How does the gear ratio work? I’m trying to increase engine power but without pushing the engine too hard?

[VERSION]

major = 1

minor = 0

[GENERALENGINEDATA]

engine_type = 0 ; 0=Piston, 1=Jet, 2=None, 3=Helo-Turbine, 4=Rocket, 5=Turboprop

fuel_flow_scalar = 1 ; Fuel flow scalar

min_throttle_limit = 0 ; Minimum percent throttle. Generally negative for turbine reverser

master_ignition_switch = 0

starter_type = 0 ; 0=Electric, 1=Manual, 2=Bleed Air

max_contrail_temperature = -1

Engine.0 = -5.3, 0, 3.2

ThrustAnglesPitchHeading.0 = 0, 0

[PISTON_ENGINE]

power_scalar = 1 ; Piston power scalar

cylinder_displacement = 20.6 ; Cubic inches per cylinder

compression_ratio = 11 ; Compression ratio

number_of_cylinders = 4 ; Number of cylinders

max_rated_rpm = 5800 ; Max rated RPM

max_rated_hp = 150 ; Max rated HP

min_cruise_rpm = 0

max_cruise_rpm = 5500

max_indicated_rpm = 7000

fuel_metering_type = 0 ; 0=Fuel Injected, 1=Gravity Carburetor, 2=Aerobatic Carburetor

cooling_type = 1 ; 0=Cooling type Air, 1=Cooling type Liquid

normalized_starter_torque = 0.3 ; Starter torque factor

starter_time = 1.5 ; Time the Starter stays active when pressed

turbocharged = 0 ; Is it turbocharged? 0=FALSE, 1=TRUE

max_design_mp = 38 ; Max design manifold pressure, (inHg)

min_design_mp = 1 ; Min design manifold pressure, (inHg)

critical_altitude = 10000 ; Altitude to which the turbocharger will provide max design manifold pressure (feet)

emergency_boost_type = 0 ; 0=None, 1=Water Injection, 2=Methanol/Water injection, 3=War Emergency Power

emergency_boost_mp_offset = 0 ; Additional manifold pressure supplied by emergency boost

emergency_boost_gain_offset = 0 ; Multiplier on manifold pressure due to emergency boost

fuel_air_auto_mixture = 1 ; Automixture available? 0=FALSE, 1=TRUE

auto_ignition = 0 ; Auto-Ignition available? 0=FALSE, 1=TRUE

max_rpm_mechanical_efficiency_scalar = 1 ; Scalar on maximum RPM mechanical efficiency

idle_rpm_mechanical_efficiency_scalar = 1

max_rpm_friction_scalar = 0.24 ; Scalar on maximum RPM friction

idle_rpm_friction_scalar = 0.24 ; Scalar on idle RPM friction

BestPowerSpecificFuelConsumption = 0.30 ; SFC at Best Power mixture ratio

egt_tuning_constant = 1

egt_peak_temperature = 2100 ; typical peak EGT: 1200 degF + 460

egt_tc = 0.05

cht_tuning_constant = 1

cht_cooling_constant = 0.65

cht_heating_constant = 960 ; max temp degrees Rankine

cht_tc = 0.015

oil_press_tuning_constant = 1

oil_press_max = 12500 ; max oil pressure (psf)

oil_press_tc = 0.8

oil_temp_tuning_constant = 1

oil_temp_cooling_constant = 0.21

oil_temp_heating_constant = 620 ; max oil temperature degrees Rankine

oil_temp_tc = 0.03

radiator_temp_tuning_constant = 1

radiator_temp_cooling_constant = 0.015

radiator_temp_max = 670 ; max radiator temperature degrees Rankine

radiator_temp_tc = 0.02

fuel_press_tuning_constant = 1

fuel_press_max = 2376 ; max fuel pressure (psf)

fuel_press_tc = 2

number_of_magnetos = 2

two_stroke_cycle = 0

supercharged = 1

supercharger_boost_low_end=1.0

supercharger_boost_high_end=2.6

supercharger_power_cost=0.1

radiator_cooling_constant = 0.015

radiator_heating_constant = 670

radiator_tc = 0.02

radiator_tuning_constant = 1

magneto_order_left_right_both = 0

engine_mechanical_efficiency_table = 0:0.5, 1000:0.6, 5000:0.7, 5100:0.7, 5500:0.7, 6000:0.5

engine_friction_table = -600:-65, 600:65, 1000:17, 6000:17

manifold_efficiency_table = 0:0.25, 1:0.97

rpm_to_oil_pressure_table = 0:0, 0.1:0.2, 0.3:0.7, 0.519:0.9, 0.74:1

rpm_to_fuel_pressure_table = 0:0, 1000:0.3, 2800:1, 4000:1

oil_temp_factor_from_rpm = 0:0.5, 500:0.8, 2000:1.0

diesel = 0 ; Is it diesel engine?

induction_air_temp_tc = 0.7 ; Induction Air Temp time constant

carb_heat_delta_temp = 55 ; Delta of temperature when the Carburator Heater is activated (In Rankine)

single_magneto_efficiency = 0.97 ; Efficiency ratio of the engine if it is designed for 2 magnetos but only 1 is currently active.

oil_temp_to_oil_pressure_table = 0:0, 500:-1, 700:-600 ; Pressure differential (in psf) of the oil depending on its temperature (in K).

shaft_torque_tc = 2 ; Gives the speed at which the shaft torque reaches its target value.

recip_stop_arc_degrees = 90 ; Gives the amplitude of the motion made by a reciprocating engine while it is having a spring compression behaviour after it stops producing work.

recip_stop_arc_restitution = 0.8 ; Gives the amount of torque in % restituted when reaching its max arc by a reciprocating engine while it is having a spring compression behaviour after it stops producing work.

