background image

50

th

 Anniversary 

 Ford Mustang Cobra Jet 

Official Owners Manual 

 

 

 

 

Techline 1-800-367-3788

 

Page 34 

 

 

9.2 Fueling  

Your 50

th

 Anniversary Cobra Jet is equipped with a 4.25 gallon (approx.) fuel tank 

mounted in the trunk. To fill the tank, open the trunk to access the tank. Lift up the latch 
of the fuel tank cap and turn counterclockwise until it hits the stop, then lift up to remove 
the cap. Set the cap aside. 

 

 

Use a funnel to fill the tank, being careful not to spill fuel on any painted surfaces. Ford 
Performance recommends VP C16 fuel only. Do not overfill. Maximum fill level is an inch 
below the filler flange. Overfilling may cause fuel to spill out via the vent tube. 
 
 
 
 

 

 

ATTENTION! 

Attempting to run any fuel other than VP C16 may cause severe 

detonation and damage to your engine. If you choose to run a 

different fuel, ensure that the Stoichiometric air/fuel ratio in ProCal3 

is changed accordingly. See Section 3.2 for more information.

 

 

Summary of Contents for Mustang Cobra Jet 50th Anniversary

Page 1: ...50 50 50 50th th th th Anniversary Anniversary Anniversary Anniversary Official Owner s Manual ...

Page 2: ...ne Engine Engine 18 18 18 18 6 1 Maintenance 19 6 2 Intercooler Drain Flush and Fill 20 6 3 Engine Coolant Drain and Fill 22 7 7 7 7 Transmission Transmission Transmission Transmission 24 24 24 24 7 1 Operation 24 8 8 8 8 Chassis Chassis Chassis Chassis 25 25 25 25 8 1 Brakes 25 8 1 1 Break in Procedure 25 8 1 2 Proportioning Valve 25 8 1 3 Line Lock 26 8 2 Dampers 27 8 3 Anti Squat 29 8 4 Seat Be...

Page 3: ...et to run poorly and lead to engine damage See sections on Engine and Maintenance for full details Ensuring the vehicle is legal for race competition including SFI certification is the responsibility of the racer Familiarize yourself with the vehicle and the rulebook for your sanctioning body Be diligent with the care and maintenance of your vehicle ATTENTION This is a Racing Vehicle This vehicle ...

Page 4: ... a water glycol mix in both cooling systems ATTENTION After start up prior to any runs take the time to properly break in your brake system by bedding your brake pads Failure to do so may result in loss of control of your vehicle potentially causing serious damage as well as injury or death Make nine total stops three from 30 mph then three from 50 mph and finally three from 75 mph Allow the brake...

Page 5: ...ting it is recommended that you turn on the intercooler second You should hear the intercooler pump running when it is switched on If not stop and investigate before proceeding Serious damage may occur to the engine if the intercooler is not functioning 5 Turn on the fuel pump switch 6 Your 50th Anniversary Cobra Jet is equipped with a manually shifted reverse valve body transmission Make certain ...

Page 6: ...3788 Page 4 5 Apply pressure to the brake pedal and push the start engine button which is located on the top left edge of the center control panel ATTENTION For your safety it is necessary to neutralize the rear suspension prior to any runs See section 9 4 1 for the correct procedure ...

Page 7: ... to install the device drivers 2 Start the ProCal3 software Wait for the lights on the Vehicle Interface dongle to blink rapidly signifying that the software has communication with the dongle 3 On the Program tab open the included calibration file into ProCal3 4 Plug the Vehicle Interface dongle into your Cobra Jet s OBD connector 5 Power on the master power switch on your Cobra Jet and turn on th...

Page 8: ...aling of your vehicle speed data by changing the values of the axle ratio and tire size in the PCM Do this by typing in the correct values of each in the Calibrate Scalars tab The changes will upload to the PCM after you select Write Data ATTENTION Ensure that the battery voltage is at least 11 5V before writing to the PCM Ensure that the write process is complete before unplugging the Vehicle Int...

