car, so in terms of physics that Gforce measurement is displaying how hard you are fighting your Forward momentum to get around the corner.

The Middle of the Gauge should be 1 G, and half way should be 1.75 Gs. 2 Gs is as an easy way of saying it makes every 2x their normal weight in one G.

A car will i guess simply lose traction before 2.5 Gs as long as it has tires, because at that point the car is displacing more than double it's weight into the Tire's grip in a different direction than the Chassis of the Car's direction of motion.

Where would 0G be then?
For when the car is on the grid.

 

[gambleboyen]

If the meter went to 8 or even 10 G, you wouldn't get much of a response on the meter when driving more regular cars.

 

[dabest2500]

The X2010 can pull 8.25g's according to it's specs, after driving it I wouldn't be suprised. Also humans can withstand much more than 8 in short bursts but nothing sustained or repetitive.

Fighter pilots have G-Force trousers to help.

 

[UK-Gamer]

The X2010

That just doesn't sound (or look right) X1!

 

[dabest2500]

If the meter went to 8 or even 10 G, you wouldn't get much of a response on the meter when driving more regular cars.

Then what if they had different meters for those special cars?
The FGT, the Ferrari F1s and the X1?

 

[Sidstyler]

humans cant handle anything higher than 8g's

i also doubt the X1 can pull more than 4g's

Fighter Pilots pull 8Gs quite often, mind you they are wearing a G-suit and during maneuvers have to perform breathing exercises to prevent blackouts.

A person driving the X2010 will definitely need a Gsuit, and the Races would last alot shorter than normal F1 Races as they would be out of breath and stamina preventing blacking out. The crashes would be spectacular if it became reality in it's own race series.
The could call it F-Max. (F-zero Reference, haha)

 

[Sidstyler]

Where would 0G be then?
For when the car is on the grid.

No, for Zero Gs you would of had to somehow driven your car into Space.

 

[dabest2500]

The crashes would be spectacular if it became reality in it's own race series.

 

[dabest2500]

No, for Zero Gs you would of had to somehow driven your car into Space.

Why?
This is 0 Lateral G Force.

 

[Sidstyler]

Why?
This is 0 Lateral G Force.

Seems kinda silly to be arguing/discussing this much. haha

Earth's Gravity is constant and things don't just magically defy it unless another force is acting on it, Like when you throw a ball for instance; the second you let go the ball starts decelerating because of gravity. Even if the ball is thrown straight up it will have 1G. Even when it loses all velocity at the top of the throw it still has the effect of one unit of gravity on it.

0Gs also means that the weight of an object is unaffected by it's mass, so a 1000 kg car in space has a technical weight of 0 kg.
A 1000 kg car at rest on earth has a weight of 1000 kg.
A 1000 kg car going around a corner experiencing 2 Gs has a weight of 2000 kg.

 

[dabest2500]

Seems kinda silly to be arguing/discussing this much. haha

Earth's Gravity is constant and things don't just magically defy it unless another force is acting on it, Like when you throw a ball for instance; the second you let go the ball starts decelerating because of gravity. Even if the ball is thrown straight up it will have 1G. Even when it loses all velocity at the top of the throw it still has the effect of one unit of gravity on it.

0Gs also means that the weight of an object is unaffected by it's mass, so a 1000 kg car in space has a technical weight of 0 kg.
A 1000 kg car at rest on earth has a weight of 1000 kg.
A 1000 kg car going around a corner experiencing 2 Gs has a weight of 2000 kg.

Sorry if I seem to be arguing too much, I'm new here.
I know that every object would have 1G, but doesn't the G-Force metre in GT5 only measure sideways G-Force?
When we accelerate or brake, it's possible to get 0 G-Force on the meter.

 

[gambleboyen]

Then what if they had different meters for those special cars?
The FGT, the Ferrari F1s and the X1?

My guess; they couldn't be bothered.

 

[Griffith500]

Sorry if I seem to be arguing too much, I'm new here.
I know that every object would have 1G, but doesn't the G-Force metre in GT5 only measure sideways G-Force?
When we accelerate or brake, it's possible to get 0 G-Force on the meter.

