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454 vtec

Created 2 years agoDiff never expires

4 removals

258 lines

17 additions

270 lines

import "engine_sim.mr"

units units()

constants constants()

impulse_response_library ir_lib()

private node wires {

output wire1: ignition_wire();

output wire2: ignition_wire();

output wire3: ignition_wire();

output wire4: ignition_wire();

output wire5: ignition_wire();

output wire6: ignition_wire();

output wire7: ignition_wire();

output wire8: ignition_wire();

}

public node chevy_bbc_peanut_port_head {

input intake_camshaft;

input exhaust_camshaft;

input vtec_intake_camshaft;

input vtec_exhaust_camshaft;

input flip_display: false;

alias output __out: head;

function intake_flow(50 * units.thou)

intake_flow

.add_flow_sample(0, 0)

.add_flow_sample(50, 25)

.add_flow_sample(100, 75)

.add_flow_sample(150, 100)

.add_flow_sample(200, 130)

.add_flow_sample(250, 180)

.add_flow_sample(300, 190)

.add_flow_sample(350, 220)

.add_flow_sample(400, 240)

.add_flow_sample(450, 250)

.add_flow_sample(500, 260)

.add_flow_sample(550, 260)

.add_flow_sample(600, 260)

.add_flow_sample(650, 255)

.add_flow_sample(700, 250)

function exhaust_flow(50 * units.thou)

exhaust_flow

.add_flow_sample(0, 0)

.add_flow_sample(50, 25)

.add_flow_sample(100, 50)

.add_flow_sample(150, 75)

.add_flow_sample(200, 100)

.add_flow_sample(250, 125)

.add_flow_sample(300, 160)

.add_flow_sample(350, 175)

.add_flow_sample(400, 180)

.add_flow_sample(450, 190)

.add_flow_sample(500, 200)

.add_flow_sample(550, 205)

.add_flow_sample(600, 210)

.add_flow_sample(650, 210)

.add_flow_sample(700, 210)

cylinder_head head(

generic_cylinder_head head(

chamber_volume: 118.0 * units.cc,

intake_runner_volume: 189.0 * units.cc,

intake_runner_cross_section_area: 37.8 * units.cm2,

intake_port_flow: intake_flow,

exhaust_port_flow: exhaust_flow,

intake_camshaft: intake_camshaft,

valvetrain: vtec_valvetrain(

exhaust_camshaft: exhaust_camshaft,

min_rpm: 3000 * units.rpm,

intake_camshaft: intake_camshaft,

exhaust_camshaft: exhaust_camshaft,

vtec_intake_camshaft: vtec_intake_camshaft,

vtec_exhaust_camshaft: vtec_exhaust_camshaft

flip_display: flip_display

)

}

public node chev_truck_454 {

public node chev_truck_454_vtec {

alias output __out: engine;

wires wires()

engine engine(

name: "Chev. 454 V8",

starter_torque: 200 * units.lb_ft,

redline: 5500 * units.rpm,

fuel: fuel(

max_turbulence_effect: 3.0,

burning_efficiency_randomness: 0.5,

max_burning_efficiency: 0.85),

throttle_gamma: 1.5

)

crankshaft c0(

throw: 2.0 * units.inch,

flywheel_mass: 29 * 2 * units.lb,

mass: 75 * units.lb,

friction_torque: 10.0 * units.lb_ft,

moment_of_inertia: 0.22986844776863666 * 2,

position_x: 0.0,

position_y: 0.0,

tdc: constants.pi / 4

)

rod_journal rj0(angle: 0.0)

rod_journal rj1(angle: -constants.pi / 2)

rod_journal rj2(angle: -3.0 * constants.pi / 2)

rod_journal rj3(angle: constants.pi)

.add_rod_journal(rj0)

.add_rod_journal(rj1)

.add_rod_journal(rj2)

