diff --git a/lua/metrostroi/systems/sys_81_714_new_pneumatic.lua b/lua/metrostroi/systems/sys_81_714_new_pneumatic.lua
index 76c7146..18e2b1f 100644
--- a/lua/metrostroi/systems/sys_81_714_new_pneumatic.lua
+++ b/lua/metrostroi/systems/sys_81_714_new_pneumatic.lua
@@ -480,7 +480,7 @@ function TRAIN_SYSTEM:Think(dT)
         end
 
         if not self.TLDisconnect then
-            self.TLDisconnectPressure = math.max(0,self.TLDisconnectPressure - math.abs(self.ReservoirPressure_dPdT)*dT)
+            self.TLDisconnectPressure = math.max(0,self.TLDisconnectPressure - math.abs(self.ReservoirPressure_dPdT)*0.074)
         end
         self.ReservoirPressure_dPdT = self.ReservoirPressure_dPdT + self.BrakeLinePressure_dPdT*0.2
         Train:SetPackedRatio("ReservoirPressure_dPdT",self.ReservoirPressure_dPdT/wagc*2)
diff --git a/lua/metrostroi/systems/sys_81_717_new_pneumatic.lua b/lua/metrostroi/systems/sys_81_717_new_pneumatic.lua
index b6ce491..9213416 100644
--- a/lua/metrostroi/systems/sys_81_717_new_pneumatic.lua
+++ b/lua/metrostroi/systems/sys_81_717_new_pneumatic.lua
@@ -526,7 +526,7 @@ function TRAIN_SYSTEM:Think(dT)
         end
 
         if not self.TLDisconnect then
-            self.TLDisconnectPressure = math.max(0,self.TLDisconnectPressure - math.abs(self.ReservoirPressure_dPdT)*dT)
+            self.TLDisconnectPressure = math.max(0,self.TLDisconnectPressure - math.abs(self.ReservoirPressure_dPdT)*0.074)
         end
         self.ReservoirPressure_dPdT = self.ReservoirPressure_dPdT + self.BrakeLinePressure_dPdT*0.2
         Train:SetPackedRatio("ReservoirPressure_dPdT",self.ReservoirPressure_dPdT/wagc*2)