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S-Model Supercharger &
70mm TB 'How-To'

Note: Before beginning it is recommended that you
read the SC
OD Pulley install 'How-To' for pulley removal and the Spark plug wire
installation 'How-To' articles. You will need the Supercharger Reseal Kit
E9SZ-19577-A which is available from your local Ford parts department or
any Gasket Maker (requires 6-12 hours set-up time). You will need about
4 hours to complete the removal and installation of the supercharger, throttle
body, and inlet plenum. S-Model supercharger and 70mm BBK Throttle Body
can be purchased through MN12
Performance.

1. Designate a clean area to set the parts down after removal from the
   car.
   
2. Disconnect the connector to the Mass AirFlow (MAF) sensor
   and loosen the clamp at the Throttle Body. Remove the air tube assembly
   from the Throttle Body (TB) and pull the air intake system
   out. Disconnect the #1,#2,#3 plug wires from the distributor.
   
3. Disconnect all (accelerator, speed sensor, & AOD) linkages from
   the TB bracket. Next, remove the 2 bolts that attach the TB bracket to
   the inlet plenum assembly.
   
4. Disconnect fuel charging wiring connectors at the throttle position
   sensor (TPS) and idle air control (IAC) from the
   TB.
   
5. Remove the supercharger belt & pulley (see
   SC OD pulley installation article)
   
6. Remove all vacuum hoses that connect to the inlet plenum. (Hint:
   Mark the location of all vacuum hoses that are connected to the inlet plenum
   before removal). Loosen supercharger bypass hose clamps
   that connect the inlet plenum to the outlet plenum.
   
7. Remove the supercharger outlet plenum collar nut with the spanner nut
   wrench and remove the 2 nuts that connect the upper intercooler tube assembly
   to the intercooler.

Hint: If you never cleaned the Intercooler out or
flushed the radiator this is the best time. Use mineral spirits or a can
of brake fluid to clean the Intercooler out and radiator flush to clean
the radiator out. This is also the best time to mount a intercooler fan
behind the intercooler.

1. If your SC is equipped with a Exhaust Gas Recirculation (EGR)
   valve you need to remove the two bolts that connect the EGR valve to the
   inlet plenum along with the bolt that connects the EGR transducer. You
   will have to remove the passenger side cowl vent screens to access the
   EGR. You will need a 3/8" flex head ratchet to reach the 2 bolts that
   hold the EGR to the inlet plenum. If your SC is equipped with the coolant
   lines that run through the TB you will need to block the lines off.

1. Finally, remove the three bolts that hold the supercharger down to
   the intake. Remove the supercharger, intake plenum, & throttle body
   together from the car. Clean as much oil and dirt from the engine as possible
   using brake cleaner or engine cleaner and compressed air. With the supercharger
   out check all vacuum hoses for signs of cracking and check valve covers
   for oil leaks. With the stock supercharger out of the car check all vacuum
   fittings on the inlet plenum and swap any fittings over to the S-Model
   that are different. Remove the 4 bolts that hold the SC top on the supercharger
   and remove the SC top. Clean and inspect sealing surfaces. Remove the 4
   retaining nuts from the stock TB and separate the TB from the inlet plenum.
   With the TB off remove the IAC and TP sensors. (Note:
   Be careful the screws are very hard to get off so use a bench and a good
   phillips head screw driver to remove the screws. Install both IAC and TP
   sensors on the new BBK TB. Tighten the IAC bolts to 6-9 lb-ft and the TPS
   phillip screws to 6-9 lb-ft. Check all nuts and bolts that connect the
   intake plenum to the supercharger and torque to proper specifications.
   )
   
2. Check the TP voltage after you install the TPS on the TB. To check
   voltage connect the TPS connector to the TPS and using a paper clip insert
   one end into the the back of the harnesses CENTER wire in the 3 wire harness.
   Turn the ignition to ON with the engine off and check the voltage using
   a volt meter. At idle the voltage should be between (see chart).
   To adjust the voltage turn the idle stop screw down until correct voltage
   range is achieved. If correct voltage cannot be set then remove the TPS
   and using a drill bit or chain saw file round the brass holes that the
   screws go through to hold the TPS down to the TB. This will provide you
   adjustibility when setting the base voltage.
   
   

   Passenger Car Engine	Engine	1993 Service Part	Voltage at Idle
   Thunderbird/Cougar	V6 3.8L EFI	F2SZ-B	.66-1.22
   Thunderbird	V6 3.8L SC	F2SZ-C	.70-1.31
   Thunderbird/Cougar	V8 (4.6L) EFI	F2SZ-A	.65-1.26
   Thunderbird/Cougar	V8 (5.0L) HO	F2SZ-C	.70-1.31

Installation is the reverse of removal.

Torque Specifications

Description	Lb-Ft
Supercharger Retaining Bolts8mm	15-22
Supercharger Retaining Bolts12mm	52-70
Supercharger Outlet Adapter Bolts/Stud	15-22
Throttle Body Assembly Retaining Nuts	15-22
Intake Elbow Bolts	20-28
Charge Air Cooler Tube Retaining Nuts	15-22
Charge Air Cooler Outlet Tube to Bracket Bolt	30-40
Supercharger Adapter Collar (Nut)	148
Charge Air Cooler Outlet Tube Bracket (to Cylinder Block) Stud	(*)
Charge Air Cooler Outlet Tube Bracket (to Cylinder Block) Bolt	52-70
Charge Air Cooler Outlet Tube Bracket (to Cylinder Block) Nuts	15-22
Charge Air Cooler Retaining (to Radiator Air Boot) Screw and Washer Assys	3-5
Generator and Power Steering Pump Bracket Nut	30-40
Throttle Linkage Bracket Bolt	10-15
Bypass Hose Clamps	20-30 (Lb-In)
Sensor Assembly	6-9
Power Pump Bracket Brace to Water Pump	15-22
Plenum Bolts	16-24
Charge Air Cooler Outlet Tube Stud	17-88 (Lb-In)

(*) - Fully seat then tighten to (17-88 lb-in)

MN12 Performance [email protected] 703-968-6513