.add_rod_journal(rj3)

piston_parameters piston_params(

mass: 880 * units.g,

blowby: 0,

compression_height: 1.640 * units.inch,

wrist_pin_position: 0.0,

displacement: 0.0

)

connecting_rod_parameters cr_params(

mass: 785.0 * units.g,

moment_of_inertia: 0.0015884918028487504,

center_of_mass: 0.0,

length: 6.135 * units.inch

)

cylinder_bank_parameters bank_params(

bore: 4.25 * units.inch,

deck_height: 9.8 * units.inch

)

chevy_bbc_stock_intake intake(

carburetor_cfm: 650.0,

idle_flow_rate_cfm: 0.007,

idle_throttle_plate_position: 0.991

)

exhaust_system_parameters es_params(

outlet_flow_rate: k_carb(550.0),

primary_tube_length: 10.0 * units.inch,

primary_flow_rate: k_carb(90.0),

velocity_decay: 1.0, //0.5

volume: 50.0 * units.L

)

exhaust_system exhaust0(es_params, audio_volume: 1.0, impulse_response: ir_lib.default_0)

exhaust_system exhaust1(es_params, audio_volume: 0.1, impulse_response: ir_lib.default_0)

cylinder_bank b0(bank_params, angle: -45 * units.deg)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.2)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj0,

intake: intake,

exhaust_system: exhaust0,

ignition_wire: wires.wire1

)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.6)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj1,

intake: intake,

exhaust_system: exhaust0,

ignition_wire: wires.wire3

)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.6)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj2,

intake: intake,

exhaust_system: exhaust0,

ignition_wire: wires.wire5

)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.4)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj3,

intake: intake,

exhaust_system: exhaust0,

ignition_wire: wires.wire7

)

cylinder_bank b1(bank_params, angle: 45.0 * units.deg)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.2)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj0,

intake: intake,

exhaust_system: exhaust1,

ignition_wire: wires.wire2

)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.2)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj1,

intake: intake,

exhaust_system: exhaust1,

ignition_wire: wires.wire4

)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.6)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj2,

intake: intake,

exhaust_system: exhaust1,

ignition_wire: wires.wire6

)

.add_cylinder(

piston: piston(piston_params, blowby: k_28inH2O(0.6)),

connecting_rod: connecting_rod(cr_params),

rod_journal: rj3,

intake: intake,

exhaust_system: exhaust1,

ignition_wire: wires.wire8

)

engine

.add_cylinder_bank(b0)

.add_cylinder_bank(b1)

engine.add_crankshaft(c0)

chevy_454_stock_camshaft camshaft()

comp_cams_magnum_11_470_8 vtec_camshaft()

b0.set_cylinder_head (

chevy_bbc_peanut_port_head(

intake_camshaft: camshaft.intake_cam_0,

exhaust_camshaft: camshaft.exhaust_cam_0

exhaust_camshaft: camshaft.exhaust_cam_0,

vtec_intake_camshaft: vtec_camshaft.intake_cam_0,

vtec_exhaust_camshaft: vtec_camshaft.exhaust_cam_0

)

b1.set_cylinder_head (

chevy_bbc_peanut_port_head(

intake_camshaft: camshaft.intake_cam_1,

exhaust_camshaft: camshaft.exhaust_cam_1,

vtec_intake_camshaft: vtec_camshaft.intake_cam_1,

vtec_exhaust_camshaft: vtec_camshaft.exhaust_cam_1,

flip_display: true

)

function timing_curve(1000 * units.rpm)

timing_curve

.add_sample(0000 * units.rpm, 12 * units.deg)

.add_sample(1000 * units.rpm, 12 * units.deg)

.add_sample(2000 * units.rpm, 20 * units.deg)

.add_sample(3000 * units.rpm, 30 * units.deg)

.add_sample(4000 * units.rpm, 38 * units.deg)

.add_sample(5000 * units.rpm, 38 * units.deg)

.add_sample(6000 * units.rpm, 38 * units.deg)

engine.add_ignition_module(

chevy_bbc_distributor(

wires: wires,

timing_curve: timing_curve,

rev_limit: 7000 * units.rpm

)

