E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > JB4 question.



Reply
 
Thread Tools Search this Thread
      04-11-2011, 04:09 PM   #23
Tungtr09
Private
United_States
11
Rep
82
Posts

Drives: 2008 BMW 335xi Space Gray
Join Date: Nov 2009
Location: Renton, WA

iTrader: (0)

So map 5 is safe to run?
Appreciate 0
      04-11-2011, 04:11 PM   #24
rmdvrs
Second Lieutenant
13
Rep
202
Posts

Drives: 2008 335i coupe
Join Date: May 2008
Location: Los Angeles

iTrader: (0)

Quote:
Originally Posted by Tungtr09 View Post
So map 5 is safe to run?
For the most part yes but the best thing to always do is log a few runs and send the logs to Terry and he will tell you how you are looking and what you can get away with.
Appreciate 0
      04-11-2011, 04:19 PM   #25
Tungtr09
Private
United_States
11
Rep
82
Posts

Drives: 2008 BMW 335xi Space Gray
Join Date: Nov 2009
Location: Renton, WA

iTrader: (0)

Quote:
Originally Posted by rmdvrs View Post
Quote:
Originally Posted by Tungtr09 View Post
So map 5 is safe to run?
For the most part yes but the best thing to always do is log a few runs and send the logs to Terry and he will tell you how you are looking and what you can get away with.
K thanks
Appreciate 0
      04-11-2011, 04:21 PM   #26
Litos
Banned
United_States
222
Rep
2,991
Posts

Drives: 2012 Challenger RT Junk
Join Date: Dec 2010
Location: Houston/Pearland

iTrader: (1)

Map 5 may leave a bit of power on the table.

run Map 5 and then log it

run Map 2 and then log it

see which one makes more safe power.....
Appreciate 0
      04-11-2011, 04:24 PM   #27
kpxshorty
Captain
36
Rep
662
Posts

Drives: 2008 E90 335i
Join Date: May 2007
Location: Torrance

iTrader: (7)

Quote:
Originally Posted by ccbad View Post
I've had the JB3/JB4 for almost 2 years on my car and loved every minute of it. Had no engine problems what so ever and my car is my daily driver. However, I was only running the lower maps (map 5 on JB3 and map 1 on JB4) since I only have dci and exhaust.
i almost have same set up, dci and exhaust.
how about map5(jb4)???
Appreciate 0
      04-11-2011, 07:59 PM   #28
Naptime
#Hashtag
Naptime's Avatar
10
Rep
245
Posts

Drives: around in circles
Join Date: Jan 2011
Location: South Texas

iTrader: (1)

I run map 5 with DCI, DP and aftermarket charge pipe. I've had no issues and the car pulls hard.
Appreciate 0
      04-11-2011, 11:20 PM   #29
Tungtr09
Private
United_States
11
Rep
82
Posts

Drives: 2008 BMW 335xi Space Gray
Join Date: Nov 2009
Location: Renton, WA

iTrader: (0)

Do I need a oil cooler?
Appreciate 0
      04-12-2011, 11:14 AM   #30
bigdaddycane
I even mod my cereal
bigdaddycane's Avatar
268
Rep
3,481
Posts

Drives: 11 ZCP DCT M3 14 328d 21 GT4
Join Date: Aug 2009
Location: Northern Va

iTrader: (53)

Garage List
Litos,

How are you liking the COBB compared to the JB4?
__________________
2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins
2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads
2021 718 Cayman GT4 - Fire extinguiser, Neodyme GT3 Wheel Color
Appreciate 0
      04-12-2011, 11:37 AM   #31
Litos
Banned
United_States
222
Rep
2,991
Posts

Drives: 2012 Challenger RT Junk
Join Date: Dec 2010
Location: Houston/Pearland

iTrader: (1)

Quote:
Originally Posted by bigdaddycane View Post
Litos,

How are you liking the COBB compared to the JB4?
for the two days that i drove it, it feels slightly different during normal driving conditions.

