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E46 M3 (2001-2006) Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006.


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Old Tue, Nov-14-2017, 11:27:52 PM   #41
TboneM3
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Default Re: My $50 Baffled Oil Catch Can

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Originally Posted by terraphantm View Post
CSL PVC lines? Only part I can think of that you need to buy is 11157833649, and that's $25
The other one is over $100. It doesn't really matter, I could have made my own lines without the catch can and saved $33 more, but my main point was that this DIY was fun and inexpensive.

Leave it M3F to pick anything apart lol. I'm guilty of it too lol. We're the most pedantic and critical bunch
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-Evolve-R alpha N Evolve CSL CF Airbox eVenturi Scoop Euro Headers|sect 1 Besian D/A pullies/fan delete WPC rod bearings
-TMS Camber & Subf plates RE Street Trans Mounts AKG poly SUB/DIFF SDW RTAB ZHP knob + UUC DSSR GroundControl S/A (Koni/Eibach 440/550) + tall RSMs
-OE CSL trunk APEX 75mm Studs Sportline 8S 18x8.5/9.5" PSS 245/275 ss brake/clutch lines
-Pioneer DEH-80PRS Eclipse PA5422 CDT HD-6 + WS-100i CDT EX-530 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 PPI 1600.4 CDT HD-6 + HD-100 CDT EX-530 Clarion 10"
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Old Tue, Nov-14-2017, 11:42:29 PM   #42
Dr M3an M3
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Default Re: My $50 Baffled Oil Catch Can

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Originally Posted by TboneM3 View Post
The other one is over $100. It doesn't really matter, I could have made my own lines without the catch can and saved $33 more, but my main point was that this DIY was fun and inexpensive.

Leave it M3F to pick anything apart lol. I'm guilty of it too lol. We're the most pedantic and critical bunch
I hope that what I wrote was not interpreted wrong. I go back and forth on this. On one hand, I love DIY projects like this, and aside from the minuscule weight gain (and more up-keep with regards to dumping a full catch can), I don't see how this mod could be anything other than a positive modification, even if it was found to do nothing at all (What I mean is, it shouldn't hurt anything and if anything, maybe it's helps). On the other hand, blow back really isn't an issue with naturally aspirated engines and I wonder if this functionally makes sense to do (any condensation should burn right off when the motor is at operating temp, and the re-condensed oil vapor returned to the oil pan via the return hose). I've not seen anything that would suggest that their is any real reason that this would be something to consider doing, other than the engine bling factor and the pride one feels after a good DIY project. If it keeps the inside of the airbox clean for ~$50 bucks, then I can see a small OCD benefit (which I am guilty of), but at the same time, I've not seen people report that their airboxes are getting gunked up without one (and if they are, it's likely due to a reason that should be addressed at the site of the culprit rather than through a bandaid fix). But I still appreciate you sharing DIYs like this. At the very least, it is useful to those with FI applications. I for one, still found it entertaining to follow.

...and like i've said, I've been on the fence on this. It seems M3forums is split on adding a catch can after converting to a CSL airbox, so i figured it was a worth while discussion to have considering how many people do venture down this route.
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Old Wed, Nov-15-2017, 12:02:47 AM   #43
terraphantm
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Default Re: My $50 Baffled Oil Catch Can

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Originally Posted by TboneM3 View Post
The other one is over $100. It doesn't really matter, I could have made my own lines without the catch can and saved $33 more, but my main point was that this DIY was fun and inexpensive.

Leave it M3F to pick anything apart lol. I'm guilty of it too lol. We're the most pedantic and critical bunch
What other part are you talking about though?
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Old Wed, Nov-15-2017, 12:17:06 AM   #44
TboneM3
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Default Re: My $50 Baffled Oil Catch Can

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Originally Posted by terraphantm View Post
What other part are you talking about though?
Air shut off valve #11617833647

-

Leighton - Don't worry man we're all here, at least in part, for the pursuit of true information and we would like to know whether much gunk ends back in the intake or not, and there's nothing wrong with that!

