E90Post
 


Extreme Power House
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Is the jb4 completely safe?



Reply
 
Thread Tools Search this Thread
      08-02-2013, 08:19 PM   #1
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Is the jb4 completely safe?

Looking for some advice from ppl that have done the tune...
Is it completely safe/harm free?
I want to avoid running into problems, I've heard a lot of great reviews about the tune
gazzetta is offline  
0
Reply With Quote
      08-02-2013, 08:22 PM   #2
SoIntoYou
Private First Class
 
Drives: BMW 335i coupe
Join Date: May 2011
Location: Augusta,GA

Posts: 159
iTrader: (0)

safe but dont abuse it.
jb4 iso g5 with stock turbos, tuned since 40k now at 100k no problem except water pump and drive belt which I replaced both. also I suggest adding a trunk mount meth kit for added cooling and cleaning engine internals
SoIntoYou is offline   United_States
0
Reply With Quote
      08-02-2013, 08:33 PM   #3
deathbunny
First Lieutenant
 
Drives: 08 335I
Join Date: May 2013
Location: Vegas

Posts: 362
iTrader: (2)

Quote:
Originally Posted by gazzetta View Post
Looking for some advice from ppl that have done the tune...
Is it completely safe/harm free?
I want to avoid running into problems, I've heard a lot of great reviews about the tune
Of course its not "completely safe", but neither is any other aftermarket tune. How safe is it and how much risk you are willing to accept is what you need to be figuring out.
__________________
"And just one question I might ask yah, and it might sound like A disaster, can you make this thing go faster?"
deathbunny is offline  
0
Reply With Quote
      08-02-2013, 08:47 PM   #4
Myrder
Captain
 
Myrder's Avatar
 
Drives: 2010 E92 335i MSport 6MT LMB
Join Date: Apr 2013
Location: WildWest

Posts: 994
iTrader: (1)

You can pop the charge pipe.
__________________
2010|335i|LMB|E92|6MT|MSport|Logic7|335is Clutch|AE Performance|BMS|Walbro|VRSF 7"|
1992|Pontiac Firebird|Mild 355ci|T56|
2001|Camaro Z28|T56|1/4: 12.9@111 (gone)
-I will look on your treasures, gypsy. Is this understood?-
Myrder is offline   United_States
0
Reply With Quote
      08-02-2013, 08:49 PM   #5
Dan_335
Private First Class
 
Drives: e92 335i
Join Date: Jan 2013
Location: Sydney

Posts: 136
iTrader: (0)

Modifying any car is not 'completely safe' however the Jb4 is a great bit of kit
Dan_335 is offline  
0
Reply With Quote
      08-02-2013, 08:58 PM   #6
Dark_Knight_335
Came to the N55 Darkside
 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ

Posts: 10,304
iTrader: (26)

You're most "safe" aftermarket tunes are the BMW PPK and DINAN. Both match BMW's factory warranty and you can drive into any dealership on the off chance something goes wrong (which are slim to none), and actually have a chance to get support for it. Neither are cheap and they are flash tunes, which essentially means no resale parts (except a few dollars more paid an enthusiast might pay on a private sale for a PPK or DINAN car).
My only problem right now with my DINAN stage 3 is that I MIGHT have lost it when the dealer had to re-program my software to fix a flaky brake sensor, but I am worry free, because I get free re-flashes from any BMW DINAN dealer- for the life of my ownership of the car.
Pay to play.

Last edited by Dark_Knight_335; 08-02-2013 at 09:05 PM.
Dark_Knight_335 is offline   United_States
0
Reply With Quote
      08-02-2013, 09:09 PM   #7
The Cleaner
Thats all you need to know.
 
The Cleaner's Avatar
 
Drives: 2013 335is , 2013 X5
Join Date: Dec 2006
Location: Nor Cal

Posts: 1,122
iTrader: (2)

Send a message via AIM to The Cleaner
The short answer is NO. if they were you would have factory warranty still in play if you use one. We can debate this all day long but the fact remains if you use an aftermarket tune, even Dinan your warranty will be voided and your car flagged as tuned. If the tuners were 100% confident in the tune they would back you up with a warranty.
__________________
- 335is E92 2013 [Sapphire Black/Grey]
- X5 E70 2013 [Sparkling Bronze/Cinnamon]
1981 Delorean number 6489 --- Took Delivery 1.20.88
The Cleaner is offline   United_States
0
Reply With Quote
      08-02-2013, 09:26 PM   #8
Dark_Knight_335
Came to the N55 Darkside
 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ

Posts: 10,304
iTrader: (26)

Quote:
Originally Posted by The Cleaner
The short answer is NO. if they were you would have factory warranty still in play if you use one. We can debate this all day long but the fact remains if you use an aftermarket tune, even Dinan your warranty will be voided and your car flagged as tuned. If the tuners were 100% confident in the tune they would back you up with a warranty.
You might want to look into Dinan a little bit more - I respectfully disagree. PPK is BMW, so we will take them out of the equation.

