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FM/DM threads Everything about FM/DM in CoD

 
 
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Old 09-12-2011, 07:03 PM
Das Attorney Das Attorney is offline
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Join Date: May 2011
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Hi See,

I posted the following up in the ATAG thread: This is taken from the game data using kegetys.dll. These are pre_beta so not sure if it's changed since. Basically, the MkI and Ia have 0.002 lbs/sq in extra boost (ie nothing)

You need to look at the NominalPressure entry for normal max manifold pressure, and the WEPPressure entry for boost cut out.


Quote:
The Mark I and Ia are modelled up to 6.25 lbs/sq in. Boost is 6.252 lbs/sq in. Yes, that's an increase of 0.002 lbs/sq in when boost is engaged.

Check the MerlinIII entry in the engine.fmd file:

Supercharger SingleStageSupercharger Efficiency 0.5 LimiterInput Manifold NominalPressure +6.25 lbsqin ContinuousPressure +4.5 lbsqin WEPPressure +6.252 lbsqin NominalAltitude 16250 feet
Valvetrain Generic SlowRunningEfficiency 0.9
FuelPump Pushrod NominalPressure 9 lbsqin at 500 RPM
Carburettor RollsRoyceFloat DiffuserBore 6.1 cm OrificeSlowFast 1.0 sec Heater AutoEngineOil Altimetric DensityRatio Dresser BoostDriven Input +4.5 lbsqin to +6.25 lbsqin Output 1.0 to 1.01

The Spit IIa has +9 lbs/sq in boost.

From the MerlinXII entry:

Supercharger SingleStageSupercharger Efficiency 0.5 LimiterInput Manifold NominalPressure +6.25 lbsqin ContinuousPressure +4.5 lbsqin WEPPressure +9.0 lbsqin NominalAltitude 13500 feet
Valvetrain Generic SlowRunningEfficiency 0.9
FuelPump Pushrod NominalPressure 9 lbsqin at 500 RPM
Carburettor RollsRoyceFloat DiffuserBore 6.1 cm OrificeSlowFast 1.0 sec Heater AutoEngineOil Altimetric DensityRatio Dresser BoostDriven Input +4.5 lbsqin to +6.25 lbsqin Output 1.0 to 1.01
Cheers

EDIT: Don't forget that you need to jiggle the throttle a little after engaging the boost otherwise it won't 'take'.

Last edited by Das Attorney; 09-12-2011 at 07:13 PM.
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