Request: Pics of Full Underbody!!!

M_BYEEE · 06-19-2011, 08:58 PM

I have been searching and searching for good pics of the entire underbody of a 135 but have had very little luck. I've tried searching in the photos/videos, general exhaust~engine mods, and DIY sections

...the best I have found was from Active Autowerke but I was hoping to see a little further towards the front of the car as well. Please dont flame me I just got to frustrated to continue looking...hopefully one of you guys has a shot or knows of a post! Thanks guys

OneThreeFive · 06-20-2011, 08:15 AM

How about this one?

BrokenVert · 06-20-2011, 08:27 AM

^beat me to it.

Just for the OPs sake there is a plastic undertray that goes from the front bumper to right around where the red circle is that has been removed in this photo

M_BYEEE · 06-20-2011, 12:11 PM

thanks guys!!! this is exactly what I was looking for

Fidiman · 06-21-2011, 01:04 PM

What's the piece near to the exhaust pipe on which is written "Active Autowerke" ?

Salazar · 06-21-2011, 01:38 PM

Quote:

Originally Posted by Fidiman

What's the piece near to the exhaust pipe on which is written "Active Autowerke" ?

I am assuming it is some sort of sound dampening design to reduce drone.. just my guess

VALAS135i · 06-21-2011, 01:56 PM

Quote:

Originally Posted by Salazar

I am assuming it is some sort of sound dampening design to reduce drone.. just my guess

Yes, its a silencer in essence. My CP-E Exhause has the same setup.

M_BYEEE · 06-22-2011, 12:11 AM

yea its like a noise canceling chamber...to help reduce drone....there is a technical term for it but I cant think of it right now. This is the exhaust setup I have actually the AA its a super nice piece and it sounds crazy with WOT! Cant wait to upgrade midpipes and dps

Dackelone · 06-22-2011, 02:58 AM

Here are a few more shots (from my collection of threads on 1addicts)that might help you out?

Why did you want to see whats underneath the car anyway?

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PS: this last shot I think might be of a M3 and not a 135i ? I think the finned diff is a clue. ?

Focusedintntions · 06-22-2011, 07:52 AM

The last shot is def an M3, the finned diff cover, the lower control arms are all stamped with M, also the location of the muffler

M_BYEEE · 06-22-2011, 09:09 PM

Quote:

Originally Posted by Dackelone

Why did you want to see whats underneath the car anyway?

Toying with the idea of running a custom quad exhaust with a custom diffuser. Still in the preliminary stage but I just wanted to get an idea of what kind of room we are working with. I think all the current set ups set the tips to wide. I like the placement of the Hartge exhaust/diffuser combo. BUT they wont sell the diffuser separately, I dont want there big clunky exhaust and I dont have 3k to spend on a diffuser and axleback

matt · 06-23-2011, 02:13 AM

does the 1m diff fit to the 135i?

Focusedintntions · 06-23-2011, 07:48 AM

Only if you get the different subframe I believe is what has been said.

eduz · 05-30-2013, 10:13 AM

Hi guys, i'm a new member and I'm making a work for university about aerodynamics of the BMW series 1 F20/F21.
I would like to know if anyone has the photos of the underbody of the car that i can't find anywhere on the internet.

Is there also someone that has something about the aerodynamic of the car? Air flow around the car or also models of CFD (computation fluid dynamics)?
Thank you very much for helping!

eduz

MightyMouseTech · 05-30-2013, 10:19 AM

Quote:

Originally Posted by Fidiman

What's the piece near to the exhaust pipe on which is written "Active Autowerke" ?

That type of piece is called a Helmholtz Resonance Chamber. They are used on intakes and exhausts. They are used to both improve flow and reduce noise.

http://en.wikipedia.org/wiki/Helmholtz_resonance

Mr Kleen · 05-30-2013, 10:47 AM

That last shot is a 1M.

BrokenVert · 05-30-2013, 10:50 AM

Quote:

Originally Posted by Mr Kleen

That last shot is a 1M.

That or a 135 with a quad exhaust and the rear lower camber link conversion.

The M3 has dual pipes and dual mufflers.

BrokenVert · 05-30-2013, 10:52 AM

Quote:

Originally Posted by eduz

Hi guys, i'm a new member and I'm making a work for university about aerodynamics of the BMW series 1 F20/F21.
I would like to know if anyone has the photos of the underbody of the car that i can't find anywhere on the internet.

Is there also someone that has something about the aerodynamic of the car? Air flow around the car or also models of CFD (computation fluid dynamics)?
Thank you very much for helping!

eduz

Is this for a dissertation? Also id suggest making your own thread for this.

Mr Kleen · 05-30-2013, 11:06 AM

Quote:

Originally Posted by BrokenVert

That or a 135 with a quad exhaust and the rear lower camber link conversion.

And the 1M battery box, and the 1M charcoal cannister, and the 1M heat shielding, and enough other parts that everything you're seeing is a 1M. The trunk area looks too small, to my eyes, to be a 3er.

Also, the jpg is "eisenmann_exhaust_1m....jpg"

Come on, Dak. You know this stuff better than I do!

Webb70 · 05-30-2013, 12:06 PM

Quote:

Originally Posted by amg135i

yea its like a noise canceling chamber...to help reduce drone....there is a technical term for it but I cant think of it right now. This is the exhaust setup I have actually the AA its a super nice piece and it sounds crazy with WOT! Cant wait to upgrade midpipes and dps

I also have the same exhaust, I just installed it and absolutely Love the sound !!!