the boost comes on a hair quicker as if it's a bit more sensitive to throttle, but it doesn't spike up like some others have reported.

under WOT the 2.5-3psi increase is definitely noticeable.

my wife drives the 335 because she doesn't wanna put $70 of gas into the SRT8 and only drive it 290 miles
Appreciate 0
      04-12-2011, 11:39 AM   #32
bigdaddycane
I even mod my cereal
bigdaddycane's Avatar
268
Rep
3,481
Posts

Drives: 11 ZCP DCT M3 14 328d 21 GT4
Join Date: Aug 2009
Location: Northern Va

iTrader: (53)

Garage List
I may go to the COBB but only after they come out with Stage II and/or the APR is totally ironed out.
__________________
2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins
2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads
2021 718 Cayman GT4 - Fire extinguiser, Neodyme GT3 Wheel Color
Appreciate 0
      04-12-2011, 11:42 AM   #33
Litos
Banned
United_States
222
Rep
2,991
Posts

Drives: 2012 Challenger RT Junk
Join Date: Dec 2010
Location: Houston/Pearland

iTrader: (1)

Cobb is a great product no doubt.

i didn't need the Stage 2 tro make my decision, and even when they release it, i won't need it because i'm keeping my stock exhaust HAHA !!!!

the one thing that made me get the Cobb was the immaculate A/Fr's. 12.5's pretty much all the way across the board - i was stunned.
Appreciate 0
      04-12-2011, 12:06 PM   #34
Slops
Major General
Slops's Avatar
South Africa
190
Rep
5,417
Posts

Drives: 2005 C55 AMG
Join Date: Jan 2011
Location: Oxford

iTrader: (2)

Nice Carlos, when did you get the Cobb?
Appreciate 0
      04-12-2011, 12:11 PM   #35
Mike@N54Tuning.com
Joint Chiefs of Staff
Canada
5044
Rep
116,174
Posts

Drives: 2007 335i, 2015 M3
Join Date: Dec 2008
Location: N54tuning.com

iTrader: (89)

Quote:
Originally Posted by Litos View Post
Map 5 may leave a bit of power on the table.

run Map 5 and then log it

run Map 2 and then log it

see which one makes more safe power.....
Good advice

Mike
Appreciate 0
      04-12-2011, 12:52 PM   #36
kpxshorty
Captain
36
Rep
662
Posts

Drives: 2008 E90 335i
Join Date: May 2007
Location: Torrance

iTrader: (7)

is it safe, if i change map, while driving???
Appreciate 0
      04-12-2011, 01:15 PM   #37
bigdaddycane
I even mod my cereal
bigdaddycane's Avatar
268
Rep
3,481
Posts

Drives: 11 ZCP DCT M3 14 328d 21 GT4
Join Date: Aug 2009
Location: Northern Va

iTrader: (53)

Garage List
Quote:
was the immaculate A/Fr's. 12.5's pretty much all the way across the board
there's a lot to be said for that....
__________________
2011 Mineral White M3 ZCP - Opticoat, Ventureshield, some CF, B&B exhaust, AFE Intake Vorsteiner VFF 101s Ohlins
2014 Mineral White 328d Xdrive Wagon - Opticoat, Ventureshield, B8s, H&R, Apex SM-10s Hawk Pads
2021 718 Cayman GT4 - Fire extinguiser, Neodyme GT3 Wheel Color
Appreciate 0
      04-12-2011, 02:13 PM   #38
Litos
Banned
United_States
222
Rep
2,991
Posts

Drives: 2012 Challenger RT Junk
Join Date: Dec 2010
Location: Houston/Pearland

iTrader: (1)

Quote:
Originally Posted by bigdaddycane View Post
there's a lot to be said for that....
yeah, check out the A/F's at the bottom.




