let me say first that i am sick of trying to use parts that will never work.

so i quit trying and have purchased a brake and sheet metal, tubing to do the job.

the tubing is 1" x 2.5" x .064 aluminum tubes. the sheets of aluminum are .085 thick.



here are the basic parts. they are not welded so their shape is off a little. they are also just mocked up for this picture. the runners are 11" and 14". it will create two distinct torque peaks. one at ~3900 the other at 4700. one thing that shows up in the modulars is a torque loss at 2900-3600 with bigger than stock cams and 11" or shorter runners. i left the cmc plates in the lowers. if i change the pcm to an 05+ pickup truck part, the VCT and cmc will come in handy. they are wired open for now.









so there is the secret thingy.

also the runners are parallel and vertical so they can be cut and shortened or lengthened based on dyno results. the plenum will be exactly as tall as the 4.6 part or 8" tall before adding provisions for a TB on top. i can put the TB opening anywhere i want it. i will probably weld a square bore holley flange to the top. this is a wet manifold, so carbs can be used with an 8 psi fuel pressure regulator and 6an return line. or it can be used for fuel injection. i have 8 injector bungs ready to weld on. carburetor will require a TPS to be fitted to use my current PCM. otherwise an MSD unit will work.

i am going to fuel inject if first. -b

 

the lowers are from a 4.6 3v cmc plate set. it gives me something to weld to in the start, and saves money trying to get cnc deletes.

 

very interesting, just PM'd you

 

I have no idea at all what you just said, but it looks cool and sounds like it'll work pretty good.

 

here are the new adapters. ther cmc's are ported to fit. the runners are 1.5" long and ~30 degreees cut.



i realize building the clean sheet is going to take longer so i am making these for now. all i have left to do is cut the plates for mounting to the plastic, weld them, and bolt them up.

 

so is that a mustang intake? or what? and are you doing this for a 5.4 or 4.6?

 

i think it is a 5.4 3v engine in a mustang

 

IMO i think you just have way too much time on your hands!!!!!lol, but i think it will work! (maybe) Or all else fails you will have triled and errored! good luck keep us updated!

 

keep up the great work! Check your PMS too...

 

the adapters will work fine. it only adds 1.5" but has the advantages of the 4.6 3v intake's rpm band. idle to 7200. it will only change the rpm band a few hundred rpm lower. 4.6 3v's make torque from 3000+ if they still have their cmc plates.

 

so are you suggesting to put the 4.6 intake on the 5.4's with these adapters? or are you saying just put in these adapters to lift the intake making the runners longer? because i really like the placement of the throttle body because of my intake i have

 

yes it will require altering your CAI. a 75mm throttle body flow in the 700cfm range, add to that small cross section runners that are tuned for a 3500 rpm torque peak and you have the stock intake setup.

if you want more power (HP) something has to change. go to www.fordforums.com and look up the BA falcon - BOSS230. they have the exact same motor with a better manifold. 325 bolt oh rwhp is average.

you will never get that in your life with the truck intake. so you sacrifice some tubing for more power. the 4.6 3v has a twin 55mm inlet the flows as much as these motors can use without ported heads.