BrokenVert · 05-30-2013, 12:08 PM

Quote:

Originally Posted by Mr Kleen

And the 1M battery box, and the 1M charcoal cannister, and the 1M heat shielding, and enough other parts that everything you're seeing is a 1M. The trunk area looks too small, to my eyes, to be a 3er.

Also, the jpg is "eisenmann_exhaust_1m....jpg"

Come on, Dak. You know this stuff better than I do!

Well. Damn.

eduz · 05-30-2013, 02:07 PM

Quote:

Originally Posted by BrokenVert

Is this for a dissertation? Also id suggest making your own thread for this.

BrokenVert thank you very much for your reply. Could you please indicate me the right section where i can open the topic?
I tried in the Photo section but i don't know why i don't have the permission!

(sorry for the off topic)

06-19-2011, 08:58 PM	#1
M_BYEEE Brigadier General 145 Rep 3,269 Posts Drives: BSM X5M Join Date: Oct 2009 Location: Camarillo, CA iTrader: (7)	Request: Pics of Full Underbody!!! I have been searching and searching for good pics of the entire underbody of a 135 but have had very little luck. I've tried searching in the photos/videos, general exhaust~engine mods, and DIY sections ...the best I have found was from Active Autowerke but I was hoping to see a little further towards the front of the car as well. Please dont flame me I just got to frustrated to continue looking...hopefully one of you guys has a shot or knows of a post! Thanks guys Attached Images __________________
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06-20-2011, 08:15 AM	#2
OneThreeFive Lieutenant 42 Rep 596 Posts Drives: 2008 E90 M3 Join Date: May 2009 Location: NoVA iTrader: (12) Garage List 2008 BMW M3 \| SOLD [10.00] 1999 BMW M3 \| SOLD [0.00] 2009 BMW 135i \| SOLD [10.00]	How about this one?
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06-20-2011, 08:27 AM	#3
BrokenVert Resident Kerbalnaut 477 Rep 10,703 Posts Drives: Topless Brute/Hybrid Boogaloo Join Date: Apr 2009 Location: Fahrvergnügen/NY iTrader: (0)	^beat me to it. Just for the OPs sake there is a plastic undertray that goes from the front bumper to right around where the red circle is that has been removed in this photo __________________
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06-20-2011, 12:11 PM	#4
M_BYEEE Brigadier General 145 Rep 3,269 Posts Drives: BSM X5M Join Date: Oct 2009 Location: Camarillo, CA iTrader: (7)	thanks guys!!! this is exactly what I was looking for __________________
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06-21-2011, 01:04 PM	#5
Fidiman Captain 113 Rep 614 Posts Drives: BMW 120d e82 M Sportpaket Join Date: Mar 2011 Location: France iTrader: (0) Garage List 2010 120d E82 [10.00]	What's the piece near to the exhaust pipe on which is written "Active Autowerke" ?
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06-22-2011, 12:11 AM	#8
M_BYEEE Brigadier General 145 Rep 3,269 Posts Drives: BSM X5M Join Date: Oct 2009 Location: Camarillo, CA iTrader: (7)	yea its like a noise canceling chamber...to help reduce drone....there is a technical term for it but I cant think of it right now. This is the exhaust setup I have actually the AA its a super nice piece and it sounds crazy with WOT! Cant wait to upgrade midpipes and dps __________________
	Appreciate 0 Quote

06-22-2011, 02:58 AM	#9
Dackelone European Editor 10532 Rep 22,992 Posts Drives: N54 e82 Join Date: Feb 2010 Location: Bayern, Germany iTrader: (1)	Here are a few more shots (from my collection of threads on 1addicts)that might help you out? Why did you want to see whats underneath the car anyway? PS: this last shot I think might be of a M3 and not a 135i ? I think the finned diff is a clue. ? Last edited by Dackelone; 06-22-2011 at 03:09 AM..
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06-22-2011, 07:52 AM	#10
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	The last shot is def an M3, the finned diff cover, the lower control arms are all stamped with M, also the location of the muffler __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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06-23-2011, 02:13 AM	#12
matt Captain 61 Rep 613 Posts Drives: munichs finest Join Date: Oct 2006 Location: Stuttgart iTrader: (0)	does the 1m diff fit to the 135i? __________________ f*ckin' love my car <3
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06-23-2011, 07:48 AM	#13
Focusedintntions Colonel 105 Rep 2,696 Posts Drives: 2011 135i M-Sport :D Join Date: Nov 2010 Location: NoVA iTrader: (1)	Only if you get the different subframe I believe is what has been said. __________________ Faster, faster, faster, until the thrill of speed overcomes the fear of death… – Hunter Thompson
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05-30-2013, 10:13 AM	#14
eduz New Member 0 Rep 6 Posts Drives: lancia Y Join Date: May 2013 Location: Italy iTrader: (0)	Hi guys, i'm a new member and I'm making a work for university about aerodynamics of the BMW series 1 F20/F21. I would like to know if anyone has the photos of the underbody of the car that i can't find anywhere on the internet. Is there also someone that has something about the aerodynamic of the car? Air flow around the car or also models of CFD (computation fluid dynamics)? Thank you very much for helping! eduz
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05-30-2013, 10:47 AM	#16
Mr Kleen teh porcupine 96 Rep 1,726 Posts Drives: 2020 Tesla 3 LR AWD Join Date: May 2011 Location: penthouse iTrader: (1) Garage List 2013 BMW X1 [10.00]	That last shot is a 1M. __________________ 1addicts Stelv1o 2.0!
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