This is a guide for those of you that want to put an M112 onto your 3.8 or 4.2L V6. This was put on a 99 so some things will be different for 01-04.
Adapter plate(available from mysteed)
90mm Lightning MAF
CAI for a 03/04 Cobra
255 or 310lph fuel pump
IAT sensor and pigtail
NGK TR6 plugs
Idler pulley and mounting hardware
Gauges (wideband AFR, Boost)
01-04 throttle cable
RTV gasket maker
Socket set and ratchet
Tap and die set
Drill and assorted bits
Extra wire, vaccum hoses, wire loomm etc
Assorted nuts, bolts and washers
Supercharger oil - Xl-4 - Ford
IAT sensor - 9C1Z-12A697-B - Ford
IAT pigtail - 3U2Z-14S411-JZA - Ford
TB gasket - F7LZ-9E936-AA - Ford
Plenum gasket - 9L437 - Ford
M112 gasket - 9H486 - Ford
First off removed the hood
Proceed to disconnect the negative cable on the battery. Removed air intake and all connectors, hoses, etc associated with the upper intake.
Now with that completed, you can remove the upper intake.
Put some duct tape over the intake runners or stuff paper towel in them like I did. Remove the 4 bolts that hold the fuel rail down. Clean the dirt/grime around the injectors and firmly pull the fuel rail upwards.
Now remove the clips holding the fuel injectors onto the rail. Once that is complete, you can replace the injectors and reuse the clips.
Put the fuel rail back into its place and push down until all injectors are seated. Tighten the 4 bolts. Now would be a good time to remove and replace your spark plugs.
Now you can test fit the adapter plate for clearance. The only place you will have clearance issues is the front of the fuel rail and the fuel pressure regulator on the drivers side. You need to put the IAT sensor at the front of the adapter plate and the rail gets in the way... Nothing a small prybar and some patience cant fix. Dont forget to put a new gasket under the adapter plate.
I used a 5/8" tap for the IAT sensor but it was too small. The way I got the threads in is a little hairy(random pipe reducer).
With all that buttoned down, you can start on the alignment of the M112. You will need to pry the coolant crossover/bleeder line to clear the snout of the M112. Just do the same thing with the fuel rail, pry it little by little.
I didnt have my new belt yet so just use to old one and wrap it around the snout and 2 idlers. You can also see the idler I added. Just a spacer on the back side and a washer on the front, then I found a bolt long enough to work.
**** FOR THOSE OF YOU THAT HAVE TO DRILL YOUR PLATE *****
You can do it 1 of 2 ways, the dumb way or the smart way.
I did it the dumb way. I got the belt alignment completed then grabbed a sharpie marker and marked all the holes on the adapter plate. Drilled the holes and found out that only the front 2 holes lined up.... *anger face* Well I put the bolts in the front 2 holes and tightened them, then proceeded to drill each hole again... VERY CAREFULLY since the fuel rail is right below where your drilling.
The smart way would be to drill the front 2 holes, tighten the bolts and then drill the rest.
Now you can grab the M112 and apply a bead of RTV along the bottom of case. *I ran a bead of RTV and the metal gasket for the M112, but you can get away with just RTV* Place the M112 on the adapter and snug up the nuts/bolts. DONT TIGHTEN FULLY for at least an hour, let the RTV set up.