THE LARGEST BMW 2-SERIES FORUM ON THE PLANET
2Addicts
2Addicts
BMW Garage BMW Meets Register Search Today's Posts Mark Forums Read
2Addicts | BMW 2-Series forum Technical Topics N55 (M235i) Engine, Transmission, Exhaust, Tuning Turbo inlet pipe upgrade

Post Reply
 
Thread Tools Search this Thread
      06-08-2016, 11:16 AM   #1
Bee Pee
Colonel
United Kingdom
330
Rep
2,339
Posts

Drives: F20 M135i auto EB2
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Send a message via Skype™ to Bee Pee
Turbo inlet pipe upgrade

BIMMERPOST
     Featured on BIMMERPOST.com
Reading thru BryanF22 thread about CP's, post # 15 got my attention:-

http://www.2addicts.com/forums/showp...2&postcount=15



The stock inlet pipe - item 1 in the picture above - is common, to both PWG and EWG cars and it tapers to the stock PWG compressor wheel size. Great for PWG cars and despite EWG turbos having a larger compressor wheel, it appears BMW reused the same inlet pipe from old turbo.

To conclude then, for EWG cars, the connection at compressor housing is smaller than the compressor wheel. I had hoped the equivalent M2 part would be an OEM upgrade ie less / no tapering suited to larger inlet of the EWG turbo. Alas, M2 shares the same part.

I have read Pure hi flow inlet pipe is a canny upgrade as it opens up the diameter of the inlet pipe allows the EWG turbo to breathe more easily ie lower PWM values to achieve the same boost levels.

Any tips/go-bys on DIY install of Pure hi flow inlet pipe most welcome.

Thanks in advance,

BP
__________________
F20 M135i EB AT with options - what a hoot !
Appreciate 0
      06-08-2016, 11:36 AM   #2
Luminous
Captain
Luminous's Avatar
417
Rep
773
Posts

Drives: 2015 BSM M235xi
Join Date: Feb 2015
Location: Westchester County, NY

iTrader: (1)

I'm not sure how useful the larger inlet pipe will be on a stock turbo. If you upgrade to a larger turbo I would highly recommend it to take full advantage of the turbo.

Edit: also I would recommend purchasing the preassembled unit from pure, otherwise you'll need to cut and glue your stock inlet.
__________________
2015 BSM M235xi | Enzo Big Turbo Kit | Enzo Flash | JB4 | Garrett GTX3586 | TiAL BOV | TiAL Wastegate | Enzo Manifold | Enzo DP | PDU PI | Fuel-It Stage 2 LPFP | ATM FMIC | ER CP | Tuningwerk Exhaust | HRE FF15s

F Series N55 1/4 Mile World Record: 11.2s @ 127mph (Pure Stage 2)
Appreciate 2
      06-08-2016, 11:40 AM   #3
Mywifes335
Major
Mywifes335's Avatar
United_States
1363
Rep
1,358
Posts

Drives: 2014 FBO M235i
Join Date: Oct 2010
Location: DFW

iTrader: (1)

Quote:
Originally Posted by Luminous View Post
I'm not sure how useful the larger inlet pipe will be on a stock turbo. If you upgrade to a larger turbo I would highly recommend it to take full advantage of the turbo.

Edit: also I would recommend purchasing the preassembled unit from pure, otherwise you'll need to cut and glue your stock inlet.
Hey man, I heeded your advice. I got that AND the dv+. The waiting time for delivery of the PS2 is palpable to say the least.
__________________
Quote:
Originally Posted by Axius View Post
Why the sad face, I fucking love sausage.
Appreciate 0
      06-08-2016, 11:45 AM   #4
Luminous
Captain
Luminous's Avatar
417
Rep
773
Posts

Drives: 2015 BSM M235xi
Join Date: Feb 2015
Location: Westchester County, NY

iTrader: (1)

Quote:
Originally Posted by Mywifes335
Quote:
Originally Posted by Luminous View Post
I'm not sure how useful the larger inlet pipe will be on a stock turbo. If you upgrade to a larger turbo I would highly recommend it to take full advantage of the turbo.

Edit: also I would recommend purchasing the preassembled unit from pure, otherwise you'll need to cut and glue your stock inlet.
Hey man, I heeded your advice. I got that AND the dv+. The waiting time for delivery of the PS2 is palpable to say the least.
Good call. The stock DV would definitely leak or tear eventually and it's much easier to upgrade while you're doing the turbo.