recip_stop_arc_max_pct_rpm = 0.04 ; Gives the % max rpm at which a reciprocating engine that stopped producing work will start having a spring compression behaviour.

recip_stop_arc_friction_factor = 2 ; Factor on how much friction affects the reciprocating engine while having a spring compression behaviour.

egt_factor_from_pct_power = 0:0.5, 0.5:0.894, 0.64:0.956, 0.75:0.98, 1:1 ; Gives the EGT temperature factor (to egt_peak_temperature) from the pct of power (HP/maxHP)

egt_delta_from_mixture_ratio = 0.043:-100, 0.05:-89.7, 0.067:-50, 0.07:0, 0.075:-4.9, 0.083:-80, 0.108:-120.5 ; Gives the EGT temperature delta (to current egt value after factor is applied) from the mixture ratio

[PROPELLER]

thrust_scalar = 2 ; Propeller thrust scalar

propeller_type = 1 ; 0=Constant Speed, 1=Fixed Pitch

propeller_diameter = 6 ; Propeller Diameter, (feet)

propeller_blades = 3 ; Number of propeller blades

propeller_moi = 0.5 ; Propeller moment of inertia

use_propeller_rpm = 0;

beta_max = 43 ; Maximum blade pitch angle for constant speed prop, (degrees)

beta_min = 15 ; Minimum blade pitch angle for constant speed prop, (degrees)

min_gov_rpm = 1100 ; Miminum governed RPM

prop_tc = 0.01 ; Prop time-constant

gear_reduction_ratio = 2.43 ; Propeller gear reduction ratio

fixed_pitch_beta = 20 ; Fixed pitch angle of fixed pitch prop, (degrees)

low_speed_theory_limit = 0 ; Speed at which low speed theory becomes blended in (feet/second)

prop_sync_available = 0 ; Prop synchronization available? 0=FALSE, 1=TRUE

prop_deice_available = 0 ; Prop de-icing available? 0=FALSE, 1=TRUE

prop_feathering_available = 0 ; Prop feathering available? 0=FALSE, 1=TRUE

prop_auto_feathering_available = 0 ; Prop auto-feathering available? 0=FALSE, 1=TRUE

min_rpm_for_feather = 0 ; Minimum RPM for prop feathering

beta_feather = 0 ; Feathering pitch angle (degrees)

power_absorbed_cf = 0 ; Coefficient of friction for power absorbed by propeller

defeathering_accumulators_available = 0 ; Defeathering accumulators available? 0=FALSE, 1=TRUE

prop_reverse_available = 0 ; Prop reverse available? 0=FALSE, 1=TRUE

minimum_on_ground_beta = 0 ; Miminum pitch angle on ground, (degrees)

minimum_reverse_beta = 0 ; Minimum pitch angle in reverse, (degrees)

prop_reverse_max_vel = 2 ; Max uvel when reversing

prop_governor_p = 0 ; Propeller governor controller P

prop_governor_i = 0 ; Propeller governor controller I

prop_governor_d = 0 ; Propeller governor controller D

prop_governor_iboundary = 0 ; Propeller governor controller I Boundary

prop_governor_dboundary = 0 ; Propeller governor controller D Boundary

prop_efficiency_table = 0.000000:0.000000:0.200000:0.400000:0.600000:0.800000:1.000000:1.200000:1.400000:1.600000:1.800000:2.000000:2.200000,15.000000:0.150000:0.400000:0.710000:0.860000:0.720000:0.500000:0.340000:0.230000:0.150000:0.110000:0.080000:0.060000,20.000000:0.100000:0.300000:0.620000:0.790000:0.860000:0.800000:0.550000:0.420000:0.300000:0.190000:0.120000:0.090000,25.000000:0.080000:0.230000:0.490000:0.720000:0.820000:0.870000:0.820000:0.600000:0.410000:0.280000:0.180000:0.130000,30.000000:0.070000:0.180000:0.330000:0.500000:0.720000:0.820000:0.870000:0.850000:0.560000:0.420000:0.260000:0.190000,35.000000:0.060000:0.160000:0.260000:0.400000:0.550000:0.720000:0.820000:0.860000:0.870000:0.700000:0.400000:0.300000,40.000000:0.050000:0.120000:0.230000:0.330000:0.450000:0.570000:0.700000:0.810000:0.860000:0.870000:0.850000:0.500000

prop_power_cf = 0.000000:0.000000:0.200000:0.400000:0.600000:0.800000:1.000000:1.200000:1.400000:1.600000:1.800000:2.000000:2.200000:2.400000,15.000000:0.048000:0.043000:0.038000:0.028000:0.009000:-0.057000:-0.188000:-0.338000:-0.522000:-0.705000:-0.915000:-1.092000:-1.220000,20.000000:0.072000:0.065000:0.059000:0.050000:0.037000:0.010000:-0.074000:-0.188000:-0.338000:-0.525000:-0.726000:-0.942000:-1.120000,25.000000:0.098000:0.094000:0.088000:0.080000:0.070000:0.050000:0.020000:-0.040000:-0.134000:-0.272000:-0.468000:-0.717000:-0.933000,30.000000:0.138000:0.132000:0.128000:0.120000:0.110000:0.099000:0.078000:0.040000:-0.017000:-0.110000:-0.248000:-0.468000:-0.741000,35.000000:0.206000:0.198000:0.188000:0.178000:0.163000:0.150000:0.130000:0.105000:0.070000:0.023000:-0.074000:-0.254000:-0.510000,40.000000:0.250000:0.242000:0.233000:0.223000:0.214000:0.204000:0.190000:0.175000:0.150000:0.118000:0.072000:0.019000:-0.059000