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05-07-2007, 04:50 PM,
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protomor
Member
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Posts: 79
Threads: 21
Joined: Apr 2007
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My drift M3 (Garentee this will drift)
After much pacejka hmwk and staring at other setups, this is what I have come up with. The rebound and bounce are guestimates but the rest are true to life setup. Not necessarily stock but from the suspension kit on my car. Try it out with the mouse, i havent tried with just keyboard yet. I had good success on dijon with it.
Let me know what you think.
Code: drive = RWD
[ steering ]
max-angle = 55.19
[ engine ]
position = 1.42, 0.0, -0.24
mass = 180.0
max-power = 1.46e5
peak-engine-rpm = 6750.0
rpm-limit = 7000.0
inertia = 0.25
idle = 0.02
start-rpm = 1000
stall-rpm = -400
fuel-consumption = 1e-9
torque-friction = 0.0003
torque-curve-00 = 1000, 176.26
torque-curve-01 = 2000, 185.75
torque-curve-02 = 2250, 200.66
torque-curve-03 = 2500, 202.02
torque-curve-04 = 2750, 197.95
torque-curve-05 = 3000, 206.08
torque-curve-06 = 3250, 211.51
torque-curve-07 = 3500, 218.29
torque-curve-08 = 3750, 223.71
torque-curve-09 = 4000, 230.49
torque-curve-10 = 4250, 229.13
torque-curve-11 = 4500, 225.07
torque-curve-12 = 4750, 235.91
torque-curve-13 = 5000, 248.11
torque-curve-14 = 5250, 234.56
torque-curve-15 = 5500, 233.2
torque-curve-16 = 5750, 229.13
torque-curve-17 = 6000, 226.42
torque-curve-18 = 6250, 222.35
torque-curve-19 = 6500, 206.08
torque-curve-20 = 6750, 197.95
torque-curve-21 = 7000, 196.59
[ clutch ]
sliding = 0.27
radius = 0.15
area = 0.75
max-pressure = 95400.0
[ transmission ]
gears = 5
gear-ratio-r = -4.23
gear-ratio-1 = 3.72
gear-ratio-2 = 2.40
gear-ratio-3 = 1.77
gear-ratio-4 = 1.26
gear-ratio-5 = 1.00
shift-delay = 0.07
[ differential ]
final-drive = 3.25
anti-slip = 600.0
[ fuel-tank ]
position = -0.26, -0.17, -0.56
capacity = 0.0492
volume = 0.0492
fuel-density = 730.0
[ suspension-front ]
spring-constant = 162000
bounce = 7050
rebound = 9500
travel = 0.32
max-compression-velocity = 10.0
camber = -2.00
caster = 8.00
toe = 0.2
anti-roll = 7000
[ suspension-rear ]
spring-constant = 293000
bounce = 5000
rebound = 9992.14
travel = 0.32
max-compression-velocity = 10.0
camber = -3.00
caster = 0.28
toe = 0.0
anti-roll = 15000
[ tire-front ]
radius = 0.3032
rolling-resistance = 8.0e-3, 6.5e-6
rotational-inertia = 10.0
tread = 0.0
a0=1.1
a1=-46
a2=1845
a3=1095
a4=13
a5=0.013
a6=-0.14
a7=0.14
a8=0.019
a9=-0.019
a10=-0.18
a111=-11
a112=-0.021
a12=0.48
a13=10.2
a13=-2.4
b0=1.35326
b1=-90.00000
b2=1745.00000
b3=23.30000
b4=400.00000
b5=0.00000
b6=0.00680
b7=0.05500
b8=-0.02400
b9=0.01400
b10=0.26000
b11=-86
b12=350
c0=2.10000
c1=-3.90000
c2=-3.90000
c3=-1.26000
c4=-8.20000
c5=0.02500
c6=0.00000
c7=0.04400
c8=-0.58000
c9=0.18000
c10=0.04300
c11=0.04800
c12=-0.00350
c13=-0.18000
c14=0.14000
c15=-1.02900
c16=0.27000
c17=-1.10000
[ tire-rear ]
radius = 0.3032
rolling-resistance = 8.0e-3, 6.5e-6
rotational-inertia = 10.0
tread = 0.0
a0=1.1
a1=-46
a2=1845
a3=1095
a4=13
a5=0.013
a6=-0.14
a7=0.14
a8=0.019
a9=-0.019
a10=-0.18
a111=-11
a112=-0.021
a12=0.48
a13=10.2
a13=-2.4
b0=1.35326
b1=-90.00000
b2=1745.00000
b3=23.30000
b4=400.00000
b5=0.00000
b6=0.00680
b7=0.05500
b8=-0.02400
b9=0.01400
b10=0.26000
b11=-86
b12=350
c0=2.10000
c1=-3.90000
c2=-3.90000
c3=-1.26000
c4=-8.20000
c5=0.02500
c6=0.00000
c7=0.04400
c8=-0.58000
c9=0.18000
c10=0.04300
c11=0.04800
c12=-0.00350
c13=-0.18000
c14=0.14000
c15=-1.02900
c16=0.27000
c17=-1.10000
[ brakes-front ]
friction = 0.73
max-pressure = 2.5e6
bias = 0.61
radius = 0.17
area = 0.015
[ brakes-rear ]
friction = 0.73
max-pressure = 3.5e6
bias = 0.39
radius = 0.14
area = 0.015
handbrake = 4.0
[ driver ]
position = 0, 0.37, -0.03
mass = 90.0
view-position = -0.02, 0.37, 0.35
hood-mounted-view-position = 0.88, 0, 0.21
[ drag ]
position = 0.0, 0.0, 0.2
frontal-area = 2
drag-coefficient = 0.3
[ wing-front ]
position = 1.9, 0.0, 0.60
frontal-area = 0.2
drag-coefficient = 0.0
surface-area = 0.3
lift-coefficient = -0.5
efficiency = 0.95
[ wing-rear ]
position = -2.14, 0.0, 0.37
frontal-area = 0.05
drag-coefficient = 0.0
surface-area = 0.5
lift-coefficient = -2
efficiency = 0.95
[ wheel-FR ]
position = 1.34, -0.73, -0.44
roll-height = 0.325