How long is the current wait from pure?
__________________
2015 BSM M235xi | Enzo Big Turbo Kit | Enzo Flash | JB4 | Garrett GTX3586 | TiAL BOV | TiAL Wastegate | Enzo Manifold | Enzo DP | PDU PI | Fuel-It Stage 2 LPFP | ATM FMIC | ER CP | Tuningwerk Exhaust | HRE FF15s

F Series N55 1/4 Mile World Record: 11.2s @ 127mph (Pure Stage 2)
Appreciate 0
      06-08-2016, 12:03 PM   #5
Bee Pee
Colonel
United Kingdom
330
Rep
2,339
Posts

Drives: F20 M135i auto EB2
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Send a message via Skype™ to Bee Pee
Quote:
Originally Posted by Luminous View Post
I'm not sure how useful the larger inlet pipe will be on a stock turbo. If you upgrade to a larger turbo I would highly recommend it to take full advantage of the turbo.

Edit: also I would recommend purchasing the preassembled unit from pure, otherwise you'll need to cut and glue your stock inlet.
Luminous,

Yes I plan to go for option 2.

I've read folks have seen drops in PWM whilst maintaining same boost levels on EWG cars with stock turbo.

There's definitely merit in opening up the inlet side even for stock EWG users.

Any standalone retrofit install threads on here or PDF of the PURE install instructions to have a look at ?

Cheers,

BP
__________________
F20 M135i EB AT with options - what a hoot !
Appreciate 0
      06-08-2016, 12:06 PM   #6
Mywifes335
Major
Mywifes335's Avatar
United_States
1363
Rep
1,358
Posts

Drives: 2014 FBO M235i
Join Date: Oct 2010
Location: DFW

iTrader: (1)

Quote:
Originally Posted by Luminous View Post
Good call. The stock DV would definitely leak or tear eventually and it's much easier to upgrade while you're doing the turbo.

How long is the current wait from pure?
Thanks! Delivery before 26th... So just over 2 weeks...
__________________
Quote:
Originally Posted by Axius View Post
Why the sad face, I fucking love sausage.
Appreciate 1
      06-08-2016, 01:16 PM   #7
Drpoomanchu
First Lieutenant
Drpoomanchu's Avatar
United_States
76
Rep
328
Posts

Drives: AW M235i
Join Date: Aug 2015
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by Bee Pee
Quote:
Originally Posted by Luminous View Post
I'm not sure how useful the larger inlet pipe will be on a stock turbo. If you upgrade to a larger turbo I would highly recommend it to take full advantage of the turbo.

Edit: also I would recommend purchasing the preassembled unit from pure, otherwise you'll need to cut and glue your stock inlet.
Luminous,

Yes I plan to go for option 2.

I've read folks have seen drops in PWM whilst maintaining same boost levels on EWG cars with stock turbo.

There's definitely merit in opening up the inlet side even for stock EWG users.

Any standalone retrofit install threads on here or PDF of the PURE install instructions to have a look at ?

Cheers,

BP
I am interested in this as well...
Appreciate 0
      06-09-2016, 01:52 AM   #8
FrankiE90
Major General
FrankiE90's Avatar
United_States
380
Rep
8,789
Posts

Drives: Krooked Sk8board
Join Date: Feb 2008
Location: Pasadena, Ca

iTrader: (11)

Send a message via Skype™ to FrankiE90
Not easiest install. If building n55 w turbo and fuel upgrade maybe look into. But the cost per HP may not make sense compared to say N54. Inlet install would be a conversation to say u did it to a n55. Rather save and spend money on nicer suspension for example.
__________________
FrankiE90 AKA:.[The TANK] *CLICK THE SIG
E90s (been gone but not forgotten) KW clubsports 18" BBS GT4 // Build E30 (pending) + E46 M3 Wagon ESTORIL Blue
Appreciate 0
      06-09-2016, 02:18 AM   #9
Bee Pee
Colonel
United Kingdom
330
Rep
2,339
Posts

Drives: F20 M135i auto EB2
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Send a message via Skype™ to Bee Pee
Quote:
Originally Posted by FrankiE90 View Post
Not easiest install. If building n55 w turbo and fuel upgrade maybe look into. But the cost per HP may not make sense compared to say N54. Inlet install would be a conversation to say u did it to a n55. Rather save and spend money on nicer suspension for example.
My cars chassis (suspension and brakes) already sorted.