Page 9: ...ype Note that this is a fuel property It is NOT the air fuel ratio at wide open throttle The default value is 14 82 WOT Fuel Adder This will adjust the fuel table at wide open throttle This is a lambda value positive values will result in leaner air fuel ratios and negative values will result in richer air fuel ratios The default value is 0 lambda Spark Adder This will adjust the timing table in t...

Page 10: ...mit Set the maximum throttle plate angle The throttle body is wide open at 82 degrees The default setting is 40 degrees Engine RPM Limit Set the engine overall speed limit The default value is 8500 RPM 2 Step Tab 2 Step Enable 2 Step RPM Enable or disable the Launch Control Two step system and change the set point The default 2 step value is 2500 RPM See Section 4 for instructions on the Launch co...

Page 11: ...Read Data currently stored in the PCM and choose the desired table Launch Assist X in the Launch Select row If modifying a table select Write Data to store changes in the PCM To select tables via RacePak follow the process outlined below 1 While depressing the brake pedal and hold the L C RPM toggle switch down for 3 seconds 2 The tachometer will sweep to 6000 RPM and hold while in Launch Assist s...

Page 12: ...bles are designed to prevent wheelspin in varying traction conditions Launch aggressiveness increases from Table 1 least aggressive Table 4 most aggressive Note that the Launch Assist feature is separate from Launch Control which will hold the engine RPM at a certain speed at the starting line See Section 4 for more information ...

Page 13: ...l may also be used to read any diagnostic trouble codes DTCs on your Cobra Jet Go to the Diagnose tab and use the buttons to read or clear any codes Click on the Key On Engine Off KOEO and Key On Engine Running KOER self tests to run these in order to find all codes Note that the engine needs to be on for the KOER test NOTE Launch assist is not a smart traction control device It is a closed loop s...

Page 14: ...g Cobra Jet Official Owners Manual Techline 1 800 367 3788 Page 12 3 4 ProCal3 Downloader Tab The ProCal3 tool may also be used to download calibration updates to the PCM if available Instructions will be provided with any updates ...

Page 15: ...Launch control indicator 2 Setting of the desired launch engine speed 3 Activating the launch control at the starting line done by depressing the brake pedal Note that the Launch Control is a separate feature from Launch Assist which can reduce power at the launch in low traction situations See Section 3 2 1 for more information 4 1 Setup Launch Control RPM Indicator The current RPM set point will...

Page 16: ...nt 2 Release the brake pedal and L C switch 3 Use the L C switch to increase or decrease until the desired setting is reached 4 Hold the L C Set switch up for approximately 3 seconds to save the new setting to the PCM Note that the launch control set point may also be changed via the ProCal3 software 4 2 Operation The launch control system activates when the brake pedal is depressed No buttons nee...

Page 17: ... passenger side above the glove box 5 2 Vehicle PDB Fuse Box The Vehicle Power Distribution Block PDB shown in the figure below contains all the fuses and relays for every electrical component on the vehicle The PDB is located in the passenger side front of the engine bay Refer to schematics in the included wiring diagram for fuse relay locations within the PDB ...

Page 18: ...witch is the master start run control It must be on before any vehicle run operation will be allowed 3 Fuel Pump Switch Engage the fuel pump switch to allow the engine to start The high flow pump will produce a noticeable tone from the rear of the vehicle and is part of normal operation 4 Intercooler Pump Switch Engage the intercooler pump prior to starting the vehicle to cool the intake air You m...

Page 19: ...indow down slightly if the door is opened with the window in the fully raised position After extended periods of time with the master switch in the off position the window may need to be operated through one complete up down cycle to recalibrate the window position controller for full up down position After one complete cycle the power windows will function normally until the master power is turne...

