I added these patches for KSP Interstellar Extended (should work for all the engines but I didn't test every single one):
//KSP Interstellar Extended
@PART[*]:HAS[@MODULE[ModuleEnginesWarp*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ModuleEnginesWarp*]
{
@maxThrust *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[ModuleEnginesMagneticNozzle*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ModuleEnginesMagneticNozzle*]
{
@maxThrust *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[ModuleEnginesThermalNozzle*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ModuleEnginesThermalNozzle*]
{
@maxThrust *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[ChemicalEngine*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ChemicalEngine*]
{
@maxThrust *= 1.7
@maxThrustUpgraded1 *= 1.7
@maxThrustUpgraded2 *= 1.7
@maxThrustUpgraded3 *= 1.7
@maxThrustUpgraded4 *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[FuelConfiguration*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ModuleEnginesWarp*]
{
@maxThrust *= 1.7
@maxIsp *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[InertialFusionEngine*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[InertialFusionEngine*]
{
@maxThrust *= 1.7
@maxThrustUpgraded1 *= 1.7
@maxThrustUpgraded2 *= 1.7
@maxThrustUpgraded3 *= 1.7
@maxThrustUpgraded4 *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[ZPinchFusionEngine*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ZPinchFusionEngine*]
{
@maxThrust *= 1.7
@maxThrustUpgraded1 *= 1.7
@maxThrustUpgraded2 *= 1.7
@maxThrustUpgraded3 *= 1.7
@maxThrustUpgraded4 *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[FusionEngineController*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[FusionEngineController*]
{
@maxThrust *= 1.7
@maxThrustMk1 *= 1.7
@maxThrustMk2 *= 1.7
@maxThrustMk3 *= 1.7
@maxThrustMk4 *= 1.7
@maxThrustMk5 *= 1.7
@maxThrustMk6 *= 1.7
@maxThrustMk7 *= 1.7
@maxThrustMk8 *= 1.7
@maxThrustMk9 *= 1.7
@thrustIspMk1 *= 1.7
@thrustIspMk2 *= 1.7
@thrustIspMk3 *= 1.7
@thrustIspMk4 *= 1.7
@thrustIspMk5 *= 1.7
@thrustIspMk6 *= 1.7
@thrustIspMk7 *= 1.7
@thrustIspMk8 *= 1.7
@thrustIspMk9 *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[ChemicalEngineController*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[ChemicalEngineController*]
{
@maxThrust *= 1.7
@maxThrustMk1 *= 1.7
@maxThrustMk2 *= 1.7
@maxThrustMk3 *= 1.7
@maxThrustMk4 *= 1.7
@thrustIspMk1 *= 1.7
@thrustIspMk2 *= 1.7
@thrustIspMk3 *= 1.7
@thrustIspMk4 *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}
@PART[*]:HAS[@MODULE[FissionEngineController*]]:NEEDS[RealSolarSystem&!SSRSS]:FINAL
{
@MODULE[FissionEngineController*]
{
@maxThrust *= 1.7
@maxThrustMk1 *= 1.7
@maxThrustMk2 *= 1.7
@maxThrustMk3 *= 1.7
@maxThrustMk4 *= 1.7
@thrustIspMk1 *= 1.7
@thrustIspMk2 *= 1.7
@thrustIspMk3 *= 1.7
@thrustIspMk4 *= 1.7
@atmosphereCurve
{
@key[1, ] *= 1.7
@key,1[1, ] *= 1.7
@key,2[1, ] *= 1.7
}
}
}