[Cdutch513]

Today I hooked up the N54 BMS OCC on my N52 that is supercharged by ESS. Pretty simple.

Time: 30-45 min

Items Needed:
N54 BMS Oil Catch Can kit
Long screw driver
4 ft of 3/4 tubing
2 3/4 hose clamps
Needle nose
Allen keys for catch can mounting
Something to cut tubing

Step 1: disconnect battery
Step 2: take off all beauty covers( cabin filter, two black covers over DME and right side, and the huge black plastic cover.)
Step 3: break off clip on PCV valve and disconnect line at supercharger.
Step 4: pull out tubing( just wiggle it out)
Step 5: install catch can on support beam on right side.
Step 6: route straight tubing provided with kit from PCV to catch can. Use 3/4" hose clamp on PCV. I had to use needle nose to stretch out the tubing a little to make it slip on easier.
Step 7: route purchased 3/4 tubing from catch can to supercharger and clamp on with 3/4" hose clamp . ( I used a big screw driver through the intake slots and pushed it the way I needed it to go as I pushed it down from the back of the intake)
Step 8: verify tight connections and reinstall all covers.

If you have any questions, ask!

[WatashiEd]

Originally Posted by Cdutch513

Today I hooked up the N54 BMS OCC on my N52 that is supercharged by ESS. Pretty simple.

Time: 30-45 min

Items Needed:
N54 BMS Oil Catch Can kit
Long screw driver
4 ft of 3/4 tubing
2 3/4 hose clamps
Needle nose
Allen keys for catch can mounting
Something to cut tubing

Step 1: disconnect battery
Step 2: take off all beauty covers( cabin filter, two black covers over DME and right side, and the huge black plastic cover.)
Step 3: break off clip on PCV valve and disconnect line at supercharger.
Step 4: pull out tubing( just wiggle it out)
Step 5: install catch can on support beam on right side.
Step 6: route straight tubing provided with kit from PCV to catch can. Use 3/4" hose clamp on PCV. I had to use needle nose to stretch out the tubing a little to make it slip on easier.
Step 7: route purchased 3/4 tubing from catch can to supercharger and clamp on with 3/4" hose clamp . ( I used a big screw driver through the intake slots and pushed it the way I needed it to go as I pushed it down from the back of the intake)
Step 8: verify tight connections and reinstall all covers.

If you have any questions, ask!

Good work OP!!

Just curious to see have you seen any condensed oil/fuel/water mixture in the catch can since installed?

Reason being I have seen a lot of comments around saying that n52 is not direct injected and there is PCV system/oil separator in place so there is no real benefit of adding the OCC?

But personally I am actually keen to add one in my system too cause I am planning to go FI by end of the year too and the spending is actually small if there is real benefit to protect the system

[Cdutch513]

Originally Posted by WatashiEd

Good work OP!!

Just curious to see have you seen any condensed oil/fuel/water mixture in the catch can since installed?

Reason being I have seen a lot of comments around saying that n52 is not direct injected and there is PCV system/oil separator in place so there is no real benefit of adding the OCC?

But personally I am actually keen to add one in my system too cause I am planning to go FI by end of the year too and the spending is actually small if there is real benefit to protect the system

I have to empty it every 5000 miles due to the gunk in there. The reason I installed it was because I had oil dripping down my intake and coating my air filter in engine oil.

[Soravia]

I pulled my N52k single stage intake off and there was oil sitting inside. Fresh oil because my last oil change was only 3k miles or so. 3 stage I bought was also coated in oil. When you rev it high, extra pressure will send air back into intake to burn again (DO NOT VENT!) And it will come with oil mist. Catch can with drain will work well. Build up will depend on how often you rev it high.

I'm going to plan for a secondary can down below to fill from the drain of the first can. The way I see it, if you take corner hard or brake hard, all that oil will pour out into the intake.

[bluewater328]

Originally Posted by Soravia

I pulled my N52k single stage intake off and there was oil sitting inside. Fresh oil because my last oil change was only 3k miles or so. 3 stage I bought was also coated in oil. When you rev it high, extra pressure will send air back into intake to burn again (DO NOT VENT!) And it will come with oil mist. Catch can with drain will work well. Build up will depend on how often you rev it high.

I'm going to plan for a secondary can down below to fill from the drain of the first can. The way I see it, if you take corner hard or brake hard, all that oil will pour out into the intake.

I wouldn't be terribly concerned. Have you seen an N54 intake manifold? There's a reason they have to walnut blast. Even with oil, N52 intake manifold is relatively clean.

[Soravia]

Originally Posted by bluewater328

I wouldn't be terribly concerned. Have you seen an N54 intake manifold? There's a reason they have to walnut blast. Even with oil, N52 intake manifold is relatively clean.

Oil gets into the DISA valves and kills the motor control.

[slowcar]

how much hp/tq is this putting down?