Design: Eat where you poop - E46Fanatics E46 BMW Social Directory E46 FAQ 3-Series Discussion Forums BMW Photo Gallery BMW 3-Series Technical Information E46 Fanatics - The Ultimate BMW Resource BMW Vendors General E46 Forum The Tire Rack's Tire Wheel Forum Forced Induction Forum The Off-Topic The E46 BMW Showroom For Sale, For Trade or Wanting to Buy

Go Back   E46Fanatics > BMW News from around the Web

BMW News from around the Web
Submit the latest BMW news from around the world for other E46Fanatics members to check out.

Thread Tools Search this Thread Rate Thread Display Modes
Old 07-27-2019, 10:32 AM   #1
Registered User
Join Date: Sep 2014
Location: Greater Seattle, WA
Posts: 337
My Ride: F22 M235i, F80 M3
Design: Eat where you poop

I'm not sure if this is correct forum to discuss this ...

It's interesting why partially combusted gas/oil/air mixture is vented thru the PCV and fed back into the intake valves, why not fed into the exhaust? Is this done all in the name of saving gas and improving emission ctrl?

This is the same design issue as the M16 assault rifle direct impingement where they fondly call it: eating where you poop.

You need more invasive maintenance (like wallet blasting of the valves)
Increase intake valves choking and decrease efficient gas flow
Definitely decrease longevity of the engine

What are your thoughts?
2018 (F80) M3 (Garage Baby) | 6MT | Comp Pkg | Exec Pkg
2015 (F22) M235i xDrive (daily commuter) | 8AT | Prem Pkg | Tech Pkg | HK Snd | Cold Weather Pkg | Driver's Assist Pkg | MPE
2004 (E46) 330i AT (Project car)
2015 335xi AT (Sold) | 2009 335i 6MT (Sold) | 2006 325i my kid's car (Sold & regretted)
DrivingPassion is offline   Reply With Quote
Old 07-28-2019, 09:26 PM   #2
Registered User
Join Date: Mar 2019
Location: Colorado, USA
Posts: 614
My Ride: 325xi, '07 E60 M5
Year: 2003
Transmission: 5spd Manual
Design: Eat where you poop

You just answered your own question...its solely for emissions/mpg. Cars used to be catless, everything exposed to atmosphere, dumping excess coolant on the ground

Sent from my iPad using E46Fanatics

Last edited by darkfires102; 07-28-2019 at 09:26 PM.
darkfires102 is offline   Reply With Quote
Old 03-13-2020, 11:55 PM   #3
Registered User
Join Date: Mar 2017
Location: India
Posts: 3
My Ride: honda city
The maintenance is expensive as the engine becomes
Brainmine Web Solutions is one of the best
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
Brainmine is offline   Reply With Quote
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes Rate This Thread
Rate This Thread:

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Censor is ON

All times are GMT -5. The time now is 07:29 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
(c) 1999 - VerticalScope Inc. All rights reserved.