E90Post
 


Alpine HID
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N55 Turbo Engine Tuning and Exhaust Modifications - 335i Tuning > 335i Stock + JB4 = Airy?



Reply
 
Thread Tools Search this Thread
      03-06-2012, 03:39 PM   #1
ronny214
New BMW Owner
 
ronny214's Avatar
 
Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

Posts: 349
iTrader: (0)

Garage List
335i Stock + JB4 = Airy?

So I recently put the JB4 Stage 1 on my 335i which is otherwise completely stock. I can say that when I really just hammer it that there seems to be a little more power/kick under WOT. However, I find that I'm missing that throw me to the back of my seat feeling that I had with the stock tune...or maybe I'm just looking for it now and it isn't there? Someone said that it could be my power curve smoothing out some from the tune, and thus I have a smoother climb in power as opposed to that wham! power on the stock map?

Regardless of that it sometimes feels, especially on surface streets, that when i get on the gas that it is a bit....airy? Almost like the power just isn't there? It is hard to describe the feeling. This is when I'm under about half-open throttle, or if I'm slowly building up speed as opposed to just pushing the pedal to the floor.

I do have the Stage 2 in the mail, so maybe that will fix it? If not, maybe I can take a data log and see if there is an issue?
ronny214 is offline   United_States
0
Reply With Quote
      03-06-2012, 03:47 PM   #2
CPWINCH
Brigadier General
 
CPWINCH's Avatar
 
Drives: 2011 335i m-sport
Join Date: May 2010
Location: Los Angeles

Posts: 3,457
iTrader: (5)

how much are you boosting??
__________________
Follow my BMW instagram @BmodificationW!! Let me know you are from bimmerpost and i'll follow back
CPWINCH is offline   United_States
0
Reply With Quote
      03-06-2012, 04:04 PM   #3
ronny214
New BMW Owner
 
ronny214's Avatar
 
Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

Posts: 349
iTrader: (0)

Garage List
Quote:
Originally Posted by CPWINCH View Post
how much are you boosting??
Not sure. I'm running the Stage 1 so it doesn't have the in-dash boost gauge. I'm guessing whatever the Stage 1 sets to for a stock car.
ronny214 is offline   United_States
0
Reply With Quote
      03-06-2012, 04:06 PM   #4
gustnyc
First Lieutenant
 
gustnyc's Avatar
 
Drives: 2011 E90 BSM 335 xdrive
Join Date: Aug 2009
Location: nyc

Posts: 380
iTrader: (6)

Get downpipes.. I bet you'll delete this thread.. Lol
__________________
2011 BSM E90 335 xdrive, msport,performance package,nav,premium,cold weather,ets cp,bms intake,custom exhaust,jb4 stage 2

R.I.P. 09 BSM E90 335 xdrive =*(
gustnyc is offline   United_States
0
Reply With Quote
      03-06-2012, 04:20 PM   #5
ronny214
New BMW Owner
 
ronny214's Avatar
 
Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

Posts: 349
iTrader: (0)

Garage List
Quote:
Originally Posted by gustnyc View Post
Get downpipes.. I bet you'll delete this thread.. Lol
Yah, already discussing this in another thread. I want catless, but I live in Texas. So until they come up with a DP fix that will spoof the sensor reading over the OBDII port, I can't pass inspection with catless.
ronny214 is offline   United_States
0
Reply With Quote
      03-06-2012, 05:22 PM   #6
gustnyc
First Lieutenant
 
gustnyc's Avatar
 
Drives: 2011 E90 BSM 335 xdrive
Join Date: Aug 2009
Location: nyc

Posts: 380
iTrader: (6)

Get a cantool and leave it plugged in.. That will get rid of codes and cel.. Emissions is tough cause we have them here too but there's way to go around that..
__________________
2011 BSM E90 335 xdrive, msport,performance package,nav,premium,cold weather,ets cp,bms intake,custom exhaust,jb4 stage 2

R.I.P. 09 BSM E90 335 xdrive =*(
gustnyc is offline   United_States
0
Reply With Quote
      03-06-2012, 05:25 PM   #7
ronny214
New BMW Owner
 
ronny214's Avatar
 
Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

Posts: 349
iTrader: (0)

