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DIY Custom OCC with AD Engineering Fittings
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02-13-2015, 04:59 PM | #1 |
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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: LINK HERE! DIY FOR STAINLESS STEEL LINES: http://www.e90post.com/forums/showthread.php?t=875343 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)
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-13-2015, 05:46 PM | #2 |
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Haven't even read this yet but as always, props. Once tuning is done this is next on the list of things to do - right now i'm VTA and it's both
1. Ineffective as a means of pulling vacuum on the crankcase 2. Gross. Oil everywhere, nasty smell.
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E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP
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02-13-2015, 05:50 PM | #3 |
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Partially my fault...I told you to do that. I never got a real bad smell though until I hit higher boost
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-13-2015, 05:56 PM | #4 | |
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Neil |
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02-13-2015, 05:58 PM | #5 | |
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VTA was totally my choice. It' just a smelly one How much boost have you cranked it up to? I'm stuck at 17 pounds until I get fuel squared away.
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E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP
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02-13-2015, 05:59 PM | #6 | |
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I would *think* it'd be fairly simple to weld in a venturi?
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E88 N54 Alpinweiss/Coral Red/Motiv HTA 3586r Tial .82AR/Other stuff...652WHP
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02-13-2015, 06:02 PM | #7 |
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20 as of now, to damn cold!!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-13-2015, 06:03 PM | #8 |
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you could easily do that.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-13-2015, 06:04 PM | #9 |
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I appreciate that man!
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-13-2015, 06:05 PM | #10 |
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I would highly suggest you relocate the coolant tank on motiv kit, get rid of heatshield. It is actually a lot cooler temps when you do.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-14-2015, 07:59 PM | #11 | |
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02-14-2015, 10:13 PM | #12 | |
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FWIW, I added DEI foil to the outside of the heatshield, which on my car shields the air filter and the coolant reservoir. Thanks. Neil |
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02-14-2015, 11:19 PM | #13 | |
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I honestly wish I took more readings but was just trying to get DIY done. It is substancial though.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-15-2015, 09:42 AM | #14 | |
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Is the heatshield not tight enough and trapping heat around the air filter or is heat being transferred from the coolant reservoir? Which is more likely to be beneficial: moving the reservoir or removing the heat shield? Neil |
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02-15-2015, 09:47 AM | #15 | |
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-15-2015, 09:48 AM | #16 | ||
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02-15-2015, 09:50 AM | #17 | ||
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With the Motiv filter setup, I might just have a little trick up my sleeve. RobC I may just pm it to you since I know you'll get to it a hell of a lot faster than I will. |
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02-15-2015, 02:13 PM | #18 | |
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Also, what hoses will be needed for use with the 335d reservoir (or can the existing hoses be adapted)? EDIT: Also looks like a custom charge pipe will be needed to clear the reservoir. Since I like my ER/TiAL set-up,this reduces my interest in relocating the reservoir! Neil Last edited by MDORPHN; 02-15-2015 at 05:07 PM.. |
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02-15-2015, 06:13 PM | #19 | ||
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02-15-2015, 11:12 PM | #20 |
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I use stock cp abd my stock coolant reservoir. Made my own brackets. Had to make slight hole in fever liner but that was it. Used 3ft of 5/8" heater hose, keep hose low with no upward travel. I mounted mine to AC line abd works perfectly.
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JB4 G5, Stage 3 LPFP, Stage 2 MOTIV PI, VM 6466 ST, Custom OCC W/ SS lines, ER FMIC, ER CP W/HKS BOV, M3 control arms, M3 guide rods, M3 upper links, M3 front & rear sway-bars, HPA rear toe arms, Wavetrac LSD, HPF Gen 2, DEFIV kit, KW clubsport, Delrin solid SF bushings, stoptech rotors, Rogue Tranny Mounts, 1M bumper, M3 CF hood, M3 fenders, M3 OEM sideskirts, Mtech rear bumper, CSL trunk, MORR VS8.2 rims 245/295
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02-16-2015, 07:07 AM | #21 | |
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02-16-2015, 01:56 PM | #22 |
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Watching this closely, thanks Rob. Now I'm hoping to do plumbing and tap ports this week then dyno thurs. Have had the 335d tank for a while just no time for conversion yet, but thats still my plan too with slightly modified ER pipe.
Last edited by skyguy; 02-16-2015 at 02:23 PM.. |
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