BMW 1 Series Coupe Forum / 1 Series Convertible Forum (1M / tii / 135i / 128i / Coupe / Cabrio / Hatchback) (BMW E82 E88 128i 130i 135i)
 





 

Post Reply
 
Thread Tools Search this Thread
      11-13-2011, 01:24 PM   #1
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

Mr. TT'ed my AFE Stage 2 Intake-Cowl induction!

hey guys this is the last mod to my car in preperation for BIGGER turbos. The base AFE stage 2 is a great true cold air intake, however in base form it has the same area of fresh air draw as the factory intake, so I wanted to use the auxilliary port on the AFE which increases the inlet area by 4.5 sq/in. A friend and I hand made this duct to fit in the passenger side cowl area so i could pull from ambient pressurized air at speed, the duct is made from 2.5" hand hammered stainless tube and is riveted to the plastic cowl:

here is the finished system with the duct riveted to the cowl:

another angle where you can see the cold air path to the duct:


This mod in addition to my Macht Schnell scoops in the front should insure an ample supply of cold air to the BIGGER snails!
Appreciate 0
      11-13-2011, 04:08 PM   #2
xerox445
Damenslip-Tropfer
23
Rep
543
Posts

Drives: 2008 SGM 135i
Join Date: May 2011
Location: LBI, NJ

iTrader: (1)

Seems like it would create a vacuum at speed.
Appreciate 0
      11-13-2011, 04:21 PM   #3
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

Quote:
Originally Posted by xerox445 View Post
Seems like it would create a vacuum at speed.
The base of the windshield is usually a source of high pressure much like the front of the car! This is why your fresh air pickup for your ventilation system is located there, if there was a vacuum your ventilation system would degrade as vehicle speed increased. However this phenomenon doesn't really kick in until 90 + mph where you can actually start to see positive pressure! Take a look at this pic of of a similarly shaped Volvo s80:


My main goal with this is to provide the turbos with as much unrestricted ambient airflow as possible

Last edited by TurboBullett@Ambient Thermal Management; 11-13-2011 at 04:27 PM..
Appreciate 0
      11-13-2011, 05:28 PM   #4
xerox445
Damenslip-Tropfer
23
Rep
543
Posts

Drives: 2008 SGM 135i
Join Date: May 2011
Location: LBI, NJ

iTrader: (1)

I'd love to see a map sensor reading in that pipe.
Appreciate 0
      11-13-2011, 05:39 PM   #5
ken1137
Brigadier General
ken1137's Avatar
United_States
89
Rep
3,732
Posts

Drives: BMW S1000XR
Join Date: Jun 2011
Location: Gilbert, AZ

iTrader: (7)

Garage List
2009 e90 335i  [6.40]
Awesome...I'm sure you already upgraded your FMIC and diverted valves so let us know when the bigger turbos are installed. I'm interested in the doing the same in the future
__________________

BMWCCA member
Appreciate 0
      11-15-2011, 01:55 AM   #6
Si-M240i
Major
United Kingdom
136
Rep
1,450
Posts

Drives: M240i LCI
Join Date: Aug 2008
Location: England

iTrader: (0)

I fitted an additional air feed to my AFE stage 2 as well, but i took mine from next to the FMIC. pics on here if you do a search on my posts
__________________
M240i LCI (Mineral Grey):- M2 Door Mirrors, M2 Black Kidney Grills, Lower grille inserts, MP Exhaust, Dinan Carbon Fibre CAI, hot climate intake elbow
Appreciate 0
      11-15-2011, 07:22 AM   #7
IGoFast1589
Captain
IGoFast1589's Avatar
49
Rep
654
Posts

Drives: 08 135i
Join Date: Nov 2010
Location: NY

iTrader: (2)

Creative stuff... Very cool. Have you logged any intake air temps with and without the additional hosing to see if makes a difference?
Appreciate 0
      11-15-2011, 07:33 AM   #8
Ducatist
Private
South Korea
3
Rep
56
Posts

Drives: 2008 135i
Join Date: Nov 2011
Location: Glendale CA.

iTrader: (0)

brillant!
but I assume that you gotta find a way to prevent water getting inside, while raining.
BTW i was thinking to get previous ver. of afe CAI ( the one with dual filter). and guess I gotta get that boxed one too.

looks nice and reasonable.
Appreciate 0
      11-15-2011, 10:01 AM   #9
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

Quote:
Originally Posted by IGoFast1589 View Post
Creative stuff... Very cool. Have you logged any intake air temps with and without the additional hosing to see if makes a difference?
The box has always stayed cold prior to this. The main reason was to provide as little restriction as possible in the intake tract as well as have the air flow on both ends of the filter!
Appreciate 0
      11-15-2011, 10:03 AM   #10
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

Quote:
Originally Posted by Ducatist View Post
brillant!
but I assume that you gotta find a way to prevent water getting inside, while raining.
BTW i was thinking to get previous ver. of afe CAI ( the one with dual filter). and guess I gotta get that boxed one too.