Appreciate 0
      04-13-2011, 02:48 AM   #39
Tungtr09
Private
United_States
11
Rep
82
Posts

Drives: 2008 BMW 335xi Space Gray
Join Date: Nov 2009
Location: Renton, WA

iTrader: (0)

Stupid question but is the a instruction guide to how to change modes and to turn the boosts gauge on?
Appreciate 0
      04-13-2011, 03:07 AM   #40
skinrock
Agent Smith
skinrock's Avatar
276
Rep
3,344
Posts

Drives: 2016 i8
Join Date: Jan 2011
Location: The Matrix

iTrader: (9)

Garage List
2016 BMW i8  [10.00]
Quote:
Originally Posted by kpxshorty View Post
is it safe, if i change map, while driving???
You can do it, but it's probably not safe, you should be focused on the road Just do everyone a favor and pull over for 10 seconds.

Quote:
Originally Posted by Tungtr09 View Post
Stupid question but is the a instruction guide to how to change modes and to turn the boosts gauge on?
http://www.n54tech.com/forums/showthread.php?t=10605
__________________
The i8 needs a V8 amirite?
Appreciate 0
      04-13-2011, 12:23 PM   #41
kpxshorty
Captain
36
Rep
662
Posts

Drives: 2008 E90 335i
Join Date: May 2007
Location: Torrance

iTrader: (7)

Quote:
Originally Posted by skinrock View Post
You can do it, but it's probably not safe, you should be focused on the road Just do everyone a favor and pull over for 10 seconds.



http://www.n54tech.com/forums/showthread.php?t=10605
+1 thx!
Appreciate 0
      04-13-2011, 01:47 PM   #42
Tungtr09
Private
United_States
11
Rep
82
Posts

Drives: 2008 BMW 335xi Space Gray
Join Date: Nov 2009
Location: Renton, WA

iTrader: (0)

So I turned to boosts gauge on and it only shows that I'm getting alittle under 10 psi most of the time. Shouldn't it be higher at high rpm?
Appreciate 0
      04-13-2011, 01:57 PM   #43
indy99gpgt
Private
13
Rep
98
Posts

Drives: 2008 335i BSM coupe
Join Date: Jan 2011
Location: Indianapolis

iTrader: (0)

Quote:
Originally Posted by Tungtr09 View Post
So I turned to boosts gauge on and it only shows that I'm getting alittle under 10 psi most of the time. Shouldn't it be higher at high rpm?
Yes, unless you are on stock map (map 0). If you are on map on2 you should see close to 13 and 14.5 if you are on map 2. Its most likely a boost leak but we wont know unless you scan the car with the jb4 usb cable. I had an AA bov and charge pipe and i could never get it to seal all the way. I put my stock CP back on with stock DV's and my boost is back at target again. the only way to test is to put the original charge pipe back on.
__________________
2008 BSM 335i coupe- Sport.Premium.Dakota Sadel.jb4.dci.meth
1999 Pontiac Grand Prix-10.5 PSI.PRJ LL CAM.Supporting Mods

Appreciate 0
      04-13-2011, 02:07 PM   #44
Tungtr09
Private
United_States
11
Rep
82
Posts

Drives: 2008 BMW 335xi Space Gray
Join Date: Nov 2009
Location: Renton, WA

iTrader: (0)

Quote:
Originally Posted by indy99gpgt View Post
Quote:
Originally Posted by Tungtr09 View Post
So I turned to boosts gauge on and it only shows that I'm getting alittle under 10 psi most of the time. Shouldn't it be higher at high rpm?
Yes, unless you are on stock map (map 0). If you are on map on2 you should see close to 13 and 14.5 if you are on map 2. Its most likely a boost leak but we wont know unless you scan the car with the jb4 usb cable. I had an AA bov and charge pipe and i could never get it to seal all the way. I put my stock CP back on with stock DV's and my boost is back at target again. the only way to test is to put the original charge pipe back on.
I'm on map 5 like everyone here tells me to do. Is there any other way to know besides putting the old charge pipe on? I kinda broke a piece of it when I installed my bov. And it the a way to fix? I kinda feel like it's leaking cause the spot that the charge pipe enters the engine is not that tight.
Appreciate 0
Reply

Bookmarks


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 06:00 PM.




e90post
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