here is an useful code

},
"bolide_turbo_stage3": {
"information":{
"authors":"BeamNG",
"name":"Stage 3 Variable Boost Twin Turbocharger",
"value":19600,
},
"slotType" : "bolide_intake",
"variables": [
["name", "type", "unit", "category", "default", "min", "max", "title", "description"],
["$wastegateStart", "range", "psi", "Engine", 21, 12, 30, "Turbo Boost Pressure", "Pressure at which the turbocharger wastegate begins to open", {"stepDis":0.5}],
],
"slots": [
["type", "default", "description"],
["bolide_exhaust_turbo","bolide_exhaust_turbo_b", "Exhaust"],
],
"flexbodies": [
["mesh", "[group]:", "nonFlexMaterials"],
["bolide_intake_turbo", ["bolide_engine", "bolide_engine_intake", "bolide_headers"]],
["bolide_intercooler_R", ["bolide_intercooler_R", "bolide_subframe_R"]],
["bolide_intercooler_L", ["bolide_intercooler_L", "bolide_subframe_R"]],
],
"turbocharger": {
"bovSoundFileName":"event:>Vehicle>Forced_Induction>Turbo_07>turbo_flt_race",
"hissLoopEvent":"event:>Vehicle>Forced_Induction>Turbo_07>turbo_hiss_race",
"whineLoopEvent":"event:>Vehicle>Forced_Induction>Turbo_07>turbo_spin_race",
"turboSizeCoef": 1.0,
"bovSoundVolumeCoef":0.55,
"hissVolumePerPSI": 0.043,
"whineVolumePer10kRPM": 0.010,
"whinePitchPer10kRPM": 0.042,
"wastegateStart":"$wastegateStart",
"wastegateLimit":"$=$wastegateStart+1",
"maxExhaustPower": 65000,
"backPressureCoef": 0.00008,
"frictionCoef": 100,
"inertia":7,
"pressureRatePSI": 75,
"damageThresholdTemperature": 900
"pressurePSI":[
//turbineRPM, pressure(PSI)
[0, -3.5],
[30000, 1.5],
[60000, 4],
[90000, 11],
[150000, 18],
[200000, 25],
[250000, 33],
[300000, 40],
],
"engineDef":[
//engineRPM, efficiency, exhaustFactor
[0, 0.0, 0.0],
[650, 0.23, 0.05],
[1400, 0.33, 0.10],
[2000, 0.53, 0.25],
[3000, 0.83, 0.55],
[4000, 0.88, 0.85],
[5000, 0.95, 0.95],
[6000, 0.97, 1.00],
[7000, 0.97, 1.00],
[8000, 0.93, 0.95],
[8500, 0.83, 0.90],
[9000, 0.65, 0.80],
[10000, 0.55, 0.70],
],
},
"soundConfig": {
"$+maxLoadMix": 0.15,
"$+minLoadMix": 0.1,
"$+intakeMuffling":-0.6,
"$+mainGain":2,
"$+eqLowGain": 7,
},
"soundConfigExhaust": {
"$+maxLoadMix": 0.2,
"$+minLoadMix": 0.15,
"$+mainGain": 1.5,
"$+offLoadGain": 0.15,
},
"mainEngine":{
//turbocharger name
"turbocharger":"turbocharger",
"$*instantAfterFireCoef": 2,
"$*sustainedAfterFireCoef": 2,
"$*sustainedAfterFireVolumeCoef": 1.3,

//damage deformGroups
"deformGroups_turbo":["mainEngine_turbo_R","mainEngine_turbo_L","mainEngine_intercooler_R","mainEngine_intercooler_L"]
},
"nodes": [
["id", "posX", "posY", "posZ"],
{"selfCollision":false},
{"collision":false},
//intake
{"frictionCoef":0.5},
{"nodeMaterial":"|NM_METAL"},
{"nodeWeight":3.5},
{"group":["bolide_engine","bolide_engine_intake"]},
["intck1r",-0.112,0.556,0.741],
["intck1l",0.112,0.556,0.741],
["intck2r",-0.112,1.033,0.741],
["intck2l",0.112,1.033,0.741],
{"engineGroup":""},

