"Jan Verschueren" <jan.NO_SPAM.verschue...@pandora.be> wrote in message
news:N%koa.53269$t_2.4934@afrodite.telenet-ops.be...
> "GBB" wrote...
> > Imo the problem isn't low speed grip, which from cornering
> > speed and g-force is about right, it's low speed mechanical
> > balance.
> > The front tyre grip is too high compared to the rear 49.2/
> > 50.7 that makes the car very unstable at low speed, at
> > medium and high speed the aerodynamic grip balances the car.
> > I've modified the generic.tbc for my own use to what I feel
> > is a better balance 48.7/51.3 It's probably still a bit too
> > forward biased but I feel it gives the car a much better
> > balance and feel, try it if you want:
> > <snip>
> > I also made a change to the springrates, closer to values
> > I found on the net.
> Now *this* I like... the tyre acts as if it's made out of rubber all the
> time instead of reverting to silasto in certain conditions. A *lot* more
> crisp and, though this may be imagination, more progressive in wear as
well.
> Car now "skates" the front a bit, but I assume this can be dialed out by
> setup.
> Thanks!! -Have you done the other compounds too?
> Jan.
> =---
> PS.: now I need to search my backups for Hal's recommendations on how to
not
> make the kerbs act as "sandpapery" as they do and then I'll be all set.
Glad you like it, the progressive wear thing is probably because the car is
more balanced, I haven't made any changes to the wear rate.
You'll need to change your setups a bit, probably a slightly softer front
end with a few clicks more wing and with the change in tyre springrates the
whole car needs raising a bit to keep it from dragging. I feel that's more
realistic as you could get away with running the car way too low before.
I've done all the other compounds but not much testing with them. I've also
got some ideas for doing Bridgestone/Michelins after watching Imola this
weekend, they seem to have quite different damping rates.
Here's the full lot:
[COMPOUND]
Name="Hard Compound"
Front:
DryLatLong=(1.673, 1.847) // Lateral/longitudinal coefficients in dry
weather
WetLatLong=(1.244, 1.410) // Lateral/longitudinal coefficients in wet
weather
Radius=0.325 // Radius of tire
RadiusRPM=4.65e-6 // Increased radius per unit RPM
SpringBase=44500.0 // Base spring rate with no pressure
SpringkPa=983.0 // Spring rate per unit pressure
Damper=545.0 // Damping rate of tire
LoadSens=30500.0 // Load sensitivity of tire
LatPeak=(0.10, 0.21, 24415.0) // Slip range where lateral peak force occurs
depending on load
LongPeak=(0.10, 0.21, 24415.0) // Slip range where longitudinal peak force
occurs depending on load
LatCurve="Default" // Slip angle curve (data uses normalized
angle)
BrakingCurve="Default" // Slip ratio curve under braking
TractiveCurve="Default" // Slip ratio curve under acceleration
Camber=(3.05, 0.10) // Peak camber angle and additional lateral
force gained
RollingHeat=12.3 // Heat caused by rolling (deg C per unit
rotation times deflection)
FrictionHeat=0.385 // Heat caused from friction (deg C per unit
force lost thru slippage)
WearRate=0.837e-7 // Wear rate constant
Softness=0.5 // Softness is now just for AI use
AILoad=18000.0 // Simple load sensitivity for AI vehicles
AIGripMult=0.975 // Grip multiplier for AI vehicles (due to
tire model simplification)
OptimumTemp=114.0 // Optimum operating temperature for peak
forces (Celsius)
OptimumPressure=143.0 // Optimum warm pressure for tire to remain
flat on ground
Rear:
DryLatLong=(1.762, 1.898)
WetLatLong=(1.309, 1.447)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=66810.0
SpringkPa=1024.0
Damper=610.0
LoadSens=30500.0
LatPeak=(0.09, 0.19, 24415.0)
LongPeak=(0.09, 0.19, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(2.05, 0.08)
RollingHeat=10.0