Oem inlet on EWG is actually tapered so the bore of the pipe (at the coupling to turbo inlet) is smaller and so creates a restriction as far as flow into the compressor side of the turbo. Fitting the pipe with large bore will remove this restriction allowing better flow, less load on the turbo and improved throttle response.
__________________
F20 M135i EB AT with options - what a hoot !
Appreciate 0
      06-12-2016, 03:10 PM   #10
bryan_f22
Because Race Car
bryan_f22's Avatar
235
Rep
595
Posts

Drives: It's white... has 4 tires...
Join Date: Jun 2012
Location: Queens, NY

iTrader: (0)

I upgraded all the piping because i didn't want to have the other hoses bust under pressure like the CP did.

The piping from ER for the FMIC is much bigger than stock. maybe 1/4 to 1/2 inch larger so more air does flow.

i think its a great upgrade for any car, more air, better cooling.

Great product by ER.
__________________

NYBMWCCA Chair
#2Life_
Appreciate 1
      06-12-2016, 05:30 PM   #11
Drpoomanchu
First Lieutenant
Drpoomanchu's Avatar
United_States
76
Rep
328
Posts

Drives: AW M235i
Join Date: Aug 2015
Location: Ohio

iTrader: (0)

Quote:
Originally Posted by bryan_f22 View Post
I upgraded all the piping because i didn't want to have the other hoses bust under pressure like the CP did.

The piping from ER for the FMIC is much bigger than stock. maybe 1/4 to 1/2 inch larger so more air does flow.

i think its a great upgrade for any car, more air, better cooling.

Great product by ER.
just curious how much time did you have in the install of the pre-intercooler piping. how difficult was the install ? debating on just ordering all the piping and installing with the FMIC.
Appreciate 0
      06-12-2016, 07:01 PM   #12
JQuach07
Private
19
Rep
58
Posts

Drives: m235i Alpine White
Join Date: Oct 2015
Location: Portland Oregon

iTrader: (0)

Quote:
Originally Posted by Drpoomanchu
Quote:
Originally Posted by bryan_f22 View Post
I upgraded all the piping because i didn't want to have the other hoses bust under pressure like the CP did.

The piping from ER for the FMIC is much bigger than stock. maybe 1/4 to 1/2 inch larger so more air does flow.

i think its a great upgrade for any car, more air, better cooling.

Great product by ER.
just curious how much time did you have in the install of the pre-intercooler piping. how difficult was the install ? debating on just ordering all the piping and installing with the FMIC.
Very easy to install from the bottom with charge pipe. Turbo piping is pretty freaking hard. If you do turbo piping might as well do DV+ same location
Appreciate 1
      06-12-2016, 09:15 PM   #13
bryan_f22
Because Race Car
bryan_f22's Avatar
235
Rep
595
Posts

Drives: It's white... has 4 tires...
Join Date: Jun 2012
Location: Queens, NY

iTrader: (0)

drop front bumper and intercooler as well as intake.
Everything is right there. I had a shop do it with a lift, took 3 hours.
__________________

NYBMWCCA Chair
#2Life_
Appreciate 0
      06-14-2016, 12:09 PM   #14
quenotte
Private First Class
France
22
Rep
161
Posts

Drives: F22 M235i
Join Date: Oct 2014
Location: France

iTrader: (0)

Installation of Pure high flow inlet pipe should not be difficult.

I've installed Turbo to FMIC and FMIC to TB charge pipes (ER ones), GFB DV+, Wagner Evo2 Comp FMIC and to my mind, pure inlet installation should be a piece of cake compared to DV+ installation...

I'm also interested in installing this Pure Inlet pipe.

But I'm waiting for Victor to manufacture SS spacers for F8x TS install... One thing at a time
Appreciate 0
      06-14-2016, 12:53 PM   #15
Bee Pee
Colonel
United Kingdom
330
Rep
2,339
Posts

Drives: F20 M135i auto EB2
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Send a message via Skype™ to Bee Pee
Quote:
Originally Posted by quenotte View Post
Installation of Pure high flow inlet pipe should not be difficult.
Quenotte,

I hope so but cant find any DIY install instructions/how to anywhere.....