//turbos
{"nodeWeight":2.0},
["trb1r",-0.336,0.73,0.67, {"group":"bolide_turbo_R"}],
["trb1l",0.336,0.73,0.67, {"group":"bolide_turbo_L"}],
["trb2r",-0.336,0.88,0.67, {"group":"bolide_turbo_R", "afterFireAudioCoef":1.0, "afterFireVisualCoef":1.0, "afterFireVolumeCoef":1.0, "afterFireMufflingCoef":1.0, "exhaustAudioMufflingCoef":1.0, "exhaustAudioGainChange":0}],
["trb2l",0.336,0.88,0.67, {"group":"bolide_turbo_L", "afterFireAudioCoef":1.0, "afterFireVisualCoef":1.0, "afterFireVolumeCoef":1.0, "afterFireMufflingCoef":1.0, "exhaustAudioMufflingCoef":1.0, "exhaustAudioGainChange":0}],

//intercoolers
{"nodeWeight":3.0},
["ic1r",-0.809,0.762,0.571, {"group":"bolide_intercooler_R"}],
["ic1l",0.809,0.762,0.571, {"group":"bolide_intercooler_L"}],
{"group":""},
],
"beams": [
["id1:", "id2:"],
{"beamPrecompression":1, "beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},
//intake
{"deformLimitExpansion":1.2},
{"beamSpring":3500940,"beamDamp":235},
{"beamDeform":105000,"beamStrength":"FLT_MAX"},
["intck2l", "intck2r"],
["intck2r", "intck1r"],
["intck1r", "intck1l"],
["intck1l", "intck2l"],
["intck2l", "intck1r"],
["intck2r", "intck1l"],
["intck2r", "e4r"],
["e4r", "intck1r"],
["intck1r", "e3r"],
["intck2r", "e3r"],
["intck2l", "e4l"],
["e4l", "intck1l"],
["intck1l", "e3l"],
["e3l", "intck2l"],
["intck2l", "e2l"],
["e2l", "intck1l"],
["intck1l", "e1l"],
["e1l", "intck2l"],
["intck2r", "e2r"],
["e2r", "intck1r"],
["intck1r", "e1r"],
["e1r", "intck2r"],

//turbos
{"beamSpring":3000000,"beamDamp":130},
{"beamDeform":90000,"beamStrength":"FLT_MAX"},
{"deformGroup":"mainEngine_turbo_R", "deformationTriggerRatio":0.001}
["trb1r", "e3l"],
["trb1r", "e4l"],
["trb1r", "e3r"],
["trb1r", "e4r"],
["trb1r", "e1l"],
["trb1r", "e2l"],
["trb1r", "e1r", {"isExhaust":"mainEngine"}],
["trb1r", "e2r"],
["trb2r", "e3l"],
["trb2r", "e4l"],
["trb2r", "e3r"],
["trb2r", "e4r"],
["trb2r", "e1l"],
["trb2r", "e2l"],
["trb2r", "e1r"],
["trb2r", "e2r"],
["trb2r", "trb1r", {"isExhaust":"mainEngine"}],
{"deformGroup":"mainEngine_turbo_L", "deformationTriggerRatio":0.001}
["trb1l", "e3l"],
["trb1l", "e4l"],
["trb1l", "e3r"],
["trb1l", "e4r"],
["trb1l", "e1l", {"isExhaust":"mainEngine"}],
["trb1l", "e2l"],
["trb1l", "e1r"],
["trb1l", "e2r"],
["trb2l", "e3l"],
["trb2l", "e4l"],
["trb2l", "e3r"],
["trb2l", "e4r"],
["trb2l", "e1l"],
["trb2l", "e2l"],
["trb2l", "e1r"],
["trb2l", "e2r"],
["trb2l", "trb1l", {"isExhaust":"mainEngine"}],
{"deformGroup":""}

//intercoolers
{"beamSpring":2000000,"beamDamp":130},
{"beamDeform":15000,"beamStrength":"FLT_MAX"},
{"deformGroup":"mainEngine_intercooler_R", "deformationTriggerRatio":0.02}
["ic1r", "rx9r"],
["ic1r", "rx7rr"],
["ic1r", "rx8r"],
["ic1r", "rx7r"],
["ic1r", "rx1r"],
["ic1r", "rx3r"],
{"deformGroup":"mainEngine_intercooler_L", "deformationTriggerRatio":0.02}

//charge pipes
{"beamSpring":50000,"beamDamp":130},
{"beamDeform":10000,"beamStrength":20000},
{"beamPrecompression":1, "beamType":"|NORMAL", "beamLongBound":1.0, "beamShortBound":1.0},

you dont have to thank me ;)