FrictionHeat=0.252
WearRate=0.545e-7
Softness=0.5
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=114.0
OptimumPressure=135.0
[COMPOUND]
Name="Soft Compound"
Front:
DryLatLong=(1.723, 1.898)
WetLatLong=(1.304, 1.467)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=44500.0
SpringkPa=983.0
Damper=545.0
LoadSens=30500.0
LatPeak=(0.10, 0.21, 24415.0)
LongPeak=(0.10, 0.21, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(3.05, 0.10)
RollingHeat=14.8
FrictionHeat=0.390
WearRate=1.006e-7
Softness=0.6
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=112.0
OptimumPressure=143.0
Rear:
DryLatLong=(1.814, 1.873)
WetLatLong=(1.373, 1.422)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=66810.0
SpringkPa=1024.0
Damper=610.0
LoadSens=30500.0
LatPeak=(0.09, 0.19, 24415.0)
LongPeak=(0.09, 0.19, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(2.05, 0.08)
RollingHeat=12.0
FrictionHeat=0.255
WearRate=0.658e-7
Softness=0.6
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=112.0
OptimumPressure=135.0
[COMPOUND]
Name="Intermediate Compound"
WetWeather=1
Front:
DryLatLong=(1.624, 1.796)
WetLatLong=(1.475, 1.643)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=44500.0
SpringkPa=983.0
Damper=545.0
LoadSens=30500.0
LatPeak=(0.10, 0.21, 24415.0)
LongPeak=(0.10, 0.21, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(3.05, 0.10)
RollingHeat=18.5
FrictionHeat=0.397
WearRate=1.261e-7
Softness=0.75
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=109.0
OptimumPressure=143.0
Rear:
DryLatLong=(1.709, 1.847)
WetLatLong=(1.552, 1.694)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=66810.0
SpringkPa=1024.0
Damper=610.0
LoadSens=30500.0
LatPeak=(0.09, 0.19, 24415.0)
LongPeak=(0.09, 0.19, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(2.05, 0.08)
RollingHeat=15.1
FrictionHeat=0.260
WearRate=0.829e-7
Softness=0.75
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=109.0
OptimumPressure=135.0
[COMPOUND]
Name="Wet Compound"
WetWeather=1
Front:
DryLatLong=(1.391, 1.570)
WetLatLong=(1.574, 1.745)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=44500.0
SpringkPa=983.0
Damper=545.0
LoadSens=30500.0
LatPeak=(0.10, 0.21, 24415.0)
LongPeak=(0.10, 0.21, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(3.05, 0.10)
RollingHeat=22.2
FrictionHeat=0.405
WearRate=1.522e-7
Softness=0.9
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=107.0
OptimumPressure=143.0
Rear:
DryLatLong=(1.464, 1.594)
WetLatLong=(1.657, 1.796)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=66810.0
SpringkPa=1024.0
Damper=610.0
LoadSens=30500.0
LatPeak=(0.09, 0.19, 24415.0)
LongPeak=(0.09, 0.19, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(2.05, 0.08)
RollingHeat=18.0
FrictionHeat=0.264
WearRate=1.005e-7
Softness=0.9
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=107.0
OptimumPressure=135.0
[COMPOUND]
Name="Monsoon Compound"
WetWeather=1
Front:
DryLatLong=(1.293, 1.410)
WetLatLong=(1.624, 1.796)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=44500.0
SpringkPa=983.0
Damper=545.0
LoadSens=30500.0
LatPeak=(0.10, 0.21, 24415.0)
LongPeak=(0.10, 0.21, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
RollingHeat=24.7
FrictionHeat=0.410
WearRate=1.694e-7
Camber=(3.05, 0.10)
Softness=1.0
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=105.0
OptimumPressure=143.0
Rear:
DryLatLong=(1.362, 1.553)
WetLatLong=(1.709, 1.841)
Radius=0.325
RadiusRPM=4.65e-6
SpringBase=66810.0
SpringkPa=1024.0
Damper=610.0
LoadSens=30500.0
LatPeak=(0.09, 0.19, 24415.0)
LongPeak=(0.09, 0.19, 24415.0)
LatCurve="Default"
BrakingCurve="Default"
TractiveCurve="Default"
Camber=(2.05, 0.08)
RollingHeat=20.1
FrictionHeat=0.267
WearRate=1.118e-7
Softness=1.0
AILoad=18000.0
AIGripMult=0.975
OptimumTemp=105.0
OptimumPressure=135.0