looks nice and reasonable.
The cowl duct is well under the hood, and the water off the windshield is diverted to the sides if the cowl. I'd go for this intake it's a better version of the already good factory box!
Appreciate 0
      11-17-2011, 07:01 PM   #11
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

Quote:
Originally Posted by Ducatist View Post
brillant!
but I assume that you gotta find a way to prevent water getting inside, while raining.
BTW i was thinking to get previous ver. of afe CAI ( the one with dual filter). and guess I gotta get that boxed one too.

looks nice and reasonable.
Update, it rained very hard here yesterday and the area where the duct is placed stayed bone dry,
Appreciate 0
      12-13-2011, 11:44 AM   #12
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

just redid the inlet with silicone to replace to the spiral tube, a pain in the ass but worth it
[IMG][/IMG]
Appreciate 0
      12-14-2011, 09:57 AM   #13
1fastbmw
Second Lieutenant
1fastbmw's Avatar
23
Rep
215
Posts

Drives: 2009 135i
Join Date: Feb 2010
Location: Chesterfield, MI

iTrader: (4)

Garage List
2009 135i  [10.00]
Looks great, very tempting.
__________________
JB4 l Berk AB l AP Mids l PLM DP's l RSD CP l Injen CAI l BSH OCC l ETS FMIC l Koni FSD's l BMW Performance Springs l Complete M3 Frt & Rear l Dinan Shock Mnts & Camber Plates l Quaife LSD l Morel Speakers l Zapco Amps l BMW SS Pedals l Pearlescent Brake Handle l 30% Tint l ICarbon Dry Diffuser l Matte / Gloss Grills l Black 135i emblem l P3 V2 Gauge l SF-71's l Conti DW's 235/265-19's l LCI Tails l Lux H8
Appreciate 0
      12-14-2011, 10:31 AM   #14
IGoFast1589
Captain
IGoFast1589's Avatar
49
Rep
654
Posts

Drives: 08 135i
Join Date: Nov 2010
Location: NY

iTrader: (2)

To me it looks like airflow is going to come up and out through the tubing you created.
Appreciate 0
      12-14-2011, 12:39 PM   #15
My135
Lieutenant Colonel
85
Rep
1,609
Posts

Drives:
Join Date: Mar 2008

iTrader: (0)

I don't think it works, either the air will come in from one end and go out on the other end or both air enter and will create turbulance inside the air box.
__________________
7/08 135 Coupe, Crimson Red, 6 SP, Sport, Taupe Lette/Aluminum. Performance Mods: JB4 on Map 5, BMS DP Fix V3, Injen polished intake, AR Catless DP, Maddad resonated mid-pipes, aFe exhaust polished tips, ST Suspension Coil Over and Hotchkis front sway bar. Others: BMS OCC, BT Scanner, Mud Flap. Next Mods: AA Front Strut Brace.
Appreciate 0
      12-14-2011, 10:40 PM   #16
Ducatist
Private
South Korea
3
Rep
56
Posts

Drives: 2008 135i
Join Date: Nov 2011
Location: Glendale CA.

iTrader: (0)

Quote:
Originally Posted by My135 View Post
I don't think it works, either the air will come in from one end and go out on the other end or both air enter and will create turbulance inside the air box.
partly agree.

but, I think this mod was not only to ram the air inside, but also to make the closed sys. closer to opened sys, without heatsoak.
Appreciate 0
      12-15-2011, 04:37 AM   #17
TurboBullett@Ambient Thermal Management
Major
TurboBullett@Ambient Thermal Management's Avatar
80
Rep
1,283
Posts

Drives: 2012 Abarth 500
Join Date: Jun 2007
Location: NJ

iTrader: (3)

The goal here was to provide a cold air source that provides "ample" cold air! My main concern is not bottle necking my system once I go big turbo!(its been proven the restriction of the stock box is the inlets from the front of the car as they enter the box) Once I hit that theoretical choke point on the stock inlet the suction(pressure differential) will bring the auxiliary port into play. if the airflow coming into the box is more than is needed I am ok with it going back out the back in my experience designing intake systems this should work very well as both inlets are located in high pressure areas sealed off from the heat. and give the cone filter located in the box a fresh air source at the front and back of the filter!

heres a pic of an intake i worked on with a friend on his S4, it featured a lower velocity stack inlet and a track only headlight ram air system!

Last edited by TurboBullett@Ambient Thermal Management; 12-15-2011 at 06:28 AM..
Appreciate 0
Post Reply

Bookmarks

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off



All times are GMT -5. The time now is 04:06 PM.




1addicts
Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
1Addicts.com, BIMMERPOST.com, E90Post.com, F30Post.com, M3Post.com, ZPost.com, 5Post.com, 6Post.com, 7Post.com, XBimmers.com logo and trademark are properties of BIMMERPOST