Garage List
Quote:
Originally Posted by gustnyc View Post
Get a cantool and leave it plugged in.. That will get rid of codes and cel.. Emissions is tough cause we have them here too but there's way to go around that..
Well once I get the Stage 2 I won't be to worried about codes/CELs because it can clear them. But for our emission test, the sensors have to read as Ready instead of Not Ready or Failed. And we have to have 2 out of 3 read as Ready to pass.
__________________
2011 E90 335i LCI // Jet Black / Beige Dakota Leather / Double-VANOS/ Premium / Sport
Mods // Cobb Stage 2+ Aggressive / ER Charge Pipe / AR 4" Down Pipe / AA FMIC / LUX H8 v3 Angel Eyes / HPB Interior LEDs
Other // Shell Rotella T6 5w40 / 18" APEX EC-7 Wheels (9" Front|9.5" Rear)
ronny214 is offline   United_States
0
Reply With Quote
      03-06-2012, 06:52 PM   #8
CJ421
Brigadier General
 
CJ421's Avatar
 
Drives: 2011 E92 335i
Join Date: Feb 2011
Location: PA

Posts: 3,200
iTrader: (1)

Garage List
2011 BMW 335i  [4.66]
There's no way around the emissions test with a catless DP unless you either
a) fool the sensors (see "dp fix" for N54 ... doesn't commercially exist for N55 yet)
b) uninstall it, put stock back in and drive around for the requisite amount of time

ronny214 is 100% spot on about clearing the CEL ... that will not help with inspection. Just gets rid of that annoying dash light.
__________________
2011 BMW E92 335i, 6MT, Le Mans blue - Quaife LSD, JRZ RS Pro, JRZ camber plates, Eibach ERS, full M3 susp, custom toe arms, Powergrid end-links, SS brake lines, brake ducting, Michelin PSS, UUC SSK, ETS FMIC, ER CP, Perf. Exhaust, VAC RSIK, Sparcos; work by VAC Motorsports in Philadelphia
CJ421 is offline   United_States
0
Reply With Quote
      03-06-2012, 08:21 PM   #9
Swerd430
Private
 
Drives: 2014 F30 335XI M Sport
Join Date: Feb 2011
Location: CT

Posts: 79
iTrader: (1)

Send a message via AIM to Swerd430
Quote:
Originally Posted by ronny214 View Post
So I recently put the JB4 Stage 1 on my 335i which is otherwise completely stock. I can say that when I really just hammer it that there seems to be a little more power/kick under WOT. However, I find that I'm missing that throw me to the back of my seat feeling that I had with the stock tune...or maybe I'm just looking for it now and it isn't there? Someone said that it could be my power curve smoothing out some from the tune, and thus I have a smoother climb in power as opposed to that wham! power on the stock map?

Regardless of that it sometimes feels, especially on surface streets, that when i get on the gas that it is a bit....airy? Almost like the power just isn't there? It is hard to describe the feeling. This is when I'm under about half-open throttle, or if I'm slowly building up speed as opposed to just pushing the pedal to the floor.

I do have the Stage 2 in the mail, so maybe that will fix it? If not, maybe I can take a data log and see if there is an issue?

I have the same issue. Especially after a fast shift and back on the throttle. It feels like sometimes the tune is engaged, other times it feels like its not. I am going to do some logging this weekend and see if there is any evidence there. Let me know if you figure anything out in the meantime.
Swerd430 is offline  
0
Reply With Quote
      03-06-2012, 08:35 PM   #10
GmoBmw
Captain
 
GmoBmw's Avatar
 
Drives: 2007 335i
Join Date: Dec 2011
Location: California

Posts: 645
iTrader: (8)

Solutions:

A) Trade in your N55 for an N54.
B) Replace your 335I With a M3/5/6
or
C) Sell your house and Buy a Ferrari F12 and Live in it.
__________________
2007 BMW 335I- JB4 G5,DCI,VRSF DPs,NT555r Drag Radials Daily Driver
GmoBmw is offline  
0
Reply With Quote
      03-06-2012, 10:09 PM   #11
ronny214
New BMW Owner
 
ronny214's Avatar
 
Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

Posts: 349
iTrader: (0)

Garage List
Quote:
Originally Posted by Swerd430 View Post
I have the same issue. Especially after a fast shift and back on the throttle. It feels like sometimes the tune is engaged, other times it feels like its not. I am going to do some logging this weekend and see if there is any evidence there. Let me know if you figure anything out in the meantime.
Terrysaid for the n55 there is major turbo lag and that the stage2 should fix it. So ill see in a couple days.
__________________
2011 E90 335i LCI // Jet Black / Beige Dakota Leather / Double-VANOS/ Premium / Sport
Mods // Cobb Stage 2+ Aggressive / ER Charge Pipe / AR 4" Down Pipe / AA FMIC / LUX H8 v3 Angel Eyes / HPB Interior LEDs
Other // Shell Rotella T6 5w40 / 18" APEX EC-7 Wheels (9" Front|9.5" Rear)
ronny214 is offline   United_States
0
Reply With Quote
      03-06-2012, 10:24 PM   #12
f3d
Private
 
Drives: 2011 e92 335xi
Join Date: Nov 2011
Location: NYC

Posts: 56
iTrader: (1)

I'm running the same setup you have (orig. poster) but the stg 2 JB4.... had the car on a mustang dyno last weekend (which will typically show way lower numbers than other dyno rigs)...

here's my output....



