DIY Custom OCC with AD Engineering Fittings

Andy Divers from AD Engineering made two fittings (vent hose flapper delete & PCV delete). The correct way to do this is to tap and seal the ports in the head to prevent boost from entering valve cover. His fittings are some of the best quality I've seen and the service has been impeccable.


People are going to ask why I didn't just buy a custom OCC - simple answer is I like to design my own stuff.


IMPORTANT NOTE: I am NOT responsible for any damage to you, your car or anything else.


TIPS:


**Do NOT allow any shavings to enter the motor - it's easiest to have a secondary person on hand with a vacuum.
**Use thread cutting oil for all tapping.
**Use oil on all threads of AN fittings to keep from marring threads.


FITTINGS NEEDED FOR DIY:


-12AN X 1/2" NPT Female straight fitting
-12AN X 1/2" NPT male flared straight fitting
-12AN X 1/2" NPT 90 degree double swivel fitting
-12AN T fitting (rubber top only)
-12AN cap (rubber top only)
-12AN nut (rubber top only)
-12AN X 1/2" NPT Elbow (alternate filter only)
-10AN X 1/2" NPT 45 degree fitting
-10AN X 1/2" NPT straight male flared fitting
-10AN X 1/2" NPT straight female fitting
-8AN X 1/2" NPT 90 degree fitting
-8AN X 1/2" NPT 45 degree fitting
-8AN X 3/8" NPT straight male flared fitting
-8AN X 3/8" NPT straight male flared fitting
-8AN cap


NOTE: In some pics you may see fittings not previously mentioned already installed. This was due to timing of arrival of fittings.


DIY FOR REMOVING VALVE COVER:


http://www.boostaddict.com/showthrea...ver-gasket-DIY


DIY FOR STAINLESS STEEL LINES:


http://boostaddict.com/showthread.ph...Steel-line-DIY


STEP 1:


Tapping OCC top



















STEP 2:


Tapping OCC bottom (all bottom fittings are 3/8" NPT)






















STEP 3:


This is for the rubber top filter that came with the MOTIV kit (NOTE: Step 4 is an alternate metal-topped filter that I personally prefer).













STEP 4:


Alternate metal-topped filter













STEP 5:


Valve cover tapping (see DIY on Valve Cover removal link above if necessary).


I can NOT stress enough to not allow ANY shavings to get into the motor - be as clean as possible!!




























STEP 6:










STEP 7:



















STEP 8:


You'll have to take your own measurements for line fitment as each person may want to put the lines in a different location.



















STEP 9:







STEP 10:


All finished! Here are the completed project pics! (Please ignore my filthy engine bay - it's usually spotless. LOL)