2008 Police Interceptor Modifier Guide - MotorCraftService.com

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2-2 ElectricalSection 2: ElectricalElectrical Systems ManagementCare must be given in deciding what equipment should be installed into a police vehicle given thepower demands of the equipment and the power available from the vehicle. A power load strategyshould be developed to minimize the risk of running out of power. Examine the proposedequipment for vehicle installation. Add up the current requirements. If the current requirementsexceed what the vehicle can reasonably be expected to be able to provide, the battery will begindischarging to provide the power to the equipment that the generator is unable to provide. Aftersome period of time, the vehicle will shut off as the battery voltage decreases to a level thatcannot sustain vehicle operation.There are alternatives that can be considered to minimize system electrical overload. Considerthe current requirements of equipment before it is purchased and installed. Modern light bars andradios use a fraction of the current than units made as recently as 1996. As the light bar is themost power intensive unit installed on most police vehicles, considerable attention should be givento its current requirements. Changes in officer habits while in the field can make a difference aswell. When a vehicle is sitting at an accident scene and no one is in the car, the air conditionercan be turned off until the officer is ready to get back into the vehicle. The air conditioner isamong the largest current users of non-police equipment. As such, it can impact available powerfor other uses as well.Generator OutputOn all 2008 Police Interceptors, the generator is controlled by the PCM.The Police Interceptor generator is different from that used on the standard Crown Victoria. ThePolice Interceptor has a 200-amp generator. This results in significantly greater current output,especially at idle, where police vehicles need it most.• Generator amp output.— Maximum output for the base Crown Victoria is 135 amps— Maximum output for the Police Interceptor is 200 amps• Generator drive ratio, determined by generator pulley size.— Base Crown Victoria 2.72:1— Police Interceptor 2.95:1• Faster idle speed.— Base Crown Victoria 640 rpm in PARK, 544 rpm in DRIVE— Police Interceptor 800 rpm in PARK, 600 rpm in DRIVENote: In order to calculate engine rpm from the graph below, divide the generator speed by 2.95(or 3 as an approximate). Generator speed/3.0 = engine rpm.2008 Police Interceptor Modifier Guide, 06/2007
Electrical 2-3Section 2: ElectricalCharging MarginsGenerator output varies with engine speed and ambient temperature as it is illustrated in theGenerator Output Section. The worst case for police vehicles is when the vehicle is idling for longperiods of time on a very hot day. Lower engine speeds while idling, coupled with high underhoodtemperatures that may approach 93°C (200°F), combine to minimize power output from thegenerator. At the same time, electrical demand on the vehicle is often at its highest because theair conditioner loads are added to the usual electrical loads experienced in emergency situations.Vehicle Component Electrical LoadsVehicle component electrical loads are shown in the table below. Not all features are powered allthe time, so actual vehicle loads on the power supply system will vary.2008 Police Interceptor Modifier Guide, 06/2007
Page 1 and 2: TABLEOFCONTENTSINTRODUCTIONSECTIONS
Page 3 and 4: SECTION 1General InformationContent
Page 5: 1-2 General InformationSection 1: G
Page 10 and 11: General Information 1-7Section 1: G
Page 12 and 13: General Information 1-9Section 1: G
Page 14 and 15: General Information 1-11Section 1:
Page 30 and 31: SECTION 2ElectricalContents (Contin
Page 34 and 35: 2-4 ElectricalSection 2: Electrical
Page 40 and 41: 2-10 ElectricalSection 2: Electrica
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2-52 ElectricalSection 2: Electrica
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SECTION 3Installation Consideration
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Installation Considerations 3-1Sect
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SECTION 4Trunk Mounting Considerati
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4-2 Trunk Mounting ConsiderationsSe
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4-10 Trunk Mounting ConsiderationsS
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SECTION 5Reference InformationConte
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5-2 Reference InformationSection 5:
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5-10 Reference InformationSection 5
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METRICSBOLT STRENGTH IDENTIFICATION
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Customer Information WorksheetCUSTO
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