Understeer problems

[mezano07]

hello guys ,

basically any tuning tips on overcoming understeer ? just the basic one.

thank you

 

[mirial]

Try to keep the rear a bit lower, stiffer and with a little less camber than the front.

By running the rear as low as you can get away with with, will enable you to maximise the stiffness and minimise camber. This in turn means the front can be run a little softer, but also a little bit higher, and with a little bit more camber in order to get those front tyres to bite.

Try to keep everything well balanced at the same time.

 

[ucwepn]

If its a 4wd car try buying the torque split contoller or whatever its called in the drivetrain section and shift more power to the back wheels. Rwd cars can understeer if pushed too hard with not enough front negative camber as the deflection angle of the tyres deforming in hard cornering pushes the sidewalls onto the road which is bad.

 

[Mubble]

Try to keep the rear a bit lower, stiffer and with a little less camber than the front.

By running the rear as low as you can get away with with, will enable you to maximise the stiffness and minimise camber. This in turn means the front can be run a little softer, but also a little bit higher, and with a little bit more camber in order to get those front tyres to bite.

Try to keep everything well balanced at the same time.

Almost, but not quite.



You want the rear slightly higher than the front.

You want camber on the front so that the front tyres grip when put under load in a turn (-1.0 to -1.5 is the norm)

You want the rear dampers to be softer under extension and the front dampers softer under compression (ie. a lower number in the suspension tuning settings). This will allow a better transfer of weight to the front of the car under braking.

A stiffer and higher rear setup will lean towards oversteer, dialling out understeer.

 

[Sohvakettu]

In race cars rising front higher than rear can also cause aerodynamic problems. Considering how common this seems to be in GT5 tuning makes me wonder if this is being modelled though...

 

[mezano07]

so basically to get rid of understeer give the car a little oversteering ? am i right ?

 

[Sohvakettu]

Over and understeer are descriptions for deviations from balanced/neutral behaviour so softening the front might get the car closer to closer to neutral behaviour. If you soften the front enough it goes over the neutral state and becomes oversteer.

 

[HBR-Roadhog]

so basically to get rid of understeer give the car a little oversteering ? am i right ?

Pretty much. Anything that would induce a bit of oversteer will overcome a bit of understeer. The opposite is also true. The trick is to get the car set to a balance between over/under steer that you are comfortable driving. I always lean toward a little oversteer as this is the fastest type of setup provided you can maintain control of the car.

 

[minihulkster]

It may be just me but it seems like in GT5 and in Prologue, suspension tuning setting have no effect whatsoever on over or understeer. It's as if the tuning changes are not even modeled into physics engine. I have even used extreme values to test it out with no discernible difference. I remember in GT3 you would get obvious effects from car tuning. In fact, you could make the car completely undrivable.

 

[dudeeg]

I haven't checked this myself with extreme tunings, but I would be quite amazed if the tuning settings didn't count in the physics engine. Are you sure about this?

 

[HBR-Roadhog]

It may be just me but it seems like in GT5 and in Prologue, suspension tuning setting have no effect whatsoever on over or understeer. It's as if the tuning changes are not even modeled into physics engine. I have even used extreme values to test it out with no discernible difference. I remember in GT3 you would get obvious effects from car tuning. In fact, you could make the car completely undrivable.

It's just you they have a major impact. The only way to truly feel the impact though is by turning the assists off. Things like active steering and Skid Recovery can mask a bad tune and make it seem like nothing has changed.

 

[minihulkster]

It's just you they have a major impact. The only way to truly feel the impact though is by turning the assists off. Things like active steering and Skid Recovery can mask a bad tune and make it seem like nothing has changed.

I don't use assists other than abs at 1. I do not notice any difference with a controller. I'll hook up my DFGT tonight and give it another comparative go. Does anyone have any specific car and tune recommendations that I could test?

 

[Sum1s2pid]

Tuning, tires, brake sooner, blah. Also, just because you can give a car a silly amount of horsepower doesn't mean you should. Keep it sane.

 

[mirial]

Almost, but not quite.



You want the rear slightly higher than the front.

You want camber on the front so that the front tyres grip when put under load in a turn (-1.0 to -1.5 is the norm)

You want the rear dampers to be softer under extension and the front dampers softer under compression (ie. a lower number in the suspension tuning settings). This will allow a better transfer of weight to the front of the car under braking.

A stiffer and higher rear setup will lean towards oversteer, dialling out understeer.

Without asking any specific details about the understeer problem in this thread, it's reasonable to assume that it is about balance. Most cars in the game understeer mid corner and exit.

Increasing the ride height at the rear will decrease the slip angle, but it will be more prone to breaking loose when applying the throttle.

Another thing to be taken into consideration is the mix of mechanical and chemical friction from track to track, tyre to tyre.