You're right, the gauge only shows lateral g-force. Which, if taken literally, does not really exist (I mean, there could be a lateral component to a reaction force due to gravity, i.e. what makes things roll down hills, but gravity only acts downwards).

The lateral force is expressed in terms of gravity for our ability to relate to it, and the fact that it is "kinematic" (mass-exclusive) instead of "dynamic" (mass-inclusive). 1g is 1g for an elephant, just the same as it is for an ant. If a machine were to try to effect 1g of acceleration onto both of these things, obviously the elephant will require a bigger push - that's absolute force, the "dynamic" measure.

Using a "dynamic" measure of cornering acceleration would completely confuse the lateral acceleration meter, in the same way that allowing it to scale to a range of g values for different cars would also confuse it, probably. Or they couldn't be bothered to invent a new system (e.g. % of maximum cornering acceleration at 1g vertical load, plus max downforce)

Seems kinda silly to be arguing/discussing this much. haha

Earth's Gravity is constant and things don't just magically defy it unless another force is acting on it, Like when you throw a ball for instance; the second you let go the ball starts decelerating because of gravity. Even if the ball is thrown straight up it will have 1G. Even when it loses all velocity at the top of the throw it still has the effect of one unit of gravity on it.

0Gs also means that the weight of an object is unaffected by it's mass, so a 1000 kg car in space has a technical weight of 0 kg.
A 1000 kg car at rest on earth has a weight of 1000 kg.
A 1000 kg car going around a corner experiencing 2 Gs has a weight of 2000 kg.

Not quite. A 1 tonne car at rest has a mass of 1000 kg and a weight of approx. 9810 Newtons (at sea-level) or, 10000 N for ease. Weight is a force, since it can be felt - we cannot feel mass except through interpretation of how hard it is to accelerate; F = ma.

A 1 tonne car in a 2g corner still "weighs" 10000 N, but it also transmits the force of acceleration to get around the corner (2g) into the ground, too, which reacts against the car, pushing it around. Hence, the car might appear to "weigh" 3g, or 30000 N whilst cornering, but strictly speaking, it still weighs 10000 N, because weight is strictly the force of gravity acting on a mass. Furthermore, the force due to cornering is mostly in the horizontal plane, so would not be felt as "weight", rather as friction on the road surface.

 

[dabest2500]

You're right, the gauge only shows lateral g-force. Which, if taken literally, does not really exist (I mean, there could be a lateral component to a reaction force due to gravity, i.e. what makes things roll down hills, but gravity only acts downwards).

The lateral force is expressed in terms of gravity for our ability to relate to it, and the fact that it is "kinematic" (mass-exclusive) instead of "dynamic" (mass-inclusive). 1g is 1g for an elephant, just the same as it is for an ant. If a machine were to try to effect 1g of acceleration onto both of these things, obviously the elephant will require a bigger push - that's absolute force, the "dynamic" measure.

Using a "dynamic" measure of cornering acceleration would completely confuse the lateral acceleration meter, in the same way that allowing it to scale to a range of g values for different cars would also confuse it, probably. Or they couldn't be bothered to invent a new system (e.g. % of maximum cornering acceleration at 1g vertical load, plus max downforce)

They had over 6 years

 

[Griffith500]

They had over 6 years

Longer than that, even. The g-meter was present in GT4, too.
I honestly find it's presence useless (when racing), so I'm not bothered. But it is interesting to see that people take an interest and even get information from it!

 

[dabest2500]

Longer than that, even. The g-meter was present in GT4, too.
I honestly find it's presence useless (when racing), so I'm not bothered. But it is interesting to see that people take an interest and even get information from it!

I find anything interesting when grinding for XP

 

[georgiebest]

Seems kinda silly to be arguing/discussing this much. haha

Earth's Gravity is constant and things don't just magically defy it unless another force is acting on it, Like when you throw a ball for instance; the second you let go the ball starts decelerating because of gravity. Even if the ball is thrown straight up it will have 1G. Even when it loses all velocity at the top of the throw it still has the effect of one unit of gravity on it.

