Engine Tuning

"engine":{
//engine performance
"idleRPM":
"shiftDownRPM":
"shiftUpRPM":
"maxRPM":
"inertia":
"friction":
"brakingCoefRPS":
"burnEfficiency":
"torqueReactionNodes:":
"particulates":

"turbocharger": {
"wastegateStart"
"wastegateLimit"
"maxExhaustPower"
"backPressureCoef"
"pressureRatePSI"
"frictionCoef"
"inertia"
"damageThresholdTemperature":
"pressurePSI":
//turbineRPM, pressure(PSI)

"engineDef":[
//engineRPM, efficiency, exhaustFactor

Can someone do a quick explanation on each of these as if I knew nothing about Turbos or Motors? I just need help getting a better grip on these. Thanks!

 

I can do the engine and some of the turbo but that's all

"engine":{
//engine performance
"idleRPM": - speed engine idles at, for the average engine it is between about 700 and 1000RPM
"shiftDownRPM": - RPM that engine will shift down a gear at, only works in are mode or Automatic with an Auto transmission
"shiftUpRPM": - same as above but for shifting up a gear
"maxRPM": - the rev limiter where the engine will not rev anymore, when you hit it you will notice it wont rev any higher
"inertia": - the weight of the internals of the engine. for example the semi will have a much higher inertia than the engine in the pigeon as it is much bigger
"friction": - the friction of the engine the lower the friction the faster it revs.
"brakingCoefRPS": - not totally sure but I think this applies such as when you downshift in a truck so the engine slows the truck down instead of burning up the brakes
"burnEfficiency": - again I'm not completely sure but I think the higher this is the more easily it will make power, you should probably ask somebody else about this
"torqueReactionNodes:": - Absolutely no idea
"particulates": - again, absolutely no idea

"turbocharger": {
"wastegateStart" the PSI at which the wastegate starts to open
"wastegateLimit" the PSI at which the wastegate is fully open
"maxExhaustPower" the higher this number is the more exhaust gas goes through the turbine meaning the turbo spools quicker
"backPressureCoef" Not sure
"pressureRatePSI" Not sure
"frictionCoef" same with engine friction, the lower this number is the easier the turbine can spool, lower numbers is basically like having a ball bearing turbo instead of a cheaper journal bearing
"inertia" the weight of the turbo internals, a lower inertia couple with low friction should make an extremely efficient turbocharger
"damageThresholdTemperature": no idea
"pressurePSI": not sure
//turbineRPM, pressure(PSI)

I highly recommend watching some videos to get a better understanding of a turbo such as engineering explained. he makes it easy to understand how they work

 

burnEfficiency, how much fuel it uses. Nothing to do with power which is purely calculated from the torque curve (with amendments for turbo and super)
torque reaction nodes, the nodes in the engine Jbeam the engine produces torque around (to make it flex in the bay properly in accordance with newtons 3rd law).
Particulates, smokiness from exhaust

 

Hey i have made this for myself but it might help you guys.

BEAMNG DRIVE MOD HELP LINKS


CONTENT CREATION https://wiki.beamng.com/Content_Creation
VEHICLE CREATION https://wiki.beamng.com/Introduction_to_Vehicle_Creation#Engine_and_Transmission
COMBUSTION ENGINE https://wiki.beamng.com/CombustionEngine
DRIVESHAFT https://www.beamng.com/threads/stop-driveshaft-from-breaking.50407/
ENGINE THERMAL https://www.beamng.com/threads/engine-thermo-setting-and-radiator-damage-setting.26221/
VEHICLE PERFORMANCE HELP https://www.beamng.com/threads/tutorial-vehicle-performance-and-components-modification-simple.4261/
PORTING ENGINES https://www.beamng.com/threads/tutorial-porting-engines-and-other-parts-inbetween-vehicles.28730/
TURBOS https://wiki.beamng.com/Turbocharger
SUPERCHARGERS https://wiki.beamng.com/Supercharger
APP PROGRAMMING https://wiki.beamng.com/BeamNGrogramming
LUA https://wiki.beamng.com/Lua:Reference
BEAMNG DRIVE WIKI https://wiki.beamng.com/Portal
SOUND https://wiki.beamng.com/Sound
SOUND2 https://www.beamng.com/threads/how-...vehicle-made-with-the-old-sound-system.16252/
ENGINE THERMAL SIM https://wiki.beamng.com/Engine_Thermal_Simulation
CVT TRANNYS https://www.beamng.com/threads/cvt-transmission.4608/
ENGINE TUNING https://www.beamng.com/threads/engine-tuning.28824/
MODING THE ENGINES https://www.beamng.com/threads/tutorial-how-to-mod-engine-part-1.39221/


If you got any questions ask.
I will try to respond as quick as possible.