# Engine definition. Dimensional keys state their units.
schema_version = 2
id = "fivehundred"
name = "500 cc / big single"
category = "Two-stroke / 500 cc"
description = "Concept single / transported carb fuel"
order = 16
cycle = "two_stroke"

[simulation]
cells_per_meter = 100.0

[two_stroke]
reed_pipe_diameter_mm = 40
transfer_pipe_diameter_mm = 32
initial_rpm = 3000.0
starter_torque_nm = 8.0
maximum_load_torque_nm = 10.0
crankshaft_inertia_kg_m2 = 0.04002316
bore_mm = 86.0
carburetor_diameter_mm = 41.0
exhaust = "racing"
exhaust_duration_deg = 190.0
exhaust_width_mm = 57.15746
friction_bar = 0.4
friction_bar_per_mps = 0.09
friction_bar_per_mps2 = 0.0009
idle_minimum_advance_deg = -10.0
idle_slide_opening = 0.045
idle_spark_gain = 0.05
jet_scale = 1.0
main_jet_scale = 1.7504
minimum_burn_s = 0.001270166
needle_jet_scale = 1.06
needle_low_scale = 3.04
needle_mid_scale = 0.8
needle_off_idle_scale = 12.0
needle_quarter_scale = 1.4
needle_tip_scale = 5.0
needle_transition_scale = 9.0
needle_upper_scale = 0.76
pilot_jet_scale = 0.75
pilot_tip_scale = 1.0
pilot_transition_scale = 1.0
rod_mm = 174.6478
stroke_mm = 86.0
transfer_duration_deg = 130.0
transfer_width_mm = 79.38537
trapped_compression = 8.2
chamber_sections_mm = [[254.0332, 57.15746, 57.15746], [285.7873, 57.15746, 95.26245], [301.6644, 95.26245, 166.7093], [206.402, 166.7093, 166.7093], [333.4185, 166.7093, 34.92956], [381.0498, 34.92956, 34.92956]]

[ecu]
idle_control = "fixed"
idle_rpm = 3000.0
idle_max_opening = 0.3
throttle_time_constant_s = 0.0002
throttle_rate = 5000.0
rev_limit_enabled = false
rev_limit_fuel_cut_enabled = false
overrun_cut_rpm = 5000.0
overrun_resume_rpm = 3500.0
overrun_fuel_cut_enabled = false
overrun_ignition_cut_enabled = true
ignition_map = [[0, 10], [3000, 18], [6000, 24], [9000, 18], [11000, 12], [13000, 6], [15000, 2], [18000, 0]]

[vehicle]
primary_reduction = 3.368421
final_drive_ratio = 3.769231
mass_kg = 170
wheel_radius_mm = 331.3
gear_ratios = [2.384615, 1.933333, 1.588235, 1.352941, 1.176471, 1.055556]

[[geometry.cylinders]]
origin_mm = [ 0, 0, 0 ]
tilt_deg = 0.0

# intake
[[geometry.pipes]]
index = 0
points_mm = [
  [ -251.5498, 49.468, 0 ],
  [ -151.5498, 49.468, 0 ]
]

# reed passage
[[geometry.pipes]]
index = 1
points_mm = [
  [ -72.1797, 49.468, 0 ],
  [ -42.1797, 49.468, 0 ]
]

# transfer passage
[[geometry.pipes]]
index = 2
points_mm = [
  [ 42.1797, 91.6478, 0 ],
  [ 46.452, 94.3834, 0 ],
  [ 50.1614, 97.1292, 0 ],
  [ 53.3081, 99.8853, 0 ],
  [ 55.8919, 102.6516, 0 ],
  [ 57.913, 105.4282, 0 ],
  [ 59.3712, 108.215, 0 ],
  [ 60.2667, 111.0122, 0 ],
  [ 60.5993, 113.8195, 0 ],
  [ 60.3692, 116.6372, 0 ],
  [ 59.5763, 119.465, 0 ],
  [ 58.2206, 122.3032, 0 ],
  [ 56.302, 125.1516, 0 ],
  [ 53.8207, 128.0103, 0 ],
  [ 50.7766, 130.8792, 0 ],
  [ 47.1697, 133.7584, 0 ],
  [ 43, 136.6478, 0 ]
]

# exhaust chamber
[[geometry.pipes]]
index = 3
points_mm = [
  [ 43, 192.6478, 0 ],
  [ 281.7131, 105.7633, 0 ],
  [ 402.492, -153.248, 0 ],
  [ 229.4644, -400.3569, 0 ],
  [ 23.0624, -400.3569, 0 ],
  [ -290.2485, -286.3211, 0 ],
  [ -671.2983, -286.321, 0 ]
]

[[geometry.volumes]]
id = "intake_plenum"
center_mm = [ -111.8648, 49.468, 0 ]
size_mm = [ 79.3701, 79.3701, 79.3701 ]

[[geometry.volumes]]
id = "crankcase"
center_mm = [ 0, 49.468, 0 ]
size_mm = [ 84.3595, 84.3595, 84.3595 ]