0Gs also means that the weight of an object is unaffected by it's mass, so a 1000 kg car in space has a technical weight of 0 kg.
A 1000 kg car at rest on earth has a weight of 1000 kg.
A 1000 kg car going around a corner experiencing 2 Gs has a weight of 2000 kg.

This isn't correct. The car would not weigh any more. Going around a corner, the G-force is lateral, not downwards. It would have a weight of 1000kg still but have an acceleration equivalent to 2G towards the centre of the radius it is travelling through. If the car weighed more when he turned harder, then technically you could design a car that never ran out of grip as the car would continue to put more and more force down onto the tyres to maintain grip.

Anyway, does anyone actually use this? I didn't want to make a new thread so I searched and found this thread which is pretty old.

I don't understand the point in the metre, it only tells you lateral G-force which is fairly worthless, because it is resultant G-force which determines whether or not the tyres will lose grip, unless of course you are travelling at constant speed.

Then there is the problem that at higher speeds, downforce is greater, therefore available grip increases meaning tyres can withstand more G. This is part of the reason F1 cars can take corners in higher gears with full throttle but will spin out if you floor it through a hair pin.

 

[Cauchy]

You're right, the gauge only shows lateral g-force. Which, if taken literally, does not really exist (I mean, there could be a lateral component to a reaction force due to gravity, i.e. what makes things roll down hills, but gravity only acts downwards).

Huh? Lateral G-force is just the magnitude of the lateral acceleration, explain how this does not exist. G-force, again, is just the magnitude of the acceleration expressed in units of g's, this has nothing to do with gravity other then the units.

 

[dabest2500]

Woah!
A very old thread of mine seems to have been revived

 

[Welsh-Fury]

If the meter went to 8 or even 10 G, you wouldn't get much of a response on the meter when driving more regular cars.

Or the G meter changes with different cars like how the speedometer does with different transmission setups. 2 G's for economy cars, 3-4 G's for sports cars, 5 G's for race cars, 8-10+ for FGT, F1 and X2010.

I don't understand the point in the metre, it only tells you lateral G-force which is fairly worthless, because it is resultant G-force which determines whether or not the tyres will lose grip, unless of course you are travelling at constant speed.

It's primarily used to test setups to cars (To me anyway). With the right suspension setup, without any increase of downforce or softer tires, you can see a small jump in G's your can can pull through a corner. The biggest jump for me was being able to increase by .4-.5 G's in the Veyron's cornering ability with suspension setups alone. That's a difference of going 225mph to 260mph on the banks of Daytona.

 

[Exorcet]

humans cant handle anything higher than 8g's

i also doubt the X1 can pull more than 4g's

Humans have survived 100's of g's. There is no hard limit.

I don't really find the g force meter useful since grip levels are just constants in GT.

One solution though is a readout of the actual g number next to the bar. A bigger issue for me is the tach, the only good tach is the one you get in bumper view. Else where it's a stupid hard to read line.

 

[georgiebest]

Never thought of that application for improving cornering speed, good shout.

Huh? Lateral G-force is just the magnitude of the lateral acceleration, explain how this does not exist. G-force, again, is just the magnitude of the acceleration expressed in units of g's, this has nothing to do with gravity other then the units.

The G-force shown in the game does not exist. Drive the X1 in cockpit view, it has a built in G-force metre on the dash, that one is set up correctly.

When you turn to the left, you are effectively constantly accelerating towards the centre of the radius in which you are moving. This is called centripetal acceleration. There is no such thing as Centrifugal acceleration/force, because if there was we would continue to move in a straight line.

What causes you to feel like you are being pushed outwards when you move in a circle is you're inertia, or momentum. That is a sensation, not an actual force acting on you.

It is the same way as if you were in an elevator accelerating upwards at 1G, it feels like you weight twice as much, because you have an inertia even when at a standstill.

 

[Griffith500]

Huh? Lateral G-force is just the magnitude of the lateral acceleration, explain how this does not exist. G-force, again, is just the magnitude of the acceleration expressed in units of g's, this has nothing to do with gravity other then the units.

I said that.