Run 2 is a tunes n54 and not my setup. Only runs 1 & 3 are mine.
f3d is offline  
0
Reply With Quote
      03-06-2012, 10:33 PM   #13
ziominix
Private First Class
 
Drives: 2011 335i xDrive Coupe
Join Date: Nov 2009
Location: WV

Posts: 161
iTrader: (0)

Yeah Im running stage 2 and I don't have any of these issues. Good luck!
ziominix is offline  
0
Reply With Quote
      03-07-2012, 12:14 AM   #14
CJ421
Brigadier General
 
CJ421's Avatar
 
Drives: 2011 E92 335i
Join Date: Feb 2011
Location: PA

Posts: 3,200
iTrader: (1)

Garage List
2011 BMW 335i  [4.66]
OP, I just realized you only had the Stage I installed. Stage II is MUCH MUCH better.

I had the Stage I installed for about five months, just recently removed and went back to stock (I have Stage II in the mail as well). It didn't do much for me. It gives a bit more pull at the top end (4k+) but down low ... unnoticeable. I felt it made the car feel sluggish accelerating from a stop (might have just been a relative thing since the top end was stronger). The stock tune is linear, predictable, and overall more driveable.

I had the opportunity to drive a Stage II-equipped N55 and it pulls like a mofo all the way through the rev band. Definitely worth the upgrade. Either stay with stock or go Stage II.
__________________
2011 BMW E92 335i, 6MT, Le Mans blue - Quaife LSD, JRZ RS Pro, JRZ camber plates, Eibach ERS, full M3 susp, custom toe arms, Powergrid end-links, SS brake lines, brake ducting, Michelin PSS, UUC SSK, ETS FMIC, ER CP, Perf. Exhaust, VAC RSIK, Sparcos; work by VAC Motorsports in Philadelphia
CJ421 is offline   United_States
0
Reply With Quote
      03-07-2012, 12:32 AM   #15
BadassBeamer
Private
 
Drives: 2013 F30 335i M-Sport
Join Date: Oct 2011
Location: Cali

Posts: 52
iTrader: (0)

I have a stage 1 jb4 on my n55 and i don't have that problem at all. Whether if i slowly feed it gas or just punch it all the way it pulls hard. Big difference from stock and i don't really have turbo lag at all.
BadassBeamer is offline   United_States
0
Reply With Quote
      03-07-2012, 01:24 AM   #16
Jdub679
Lieutenant
 
Drives: 2011 BMW 335i coupe
Join Date: Jan 2011
Location: Irvine, CA

Posts: 449
iTrader: (1)

I have the Stage 1 still. I know what you mean, OP. I hear this is resolved with Stage 2.

I am dying to get my DME updated so that I can upgrade. If you can upgrade to Stage 2, do it.
Jdub679 is offline  
0
Reply With Quote
      03-07-2012, 07:43 AM   #17
badblkX6
Captain
 
Drives: 2014 X6 35i
Join Date: Sep 2011
Location: South Jersey

Posts: 702
iTrader: (8)

Garage List
2014 BMW X6  [0.00]
I ordered Stage 1 and Stage 2 at the same time. Stage 2 wasn't sent with Stage 1, so I ran Stage 1 for about two weeks until Stage 2 came in and I had time to get it installed.

I noticed what you have posted OP with Stage 1. When you get Stage 2, that airy feeling will go right away. I also put in the BMS catless downpipe. I would highly recommend it.

When are you due for inspection? I would put the catless downpipe in and enjoy it then swap it out for stock to pass inspection.

Can you find any local shops that can maybe slap an inspection sticker on there for you for a minimal fee and keep the catless downpipe in when the time comes?

Good luck!
badblkX6 is offline   United_States
0
Reply With Quote
      03-07-2012, 09:20 AM   #18
Sara504
Lieutenant General
 
Sara504's Avatar
 
Drives: 2013 335is
Join Date: Aug 2007
Location: Newport Beach, CA

Posts: 17,655
iTrader: (6)

Thats because you dont have stage 2!
__________________

2013 335is-Current
2011 335i -Sold 4/13 2006 325i-Sold 7/11
Sara504 is offline   United_States
0
Reply With Quote
      03-07-2012, 09:21 AM   #19
Sara504
Lieutenant General
 
Sara504's Avatar
 
Drives: 2013 335is
Join Date: Aug 2007
Location: Newport Beach, CA

Posts: 17,655
iTrader: (6)

Quote:
Originally Posted by badblk335i View Post
I ordered Stage 1 and Stage 2 at the same time. Stage 2 wasn't sent with Stage 1, so I ran Stage 1 for about two weeks until Stage 2 came in and I had time to get it installed.