BP
__________________
F20 M135i EB AT with options - what a hoot !
Appreciate 0
      06-14-2016, 01:05 PM   #16
quenotte
Private First Class
France
22
Rep
161
Posts

Drives: F22 M235i
Join Date: Oct 2014
Location: France

iTrader: (0)

I will check with ISTA but to my mind there is only one bolt that maintain it.

Darkiedm4 installed it on his car so he may confirm
Appreciate 0
      06-14-2016, 02:10 PM   #17
Darkiedm4
Major
Darkiedm4's Avatar
Belgium
296
Rep
1,406
Posts

Drives: BMW F20 M135i
Join Date: Jun 2008
Location: Belgium

iTrader: (0)

Garage List
Send a message via Skype™ to Darkiedm4
Inlet pipe is easy. Remove intake pipe that goes to airbox. Remove 1 vacuum? Line that connects to lower inlet part. There is indeed 1 bolt that needs removing on the inlet/compressor housing. Then pull lower inlet out of compressor housing. To install new pure inlet you dont reuse the bolt. The inlet pipe has 2 or 3 o rings that keeps it in place. All can be done from top of the car.
__________________
F20 M135i - F80 M3 (on order)
Appreciate 0
      06-14-2016, 03:10 PM   #18
quenotte
Private First Class
France
22
Rep
161
Posts

Drives: F22 M235i
Join Date: Oct 2014
Location: France

iTrader: (0)

Darkiedm4, are you sure that you don't bolt it with pure inlet?



Bolt fixation is still there

Last edited by quenotte; 06-15-2016 at 08:51 AM.
Appreciate 0
      06-15-2016, 09:39 AM   #19
quenotte
Private First Class
France
22
Rep
161
Posts

Drives: F22 M235i
Join Date: Oct 2014
Location: France

iTrader: (0)

I've ordered Pure high flow inlet from @[Mike@N54Tuning.com](contact:49994)

Hope to receive it soon
Appreciate 0
      06-15-2016, 11:16 AM   #20
Bee Pee
Colonel
United Kingdom
330
Rep
2,339
Posts

Drives: F20 M135i auto EB2
Join Date: Jun 2010
Location: SW London

iTrader: (3)

Send a message via Skype™ to Bee Pee
Post from another forum - seems like its definitely worth doing for EWG cars to take out the restriction at the compressor wheel side of the turbo....

Quote:
Pre inlet:



Post inlet:



PWN/duty cycle can be seen to be lower post Pure inlet fitting. The difference roughly equates to 1psi of boost from what I have seen but I'll look to get a log showing this once I have boost dialled in a bit better .
__________________
F20 M135i EB AT with options - what a hoot !
Appreciate 2
      06-15-2016, 05:25 PM   #21
Daleb
Private
11
Rep
57
Posts

Drives: M135i
Join Date: Jul 2014
Location: Uk

iTrader: (0)

As darkiedm4 says its as simple as that, once you are doing it and see it in front of you it makes sense.

There are 2 bolts in total, one that joins the oem inlet to the turbo compressor housing and another that connects further up to the head (its pictured in the above pure inlet photo). You only reuse the one in the photo. The bolt connecting it to the compressor housing needs to be accessed and removed from below.

The above logs that bee pee posted are mine and that is my initial findings. I have a stage 2 LPFP and TBI so I'll look to push the stock EWG turbo to see what it can do....the inlet will certainly help me!
Appreciate 1
      06-16-2016, 10:03 AM   #22
Darkiedm4
Major
Darkiedm4's Avatar
Belgium
296
Rep
1,406
Posts

Drives: BMW F20 M135i
Join Date: Jun 2008
Location: Belgium

iTrader: (0)

Garage List
Send a message via Skype™ to Darkiedm4
Quote:
Originally Posted by quenotte
Darkiedm4, are you sure that you don't bolt it with pure inlet?



Bolt fixation is still there
I meant the bolt to compressor housing. The above one you reuse indeed.
__________________
F20 M135i - F80 M3 (on order)
Appreciate 1
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
Forum Jump


All times are GMT -4. The time now is 04:37 AM.




2addicts
2addicts
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2016, Jelsoft Enterprises Ltd.
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