mass = 19
restitution = 0.1
[ suspension-FR ]
position = 1.34, -0.69, -0.07
hinge = 0,0,0
[ wheel-FL ]
position = 1.34, 0.71, -0.44
roll-height = 0.325
mass = 19
restitution = 0.1
[ suspension-FL ]
position = 1.34, 0.67, -0.07
hinge = 0,0,0
[ wheel-RR ]
position = -1.24, -0.71, -0.44
roll-height = 0.340
mass = 19
restitution = 0.1
[ suspension-RR ]
position = -1.24, -0.67, -0.07
hinge = -1.1,0.2,0
[ wheel-RL ]
position = -1.24, 0.71, -0.44
roll-height = 0.340
mass = 19
restitution = 0.1
[ suspension-RL ]
position = -1.24, 0.67, -0.07
hinge = -1.1,-0.2,0
[ contact-points ]
# used to find the bounds of the car (for collisions)
# also play into the weight distribution and balance
mass = 0.05
position-00 = 2.35, 0.0, -0.6
position-01 = 2.31, 0.48, -0.6
position-02 = 2.31, -0.48, -0.6
position-03 = 2.14, 0.86, -0.6
position-04 = 2.14, -0.86, -0.6
position-05 = 2.0, 0.96, -0.6
position-06 = 2.0, -0.96, -0.6
position-07 = 0.52, 0.97, 0.22
position-08 = 0.52, -0.97, 0.22
position-09 = -1.87, 0.95, -0.6
position-10 = -1.87, -0.95, -0.6
position-11 = -2.29, 0.43, -0.53
position-12 = -2.29, -0.43, -0.53
position-13 = -2.36, 0.30, -0.20
position-14 = -2.36, -0.30, -0.20
position-15 = -2.3, 0.84, 0.56
position-16 = -2.3, -0.84, 0.56
# these are used to calculate the weight distribution and balance
[ particle-00 ]
mass = 25.0
position = -1.35, 0.0, -0.47
[ particle-01 ]
mass = 50.0
position = 0.96, 0.0, -0.47
[ particle-02 ]
mass = 230.0
position = -1.3, 0.5, 0.09
[ particle-03 ]
mass = 230.0
position = -1.3, -0.5, 0.09
[ particle-04 ]
mass = 200.0
position = 1.6, 0.45, -0.13
[ particle-05 ]
mass = 200.0
position = 1.6, -0.45, -0.13
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05-08-2007, 12:19 AM,
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protomor
Member
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Posts: 79
Threads: 21
Joined: Apr 2007
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You using the auto tranny? i do manual. I havent really fixed up the transmission settings.
Do you have any suggestions on what to change? I think its still kind of hard to keep going and transition but I cant think of what I can change on the car to fix that.
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05-08-2007, 12:39 AM,
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protomor
Member
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Posts: 79
Threads: 21
Joined: Apr 2007
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thelusiv Wrote:I think the shift delay is too low, but I do like the setup. It's very easy to drift. I like the tire feel. I guess 55 degrees is really a little high for the steering angle to be realistic, right?
The shift delay is the default setting. I just upped the clutch pressure. 55 degrees is quite excessive seeing as most cars dont get to 40. But that was the way I compensated for the inability to change the sensitivity of the mouse. I try never go get to max angle.
Someone with a wheel wanna try this out?
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05-08-2007, 10:57 PM,
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protomor
Member
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Posts: 79
Threads: 21
Joined: Apr 2007
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joevenzon Wrote:I think the clutch settings just need to be tweaked... the clutch pressure seems much too high now. I set it back to the old clutch pressure and that seems better to me. The handling is great, though... it actually oversteers without effort! It could probably use a little refinement, but this is much much closer to a drift setup than any of our cars have so far.
I had the clutch setup more for testing than realism. Im still tweaking stuff and making sure the car is in gear is paramount.
Oversteering without effort with my setup is actually pretty realistic. The old suspension setup gave you slight understeer at all turning. Mine gives you slight oversteer under all turning. I would like it to take a bit more effort for initial turn in but that would basically be tuning suspension settings.
FYI these suspension settings are basically what I have on my car now except I have more caster and camber. It will basically drift like this if you power into a corner. :wink:
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