I noticed what you have posted OP with Stage 1. When you get Stage 2, that airy feeling will go right away. I also put in the BMS catless downpipe. I would highly recommend it.

When are you due for inspection? I would put the catless downpipe in and enjoy it then swap it out for stock to pass inspection.

Can you find any local shops that can maybe slap an inspection sticker on there for you for a minimal fee and keep the catless downpipe in when the time comes?

Good luck!
What do you mean it didnt come together? Did you order them from different vendors or something? Im a little confused.
__________________

2013 335is-Current
2011 335i -Sold 4/13 2006 325i-Sold 7/11
Sara504 is offline   United_States
0
Reply With Quote
      03-07-2012, 10:39 AM   #20
Andrew@ActiveAutowerke
BimmerPost Supporting Vendor

 
Andrew@ActiveAutowerke's Avatar
 
Drives: 2014 435I M-sport
Join Date: Dec 2011
Location: Miami Fl

Posts: 3,215
iTrader: (5)

Stage 2 is just a new box and a few wires including can.
Andrew@ActiveAutowerke is offline  
0
Reply With Quote
      03-07-2012, 11:14 AM   #21
ronny214
New BMW Owner
 
ronny214's Avatar
 
Drives: 2011 BMW 335i (e90) Black/Tan
Join Date: Oct 2011
Location: Dallas, TX

Posts: 349
iTrader: (0)

Garage List
Quote:
Originally Posted by badblk335i View Post
I ordered Stage 1 and Stage 2 at the same time. Stage 2 wasn't sent with Stage 1, so I ran Stage 1 for about two weeks until Stage 2 came in and I had time to get it installed.

I noticed what you have posted OP with Stage 1. When you get Stage 2, that airy feeling will go right away. I also put in the BMS catless downpipe. I would highly recommend it.

When are you due for inspection? I would put the catless downpipe in and enjoy it then swap it out for stock to pass inspection.

Can you find any local shops that can maybe slap an inspection sticker on there for you for a minimal fee and keep the catless downpipe in when the time comes?

Good luck!
Inspection is due in august. I may rip the sticker off, though, because the corner is peeling and my OCD is kicking in on it and just go get my inspection early...I wonder how much inspections run? I've never had to get one before. This is my first car registered with Texas plates.

Anyways, I wish I could find a backwater shop who would slap it on for a few extra bucks. HAHA. But in all honesty if I can do my inspection this month and it last for a year, surely by the time the next inspection comes around someone will have cracked the ECU on the N55 and come out with a DP fix like the N54 has.

Decisions...decisions...
__________________
2011 E90 335i LCI // Jet Black / Beige Dakota Leather / Double-VANOS/ Premium / Sport
Mods // Cobb Stage 2+ Aggressive / ER Charge Pipe / AR 4" Down Pipe / AA FMIC / LUX H8 v3 Angel Eyes / HPB Interior LEDs
Other // Shell Rotella T6 5w40 / 18" APEX EC-7 Wheels (9" Front|9.5" Rear)
ronny214 is offline   United_States
0
Reply With Quote
      03-07-2012, 12:04 PM   #22
sA x sKy
Sameet
 
sA x sKy's Avatar
 
Drives: One Slow Matte Black N55
Join Date: Apr 2010
Location: Long Island, New York

Posts: 1,738
iTrader: (2)

Quote:
Originally Posted by ronny214 View Post
Inspection is due in august. I may rip the sticker off, though, because the corner is peeling and my OCD is kicking in on it and just go get my inspection early...I wonder how much inspections run? I've never had to get one before. This is my first car registered with Texas plates.

Anyways, I wish I could find a backwater shop who would slap it on for a few extra bucks. HAHA. But in all honesty if I can do my inspection this month and it last for a year, surely by the time the next inspection comes around someone will have cracked the ECU on the N55 and come out with a DP fix like the N54 has.

Decisions...decisions...
Inspection cost $10 over here.
__________________
| KW V3 | Vanguard V2 Exhaust | JB4 | AR DP | Custom Stainless Steel DO Meth Setup | BMS CP | BMS Intake | M-Sport | ZCP M3 Spoiler | Gunsmoke Euro LCI Tails |


PLASTIDIPPPED Matte Black E92 Photoshoot
sA x sKy is offline   Bangladesh
0
Reply With Quote
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 -5. The time now is 11:26 PM.




e90post
Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, 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