The ChemicalEngine(title = #LOC_KSPIE_FNMethaneEngine_title) have been set in wrong Isp number, Hydrazine-Oxidizer become 455s and it might not be that high.

cfg from stock
`
MODULE
{
name = FuelConfiguration

    	fuelConfigurationName = Hydrazine-Oxidizer
	requiredTechLevel = 0
	hasIspThrottling = false
    	fuels = Hydrazine, Oxidizer
	typeMasks = 0, 0
    	ratios = 1.5, 0.1
	maxIsp = 455
	wasteheatMult = 1
    	thrustMult = 2.386
    	powerMult = 1		
	effectname = power_open
	neutronRatio = 0

	ignitionThreshold = 0.1
	exhaustDamageDistanceOffset = 0.19
    
    	atmosphereCurve
    	{
       		key = 0 455
        		key = 1 385
		key = 2 305
		key = 10 0
    	}
	}

`

even high than methane-Lox type.

Change: copy wrong, I paste again

seems like a copy paste mistake.

since stock Oxidizer are HTP, So we might change Hydrazine-Oxidizer maxIsp = 455 to maxIsp = 340 or lower,

I cant find Hydrazine-HTP fuel now yet. But I remember most hypergolic fuel around 320s-340s

ratios = 1.5, 0.1 and atmosphereCurve are also need to change too.

please review

afb79cf

should be good, but I still have little doubts about the mix ratio but let have a shot

I agree the ratio might not be right. Please advice