[Gavin@MMW]

Originally Posted by mike-y

so the 3 stage manifold had only one vent hose connection, instead of 2 like the stock manifold?

if that is the case, it means you got an E60 5 series manifold instead of a 3 series manifold. I had both of them side by side and they were exactly the same except for the number of vent hose connections.

Or are you saying you re-used the oil separator (softball thing under the manifold)? the 328i has this built into the valve cover so you don't use it at all with the new intake manifold, you should just connect the 328i vent hose directly to the manifold, and bypass it all together.

Sorry guys, I didnt get back to this thread fast enough.


- Client got a 530i manifold, not a true 330 manifold.

[MaximusJ]

Originally Posted by Gavin@MMW

- Client got a 530i manifold, not a true 330 manifold.

So the money he saved in parts he spent on fitting and labour? Brand new parts is still the best option in my book!

Originally Posted by benzo23

Damn under 500 is a steal

He's saying that labor was under 500; So I understand that its 500 + the parts? 500 in labour is a steal indeed; but not in a good way! This shouldnt take a mechanic more then 3 hours. If he charges more either he is incompetent, dont know what he's doing or obviously lying.

I dont know why so much people pay to do this. Take your time and its very DIY-able. If I did it, everybody could. I'm not a mechanical guy at all but if you can distinguish nuts and bolts, you should be ok. But you have to get the good parts in the first place for sure.

[Dark_Knight_335]

Dyno or it didn't happen.

[Gunchoz]

Originally Posted by Gavin@MMW

Sorry guys, I didnt get back to this thread fast enough.


- Client got a 530i manifold, not a true 330 manifold.

So if we get the true 330 manifold, it'll fit a 328 without needing any extra custom parts, am I right?

[DESI4life10]

Originally Posted by mike-y

so the 3 stage manifold had only one vent hose connection, instead of 2 like the stock manifold?

if that is the case, it means you got an E60 5 series manifold instead of a 3 series manifold. I had both of them side by side and they were exactly the same except for the number of vent hose connections.

Or are you saying you re-used the oil separator (softball thing under the manifold)? the 328i has this built into the valve cover so you don't use it at all with the new intake manifold, you should just connect the 328i vent hose directly to the manifold, and bypass it all together.

I don't know about this. I got my 3stage manifold from a 530 car and it has the 2 vent hose connections like my stock 328 manifold does. It also came with the oil seperator, but I took that off.

He might have gotten an early e60 production car which isn't the same manifold as the 330 one. I believe you have the get a manifold after 2006 I believe.

I have attached some pics of the 530 (02/2006 Production). The manifold has been cleaned up now and I removed the oil seperator.

[MaximusJ]

Originally Posted by Gunchoz

So if we get the true 330 manifold, it'll fit a 328 without needing any extra custom parts, am I right?

Correct.

[mike-y]

Desi, supposedly, the 530i manifold I got also came out of a '06 car (at least that's what they told me). nearly exactly the same except there was one vent port (centered on the bottom part) instead of two. Luckily, it came with everything, including the oil separator, so it could still be used on a 325i without issue, since the 325i also has an oil separator.

Another member here successfully put that 530i manifold on his 325i.

[peepayy_91]

Originally Posted by SDeFranco1

Dyno or it didn't happen.

[Fortyb]

Subscribed.

[OwnAge]

Originally Posted by DESI4life10

It is the same.

Gonna get this installed on my car soon (328xi)

very interested to see the difference...

[Route 16]

How's the gas mileage now? better or worse?

[jvsxn]

Originally Posted by Shazmonkee

So I'm interested in doing this for my 28i, but I don't know what parts I need. Do you have that information?

http://www.e90post.com/forums/showthread.php?t=381371.

[bdl328xit]

I just had the manifold done a week or two ago. Found a 3-stage at Hi-way Auto Parts in Texas from a low-mileage wrecked '09 Z4 3.0 SI for $350. It came with all the adjusters and hoses. Ended up returning the $90 vent hose to the dealer. Installation was just over $400 at Gunbarrel Import Motors. The tech, JW, did a great job.