Page 20: ...ne that requires diligent care and maintenance to ensure optimum performance over time 1 Engine oil dipstick 2 Engine oil fill cap 3 Engine coolant reservoir 4 Vehicle PCM 5 Vehicle PDB 6 Intercooler reservoir 7 Brake master cylinder fluid reservoir 8 Oil catch can 9 Brake bias adjuster 10 Fuel pressure regulator test port 11 Transmission dipstick fill tube 3 3 3 3 6 6 6 6 4 4 4 4 5 5 5 5 8 8 8 8 ...

Page 21: ...age after every two events to monitor engine condition 5 Full engine teardown check and rebuild is recommended after 50 runs 6 FPP highly recommends the replacement of the following parts Pistons and rings Main and rod bearings Valves valve springs valve seals spring retainers and lash caps Supercharger belt In addition the following parts should be checked for excess wear and or cracks Block Cran...

Page 22: ... questions 6 2 Intercooler Drain Flush and Fill Your 50th Anniversary Cobra Jet is equipped with an intercooling charge air cooling system that consists of three main components a heat exchanger within intake manifold an electric pump and a water tank This system cools the intake charge by circulating fluid from the water tank to a heat exchanger installed downstream of the supercharger The interc...

Page 23: ...ump out all the coolant as shown below Re fill with straight water Cycle the intercooler pump for 2 3 minutes Flush the system by repeating the steps above While cycling the pump for the second time check for any leaks in the system Ensure the intercooler water level is at an inch above the inlet port See figure below Close the intercooler water tank lid securely ...

Page 24: ...tcock on the driver s side of the radiator as shown below to drain coolant into a vessel ATTENTION Any time the vehicle will be stored in a climate under freezing 32 F the system needs to be drained and appropriate glycol water mix filled Inlet port ATTENTION For maximum performance and longevity of your Cobra Jet engine the intercooler water tank should be filled with ice before every run See Sec...

Page 25: ...rvoir Run engine for 2 3 minutes Drain and refill the system with distilled water again to flush the system by repeating the above steps After running the engine again for 2 3 minutes check for leaks and ensure that the coolant reservoir is filled to the MAX line ATTENTION Any time the vehicle will be stored in a climate under freezing 32 F the system needs to be drained and appropriate glycol wat...

Page 26: ... to 130 in lb Reinstall and torque drain plug to 115 in lb Fill transmission with 4 qts of fluid through the dipstick hole Check the fluid level and keep filling until the fluid reaches the fill line on the dipstick The only oil recommended for your transmission is XT 10 QLVC Motorcraft Mercon LV The recommended filter is SPX A34010B The filter and pan gasket are available from Joel s on Joy For a...

Page 27: ...your vehicle potentially causing serious damage as well as injury or death Make nine total stops three from 30 mph then three from 50 mph and finally three from 75 mph Allow the brakes to cool slightly between each of the three runs without applying pressure to the brake pedal After the last stop allow the brakes to completely cool before making an initial run in your vehicle 8 1 2 Proportioning V...

Page 28: ...er to hold the front brakes while leaving the rear brakes disengaged This enables the driver to perform a burnout To use apply pressure to the brake pedal then hold the red button on the shifter This will engage the line lock and maintain the front brake pressure that the pedal was applied to Releasing the LL button will release the brake pressure ...

Page 29: ...specifically for the Cobra Jet There are adjustment knobs for both compression and rebound for each damper The front dampers are adjusted using a 3 8 wrench and the rears with a 4mm hex key Do not force adjusters beyond initial contact with stop damage to the seats will occur Front Rebound Adjustment Clockwise Less Damping Front Compression Adjustment Clockwise More Damping ...

Page 30: ...50th Anniversary Ford Mustang Cobra Jet Official Owners Manual Techline 1 800 367 3788 Page 28 Rear Rebound Adjustment Clockwise More Damping Rear Compression Adjustment Clockwise More Damping ...

Page 31: ...tions Adjustment between these two positions will cause the anti squat geometry to change See Section 9 4 for the guide on choosing an anti squat value Any adjustment to the rear suspension must be followed by a re neutralization of suspension See section 9 4 1 for the correct setup procedure ATTENTION If you choose to adjust the upper control arm position you will need to follow the procedures to...

