Forge MBC installation
 

Alright everyone i know there has been some confusion in the world of hooking up a Forge MBC with bad drawings and vague information so here is my stab at how to hook-up a Forge MBC.

Tools you will need :
-- Drill and 3/16 sheet metal drill bit
-- 1/4 Drive ratchet
-- 6 in extension for sockets
-- 10 mm socket (Shallow or Deep well )
-- 12 mm socket ( Shallow or Deep well )
-- Needle noce pliers
-- Regular size phiolps head screw driver
-- Small thin flat head screw Driver
-- Dikes ( Mechanics slang for diagonal cutters )
-- Water, spit, or (yes i am serious) KY lube
-- Zip ties ( Size optional ) or small band clamps
-- Rubber Vacuum caps (small ones) , Autozone will know what your talking about
-- Vacuum tubing (it might be called windshield wiper tube also) i suggest 4mm bore

1) First thing you need to do is take out the intake ( this includes the box where the filter rests as well, this will require the 10mm socket, 6in extention, and ratchet. Be carefull because when you take off the to gold bolts your MAF sensor harness is connected to the box which can be removed with a pair of needle nose pliers ( squeeze the top of the clip ) as well as the plug being connected to the MAF sensor. Remove the plug, harness, two bolts, and the scrivets (the little plastic screws that hold the snorkle of the intake on). Be mindful to keep all the hardware togeather so you don't lose it. Refer to picture 1.

2) Next you will have to take the Upper intercooler pipe out, this can be done with the ratchet, 6in extention and 10mm socket. You will find that on the underneath side of the Upper intercooler pipe there is a hose that hooks up to the Blow off valve. It is easiest to remove the hose that attaches to the BOV than it is to remove from the intercooloer valve just because of room. Use the small flat head screw driver to get underneath the rubber hoses to take them away from the piping itself **CAUTION: Be very carefull when using the srew driver , you don't wat to puncture the hoses. **. Again keep all hardware togeather as not to lose it. Refer to picture 2.

3) What was attached to the airbox and underneath the Upper intercooler pipe and is also hooked up to the BOV is the Turbine outlet duct. Take this duct out using care. There are two lines attached to the duct with a zip tie(these are the lines you will be removing in the end), cut the zip tie and let the tubes below the outlet duct hang. Another line attached to the outlet duct goes to the head, remove the portion hooked to the duct and tuck it aside for now. There is also another smaller line hooked up to the bottom of the outlet duct remove it from the duct. When all is removed use a zip tie and rubber cap to cap this port off. Refer to picture 3.

4) Now you should be able to see the wastegate and the Turbine outlet nipple. These are the two lines you will be removing to install your new tubing going from to your MBC. If you find it really difficult to remove the lines from the Wastegate and or Turbine nipple just cut them off ( these hoses will not be going back in the car ) to expose the full port. Refer to picture 4.

5) Following the Wastegate and Turbine nipple tube back you will notice they hook-up to the same place underneath where your airbox was, this is your wastegate solenoid, remove these two tubes. It is easiest just to take a short run of tubing and run the ports to eachother and zip tie them on. Taking care of that will take care of the last portion of the capping off of ports. Now all stock tubing should be removed and we are almost done. Refer to picture 5.

Now all there is left to do is run your lines and zip tie then firmly to all ports. The new tube that runs to the Turbine outlet nipple is the line that will go to the bottom of the MBC, while the wastegate line will go to the side port of the MBC. Generally get an idea of where you want to install the MBC for routing purposes and when you are done measure with some slack available before cutting the lines to hook up to your Unos.

NOTES: Above you will see that i mentioned using KY lube. Because KY lube does not brake down rubber (such as condoms and cars tubing) it is safe to use a small dab to make lines and tubing slide in a little easier. Mike@Forge uses 3mm bore which i personally would find impossible to conect which is why i personally went with 4mm bore. With the 4mm bore and some KY and some fighting the tubing connected to the Unos perfectly.

Also, secure all tubing so there is no sagging in the lines. Chaffing would be horrible for the tubing.

Lastly, wait till the end to install your Upper intercooler pipe to give you room when you go to reconnect your Turbine outlet pipe to the airbox ( don't forget to hook-up that MAF sensor plug ) it can be a real pain if you don't. I hope this helps everyone, it worked for me. Good luck and race safe.

-- Aux. --

good post..you should also add how to remove the radiator fan..cause they wont be able to get down there unless they get it off

Way incorrect . I am a 6'1'' 240 lbs man and i could get the job done without removing the radiator fan. Plus you take too much chance on damaging the blades on the radiator. Might get a few scratches and scars , but chics dig those {thumbup} .

i just installed my Perrin MBC and to get to that little pipe sticking out the turbine and the actuator..... all hell broke loose... i took out upper IC pipe, Intake box and pipe, removed radiator fan....
i had to remove the upper radiator hose to get it out because the fan cover is a huge piece of metal with some mounting hardware sticking out which gets caught on the lower IC pipe which i couldn't get off unless i jacked the car up and removed the undertray... it was december 15 with snow and ice on the ground and i have no garage, i'm doing it on the sidestreet in front of my house in 25 degree weather soooo.... i'm basically tearing everything apart as quick as my frozen hands can work.
pop off the radiator hose (yea you lose some juice but it's ok) yank out the fan and wow. it's so much easier.

yes i received battle scars from my baby and yes i bent some of her radiator blades, but the power i gained.... all worth it.
btw: every one of my zip ties broke in this frigid weather... cheap plastic. i got one zip tie to hold the MBC in place with another hose.

Just put a peice of cardboard over the fan so the blades don't even touch you {thumbup}

sometimes its easier not to remove things and get a couple more scratches.But thats just my theory, to each ther own. As an aircraft mechanic for the last eight years i have figured out that the less you take out the less you put in the less you disturb things the less that can go wrong. But hey whatever makes it work for you . As far as the cheap-o zip ties are concerned , i personally used metal "ban clamps" so they don't slip or break in the weather. Thats what we use on aircraft.I am just glad i could help. {thumbup}

question... what to do with factory solenoid lines?

the one that's under the stockbox and is split with a T.
lines used to go to turbine outlet and actuator
Mine's just haning around open ended, split with no caps.
Should i remove the whole plug and everything?

Nice.


Discuss Thread HERE