There are definitely some jumpy spots in the power band, and I hope the AA tune or possibly Autologic p-tune can remedy/improve this.

BMW should have included the 3-stage manifold from the factory. The stock power output of the N52 in the E91 is not very pleasing at 5000+ ft altitude.

[spacemonkey1112]

whoa whoa whoa i don't get this true 330i manifold talk....

[gunnerxq]

What is the vent hose for? I only had one and it was too short so I capped the vent hole off. What is it supposed to do? 15k miles and no problems though.

[Johnny D]

Originally Posted by gunnerxq

What is the vent hose for? I only had one and it was too short so I capped the vent hole off. What is it supposed to do? 15k miles and no problems though.

The Oil separator unit is a vent system. It takes the built up pressure in the crank case and the head of the engine and routes it back through the intake system and into the combustion chamber to reuse. The separator unit itself is used to remove any oil that is sucked into the system. If you do not have the system installed correctly you can begin burning oil, be routing oil into the engines intake, have rough idle, and cause excess pressure in the engine causing gaskets to crack or break.

50 years ago these systems were vented into the air, but with todays environmental standards they are routed back into the engine, like a PCV valve or similar to a smog pump.

I highly recommend you get the correct hose and get it installed pretty quickly.

[spacemonkey1112]

Originally Posted by jntar

The Oil separator unit is a vent system. It takes the built up pressure in the crank case and the head of the engine and routes it back through the intake system and into the combustion chamber to reuse. The separator unit itself is used to remove any oil that is sucked into the system. If you do not have the system installed correctly you can begin burning oil, be routing oil into the engines intake, have rough idle, and cause excess pressure in the engine causing gaskets to crack or break.

50 years ago these systems were vented into the air, but with todays environmental standards they are routed back into the engine, like a PCV valve or similar to a smog pump.

I highly recommend you get the correct hose and get it installed pretty quickly.

I have a 325i as well and the manifold i got was off a 06 530i i believe. can you please take a picture of this hose and post it here? I'd like to double check that mine is indeed installed correctly (though I do believe it is since LTBMW did the install for me and did not mention any complications such as these; just to double check)

thanks!

[gunnerxq]

Originally Posted by jntar

The Oil separator unit is a vent system. It takes the built up pressure in the crank case and the head of the engine and routes it back through the intake system and into the combustion chamber to reuse. The separator unit itself is used to remove any oil that is sucked into the system. If you do not have the system installed correctly you can begin burning oil, be routing oil into the engines intake, have rough idle, and cause excess pressure in the engine causing gaskets to crack or break.

50 years ago these systems were vented into the air, but with todays environmental standards they are routed back into the engine, like a PCV valve or similar to a smog pump.

I highly recommend you get the correct hose and get it installed pretty quickly.

Thanks for the information. Can you show me where its supposed to go and the part number?

[gunnerxq]

I'm confused now because I remember I had to make one hose longer which I'm assuming is the vent hose. There was a hole where there was nothing left that would go there. So I capped it off, its the farthest one if you look at it from the front of the car. Maybe it was a hose that split which I was to put on instead?

[Johnny D]

Gunner and Spacemonkey, this thread is about the 328i, so if you hear them talking about different vent hoses it is because they are different between the 325i and 328i.

For our cars, it will be hooked up like this...





Both #3 and #4 have connectors that connect into the back of the manifold. There is also a third connector from the oil separator that connects to this area on the manifold.

01 OIL SEPARATOR 11617531423
02 Vent hose 11617559530 Connects to the back side of the manifold. Some models there is a split and two connection point. You can go to the dealership and find the dual connection version.
03 Connecting line 11157522931 Connects to the top rear of valve cover/head. Used to vent the valve train area.
04 Return pipe 11157567801 Connects to the crank case
05 Covering cap 11617547229
06 Bracket 11617532979
07 Tubing support 611313793518
08 Screw 11617535849
09 Extraction line 11157537701 connects from top of oil separator to throttle body intake.
10 Bracket 11157545772

[DJ2009]

subscribed, i am going to do this down the road.

[ray_futbol]

i finished installing mine on saturday, the vent hose for the 328 is different than the 325