I'm just saying, it's easy for us, myself included, to spend hours/days arguing about something that would net .0000312341 whp or add 24 grams to the engine bay *gasp* and maybe we can take a step back and just enjoy the car and the modding.

My stock airbox was fairly dirty, but it has 173k on it so...
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-Evolve-R alpha N Evolve CSL CF Airbox eVenturi Scoop Euro Headers|sect 1 Besian D/A pullies/fan delete WPC rod bearings
-TMS Camber & Subf plates RE Street Trans Mounts AKG poly SUB/DIFF SDW RTAB ZHP knob + UUC DSSR GroundControl S/A (Koni/Eibach 440/550) + tall RSMs
-OE CSL trunk APEX 75mm Studs Sportline 8S 18x8.5/9.5" PSS 245/275 ss brake/clutch lines
-Pioneer DEH-80PRS Eclipse PA5422 CDT HD-6 + WS-100i CDT EX-530 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 PPI 1600.4 CDT HD-6 + HD-100 CDT EX-530 Clarion 10"
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Old Wed, Nov-15-2017, 12:19:51 AM   #45
terraphantm
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Default Re: My $50 Baffled Oil Catch Can

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Air shut off valve #11617833647
Catch can doesn't eliminate that though - it has nothing to do with the PCV
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Old Wed, Nov-15-2017, 12:30:23 AM   #46
TboneM3
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Default Re: My $50 Baffled Oil Catch Can

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Originally Posted by terraphantm View Post
Catch can doesn't eliminate that though - it has nothing to do with the PCV
I didn't say it eliminated it. I just said that I didn't buy as I did my own custom thing (hoses/clamps) as you can see in the pics.

And I said PCV because I couldn't remember the name, "CSL air shut off valve."

This DIY and this issue of crankcase ventilation doesn't need such scrutiny

Do a catch can if you want. If you don't want to, don't
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/// 2004 SilberGrau M3 Coupe 6MT slicktop manual seats no nav______________________JOURNAL

-Evolve-R alpha N Evolve CSL CF Airbox eVenturi Scoop Euro Headers|sect 1 Besian D/A pullies/fan delete WPC rod bearings
-TMS Camber & Subf plates RE Street Trans Mounts AKG poly SUB/DIFF SDW RTAB ZHP knob + UUC DSSR GroundControl S/A (Koni/Eibach 440/550) + tall RSMs
-OE CSL trunk APEX 75mm Studs Sportline 8S 18x8.5/9.5" PSS 245/275 ss brake/clutch lines
-Pioneer DEH-80PRS Eclipse PA5422 CDT HD-6 + WS-100i CDT EX-530 8" Kicker

DD/Beater: 1999 Civic LX - Kenwood x998 PPI 1600.4 CDT HD-6 + HD-100 CDT EX-530 Clarion 10"
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Old Wed, Nov-15-2017, 02:32:25 PM   #47
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Default Re: My $50 Baffled Oil Catch Can

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Originally Posted by TboneM3 View Post
The other one is over $100. It doesn't really matter, I could have made my own lines without the catch can and saved $33 more, but my main point was that this DIY was fun and inexpensive.

Leave it M3F to pick anything apart lol. I'm guilty of it too lol. We're the most pedantic and critical bunch


Interesting how small improvements or differences can make a thread go crazy

On a serious note, I will definitely be using this as a reference when I get a CSL box. Less gunk in the intake the better in my eyes!
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Discussing My $50 Baffled Oil Catch Can in the E46 M3 (2001-2006) Forum - Engine: S54 - Max Hp: 333 hp at 7,900 rpm / 262 lb/ft at 4,900 rpm
Total Produced: 45,000+ - Years Produced: 2001 to 2006. at BMW M3 Forum.com (E30 M3 | E36 M3 | E46 M3 | E92 M3 | F80/X)