}

Saved diffs

Original text

Open file

import "engine_sim.mr"

units units()
constants constants()
impulse_response_library ir_lib()

private node wires {
    output wire1: ignition_wire();
    output wire2: ignition_wire();
    output wire3: ignition_wire();
    output wire4: ignition_wire();
    output wire5: ignition_wire();
    output wire6: ignition_wire();
    output wire7: ignition_wire();
    output wire8: ignition_wire();
}

public node chevy_bbc_peanut_port_head {
    input intake_camshaft;
    input exhaust_camshaft;
    input flip_display: false;
    alias output __out: head;

function intake_flow(50 * units.thou)
    intake_flow
        .add_flow_sample(0, 0)
        .add_flow_sample(50, 25)
        .add_flow_sample(100, 75)
        .add_flow_sample(150, 100)
        .add_flow_sample(200, 130)
        .add_flow_sample(250, 180)
        .add_flow_sample(300, 190)
        .add_flow_sample(350, 220)
        .add_flow_sample(400, 240)
        .add_flow_sample(450, 250)
        .add_flow_sample(500, 260)
        .add_flow_sample(550, 260)
        .add_flow_sample(600, 260)
        .add_flow_sample(650, 255)
        .add_flow_sample(700, 250)

function exhaust_flow(50 * units.thou)
    exhaust_flow
        .add_flow_sample(0, 0)
        .add_flow_sample(50, 25)
        .add_flow_sample(100, 50)
        .add_flow_sample(150, 75)
        .add_flow_sample(200, 100)
        .add_flow_sample(250, 125)
        .add_flow_sample(300, 160)
        .add_flow_sample(350, 175)
        .add_flow_sample(400, 180)
        .add_flow_sample(450, 190)
        .add_flow_sample(500, 200)
        .add_flow_sample(550, 205)
        .add_flow_sample(600, 210)
        .add_flow_sample(650, 210)
        .add_flow_sample(700, 210)

cylinder_head head(
        chamber_volume: 118.0 * units.cc,
        intake_runner_volume: 189.0 * units.cc,
        intake_runner_cross_section_area: 37.8 * units.cm2,

intake_port_flow: intake_flow,
        exhaust_port_flow: exhaust_flow,
        intake_camshaft: intake_camshaft,
        exhaust_camshaft: exhaust_camshaft,
        flip_display: flip_display
    )
}

public node chev_truck_454 {
    alias output __out: engine;

wires wires()

engine engine(
        name: "Chev. 454 V8",
        starter_torque: 200 * units.lb_ft,
        redline: 5500 * units.rpm,
        fuel: fuel(
            max_turbulence_effect: 3.0,
            burning_efficiency_randomness: 0.5,
            max_burning_efficiency: 0.85),
        throttle_gamma: 1.5
    )

crankshaft c0(
        throw: 2.0 * units.inch,
        flywheel_mass: 29 * 2 * units.lb,
        mass: 75 * units.lb,
        friction_torque: 10.0 * units.lb_ft,
        moment_of_inertia: 0.22986844776863666 * 2,
        position_x: 0.0,
        position_y: 0.0,
        tdc: constants.pi / 4
    )

rod_journal rj0(angle: 0.0)
    rod_journal rj1(angle: -constants.pi / 2)
    rod_journal rj2(angle: -3.0 * constants.pi / 2)
    rod_journal rj3(angle: constants.pi)

c0
        .add_rod_journal(rj0)
        .add_rod_journal(rj1)
        .add_rod_journal(rj2)
        .add_rod_journal(rj3)

piston_parameters piston_params(
        mass: 880 * units.g,
        blowby: 0,
        compression_height: 1.640 * units.inch,
        wrist_pin_position: 0.0,
        displacement: 0.0
    )

connecting_rod_parameters cr_params(
        mass: 785.0 * units.g,
        moment_of_inertia: 0.0015884918028487504,
        center_of_mass: 0.0,
        length: 6.135 * units.inch
    )

cylinder_bank_parameters bank_params(
        bore: 4.25 * units.inch,
        deck_height: 9.8 * units.inch
    )

chevy_bbc_stock_intake intake(
        carburetor_cfm: 650.0,
        idle_flow_rate_cfm: 0.007,
        idle_throttle_plate_position: 0.991
    )

exhaust_system_parameters es_params(
        outlet_flow_rate: k_carb(550.0),
        primary_tube_length: 10.0 * units.inch,
        primary_flow_rate: k_carb(90.0),
        velocity_decay: 1.0, //0.5
        volume: 50.0 * units.L
    )