Page 32: ...s and regulations ATTENTION No passenger seat belt is provided The passenger seat is provided for compliance to NHRA Stock class rules and is not intended for use 1 2 3 4 To adjust seat belt Adjust seat position Adjust anti sub strap 1 to place the camlock 4 at waist height when the belt is snug adjustment is under seat Clip lap belts 2 into buckle 4 Adjust lap belts 2 Clip shoulder belts 3 into b...

Page 33: ... 1 Remove the tires from the vehicle 2 Deflate the tires to roughly 5 psi and store them on their side in a cool dark dry environment 3 Do not use chemicals on the tires and clean them with a mild detergent water mixture 4 Independent of tire wear M T recommends removing tires from service after 4 years of storage For additional information visit http www mickeythompsontires com tech bulletins Alw...

Page 34: ...50th Anniversary Ford Mustang Cobra Jet Official Owners Manual Techline 1 800 367 3788 Page 32 8 6 Vehicle Tie downs This vehicle is equipped with both front and rear tie down locations ...

Page 35: ... 9 1 Fuel Sample Port The fuel sample port and fuel pressure regulator are mounted to the driver s side shock tower Taking a sample will require a length of 5 32 fuel compatible rubber hose to reach whatever vessel being used to hold the sample After installing the sample hose with the vehicle master power switch and ignition switch on turn on the fuel pump Turn the red valve to the ON position an...

Page 36: ...p to remove the cap Set the cap aside Use a funnel to fill the tank being careful not to spill fuel on any painted surfaces Ford Performance recommends VP C16 fuel only Do not overfill Maximum fill level is an inch below the filler flange Overfilling may cause fuel to spill out via the vent tube ATTENTION Attempting to run any fuel other than VP C16 may cause severe detonation and damage to your e...

Page 37: ...rge by circulating fluid from the water tank to a heat exchanger installed downstream of the supercharger Prior to every run Ensure that the level of intercooler water is at its recommended fill level one inch above the inlet port see figure below o If the level is higher use a pump to drain water from the system until the correct level is reached Do not allow the water level in the tank to drop b...

Page 38: ...ures are allowed to rise Do not allow the water level in the tank to drop below the inlet port while draining Periodically check intercooler reservoir overflow canister located on the passenger side behind the glove box panel see figure below and empty as necessary ATTENTION The intercooling system relies on ice being added to the water tank to properly cool the intake charge Dangerous intake air ...

Page 39: ...arying track conditions 9 4 1 Neutralizing Rear Suspension Neutralizing the rear suspension involves adjusting the lengths of the rear passenger side upper control arm and the anti roll bar drop link The passenger side control arm will be made slightly shorter than the neutralized position The passenger side anti roll bar drop link will be made slightly longer than the neutralized position ATTENTI...

Page 40: ... s seat and any ballast in place as intended to be run 1 Park vehicle on an elevated level surface such as the drive on hoist shown below 2 Set tire pressures Front Tire Pressure 40 psi Rear Tire Pressure 20 24 psi even left to right 3 Settle the vehicle by lifting up and then pressing down by hand on the front of the vehicle then lift up and press down on the rear ...

Page 41: ...op link 1 Note that the upper rod end has a left handed thread Remove the lower bolt and set the hardware aside 2 5 Loosen the jam nuts on both sides of the passenger side rear upper control arm Note that the rear rod end has a left handed thread After loosening the jam nuts rotate the bottom of each rod end towards the outboard side of the vehicle as shown below 1 2 ...

Page 42: ... is felt then turn an additional 5 degrees 11 Tighten the drop link jam nuts ensuring that the link does not rotate while tightening 9 4 2 Baseline Setup For optimum performance of your Cobra Jet a full chassis setup should be performed It is recommended that this setup be done at an experienced race shop with proper equipment The procedure for a full chassis setup is detailed here Tools required ...