exhaust_system exhaust0(es_params, audio_volume: 1.0, impulse_response: ir_lib.default_0)
    exhaust_system exhaust1(es_params, audio_volume: 0.1, impulse_response: ir_lib.default_0)

cylinder_bank b0(bank_params, angle: -45 * units.deg)
    b0
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.2)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj0,
            intake: intake,
            exhaust_system: exhaust0,
            ignition_wire: wires.wire1
        )
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.6)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj1,
            intake: intake,
            exhaust_system: exhaust0,
            ignition_wire: wires.wire3
        )
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.6)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj2,
            intake: intake,
            exhaust_system: exhaust0,
            ignition_wire: wires.wire5
        )
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.4)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj3,
            intake: intake,
            exhaust_system: exhaust0,
            ignition_wire: wires.wire7
        )

cylinder_bank b1(bank_params, angle: 45.0 * units.deg)
    b1
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.2)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj0,
            intake: intake,
            exhaust_system: exhaust1,
            ignition_wire: wires.wire2
        )
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.2)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj1,
            intake: intake,
            exhaust_system: exhaust1,
            ignition_wire: wires.wire4
        )
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.6)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj2,
            intake: intake,
            exhaust_system: exhaust1,
            ignition_wire: wires.wire6
        )
        .add_cylinder(
            piston: piston(piston_params, blowby: k_28inH2O(0.6)),
            connecting_rod: connecting_rod(cr_params),
            rod_journal: rj3,
            intake: intake,
            exhaust_system: exhaust1,
            ignition_wire: wires.wire8
        )

engine
        .add_cylinder_bank(b0)
        .add_cylinder_bank(b1)

engine.add_crankshaft(c0)

chevy_454_stock_camshaft camshaft()

b0.set_cylinder_head (
        chevy_bbc_peanut_port_head(
            intake_camshaft: camshaft.intake_cam_0,
            exhaust_camshaft: camshaft.exhaust_cam_0
        )
    )
    b1.set_cylinder_head (
        chevy_bbc_peanut_port_head(
            intake_camshaft: camshaft.intake_cam_1,
            exhaust_camshaft: camshaft.exhaust_cam_1,
            flip_display: true
        )
    )

function timing_curve(1000 * units.rpm)
    timing_curve
        .add_sample(0000 * units.rpm, 12 * units.deg)
        .add_sample(1000 * units.rpm, 12 * units.deg)
        .add_sample(2000 * units.rpm, 20 * units.deg)
        .add_sample(3000 * units.rpm, 30 * units.deg)
        .add_sample(4000 * units.rpm, 38 * units.deg)
        .add_sample(5000 * units.rpm, 38 * units.deg)
        .add_sample(6000 * units.rpm, 38 * units.deg)

engine.add_ignition_module(
        chevy_bbc_distributor(
            wires: wires,
            timing_curve: timing_curve,
            rev_limit: 7000 * units.rpm
        )
    )
}

Changed text

Open file

import "engine_sim.mr"

units units()
constants constants()
impulse_response_library ir_lib()

public node chevy_bbc_peanut_port_head {
    input intake_camshaft;
    input exhaust_camshaft;
    input vtec_intake_camshaft;
    input vtec_exhaust_camshaft;
    input flip_display: false;
    alias output __out: head;

generic_cylinder_head head(
        chamber_volume: 118.0 * units.cc,
        intake_runner_volume: 189.0 * units.cc,
        intake_runner_cross_section_area: 37.8 * units.cm2,

intake_port_flow: intake_flow,
        exhaust_port_flow: exhaust_flow,
        valvetrain: vtec_valvetrain(
            min_rpm: 3000 * units.rpm,
            intake_camshaft: intake_camshaft,
            exhaust_camshaft: exhaust_camshaft,
            vtec_intake_camshaft: vtec_intake_camshaft,
            vtec_exhaust_camshaft: vtec_exhaust_camshaft
        ),
        flip_display: flip_display
    )
}

public node chev_truck_454_vtec {
    alias output __out: engine;