Page 43: ...al spec is 0 75 degrees 8 Using SmartStrings or equivalent alignment tool set front toe angles Nominal spec is 1 8 1 4 inches total toe in 9 Verify that the axle is positioned correctly in the vehicle by measuring from the frame rail to the upper control arm mounting bracket on both sides The bracket should be 1 16 closer to the frame rail on the driver s side than the passenger side Loosen the ja...

Page 44: ...fference between the driveshaft and the differential flange angles as shown Use a digital inclinometer to find the angles and add subtract them to find the pinion angle The pinion angle shown is 3 20 counter clockwise 0 70 counter clockwise 2 50 degrees To increase the angle loosen the jam nuts and shorten the control arm to decrease the angle lengthen the arm See figures below for measuring the a...

Page 45: ...50th Anniversary Ford Mustang Cobra Jet Official Owners Manual Techline 1 800 367 3788 Page 43 Flush with differential flange surface ...

Page 46: ... and verify pinion angle 12 Reinstall the passenger side upper control arm and torque to spec 13 Neutralize the rear suspension by following steps 5 through 11 in Section 9 4 1 14 Set front and rear damper compression and rebound settings Nominal damper settings are shown in the table below See the included damper curve file for all the damper force curves ...

Page 47: ...ks from full stiff Rear Rebound 20 clicks from full stiff 16 clicks from full stiff Rear Compression 20 clicks from full stiff 20 clicks from full stiff Front Tire Pressure 40 psi Rear Tire Pressure 22 psi Front Rocker Pinch Weld 4 inches Rear Rocker Pinch Weld 6 1 8 1 8 inches Front Camber 75 25 degrees Front Toe 1 8 inch toe in rim lip per side Recommended Rear Upper Control Arm Position Lower H...

Page 48: ...ord Performance offers a specially developed wheelie bar for the Cobra Jet The wheelie bar 200lb in spring and the lower bar may be adjusted to raise or lower the wheelie bar Wheelie bar height is measured from the ground to the center of the wheelie bar wheel NOTE It is important to run nonzero pinon angle to avoid premature wear Also avoid excessive pinion angles WARNING Ford Performance recomme...

Page 49: ... to 5 5 inches to the center of the wheelie bar wheel by loosening the jam nuts and turning the lower bar to either raise or lower the bar Once the height is achieved snug the jam nuts on both ends of the lower bar The lower and upper bars have two attachment locations The upper hole location is used for racing the lower location raises the bar for loading and trailering the vehicle In this positi...

Page 50: ...50th Anniversary Ford Mustang Cobra Jet Official Owners Manual Techline 1 800 367 3788 Page 48 Racing location Travel location ...

Page 51: ...beled RacePak 1 and RacePak 2 These buttons allow you to cycle through the screens as well as set time date start stop data logging etc The detailed IQ3 user guide is available online at the following link https documents holley com techlibrary_iq3_dsp_manual_v5 pdf This guide in the above link goes into detail of the RacePak button functions how to log data set warning lights and much more The Da...

Page 52: ...s pcvengros nhra com NMRA NMCA Tech Lonnie Grim nmrarules promediapub com Cobra Jet Parts Suppliers Watson Racing www watsonracing com Joel s on Joy Transmissions joelsonjoy yahoo com Whipple Supercharger tech whipplesuperchargers com Mickey Thompson Tires tech mickeythompsontires com RC Components Wheels tech rccomponents com Strange Engineering Axle Brakes Shocks jb strangeengineering net Dynote...

Page 53: ... CONSULT YOUR RULEBOOK TO SEE IF WATER IS REQUIRED Accessory Drive Belt Supercharger NAPA Gates Green K100665RPM Alternator NAPA 25 060427 Transmission Fluid XT 10 QLVC Motorcraft Mercon LV Filter SPX A34010B Capacity Oil change 4 6qt Dry fill 10 11qt Differential Oil Lucas High Performance Heavy Duty SAE 85W 140 Gear Oil Capacity 3 qt Gear ratios 3 89 1 Brake Fluid Motorcraft High Performance PM ...

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