So far I have gotten three engine /brake related repairs and service bulletins performed free of charge and under warranty by the dealer.

Yes, your car cannot be CPOed, and if something goes wrong with a Dinan flash or part, which is very rare, Dinan and BMW MIGHT have a little pissing match as to who foots the bill- but within the four-year period that you are under warranty, along with the Dinan's own factory matching warranty, you were free and clear sir.
Dark_Knight_335 is offline   United_States
0
Reply With Quote
      08-02-2013, 09:29 PM   #9
Amini77
Brigadier General
 
Amini77's Avatar
 
Drives: SGM E90 330xi
Join Date: Nov 2011
Location: Tarzana, CA

Posts: 4,583
iTrader: (1)

Garage List
2006 330XI  [3.75]
If you had to ask this question then you probably have some doubt. I've seen some people running it without any problems and other times people having horror stories a couple weeks after installing it. By turning up the boost on your car and stressing the turbos out along with everything that has to do with them, obviously it isn't safe.
__________________

instagram: amini77
| KW V1 | LCI rear | 359m Style | Michelin PSS | AA Stage 2 | Gruppe M | Remus | Mtech Rear | M3 Front |
Amini77 is offline   United_States
0
Reply With Quote
      08-02-2013, 09:36 PM   #10
-Wingman-
Banned
 
Drives: 2011 e92 M-Sport
Join Date: Feb 2013
Location: Kansas

Posts: 500
iTrader: (2)

No. But neither is driving on the road. Consider this: at any given moment in which are on a two lane highway or any highway really where there is no dividing barrier in the middle of the road, a driver going opposite to your direction, crossing your path, could easily decide to swerve head on to your car, killing you.

Realistically, that is as likely to happen as finding a fifty dollar bill on the ground. What am I trying to say? The risk is there, but the chances of something catastrophic happening to your car is very slim.
-Wingman- is offline  
0
Reply With Quote
      08-02-2013, 09:43 PM   #11
The Cleaner
Thats all you need to know.
 
The Cleaner's Avatar
 
Drives: 2013 335is , 2013 X5
Join Date: Dec 2006
Location: Nor Cal

Posts: 1,122
iTrader: (2)

Send a message via AIM to The Cleaner
Quote:
Originally Posted by Dark_Knight_335 View Post
You might want to look into Dinan a little bit more - I respectfully disagree. PPK is BMW, so we will take them out of the equation.

So far I have gotten three engine /brake related repairs and service bulletins performed free of charge and under warranty by the dealer.

Yes, your car cannot be CPOed, and if something goes wrong with a Dinan flash or part, which is very rare, Dinan and BMW MIGHT have a little pissing match as to who foots the bill- but within the four-year period that you are under warranty, along with the Dinan's own factory matching warranty, you were free and clear sir.
Dinan Voids BMW warranty Period. Call Dinan and they will tell you that. I respect your opinion but when push comes to shove the car owner is going to pay the price. Any tune outside of BMW will void your warranty on many aspects of your car and most important... the car is flagged by it's VIN as a car to watch to scrutinize. Yes you are free to trust Dinan to pay for whatever their tune might screw up but the question was is JB4 safe/harm free and that answer will always be NO.
__________________
- 335is E92 2013 [Sapphire Black/Grey]
- X5 E70 2013 [Sparkling Bronze/Cinnamon]
1981 Delorean number 6489 --- Took Delivery 1.20.88

Last edited by The Cleaner; 08-02-2013 at 09:59 PM.
The Cleaner is offline   United_States
0
Reply With Quote
      08-02-2013, 10:25 PM   #12
Teemo Panda
*Bimmerpost Plasti Dip Guru*
 
Teemo Panda's Avatar
 
Drives: E53, E46-M3, E70, F25-X3
Join Date: Jun 2011
Location: New Jersey (NJ)

Posts: 1,178
iTrader: (0)

Garage List
2013 BMW X3  [2.83]
any alternation from the stock will have a chance of being not safe, except for minor things.
__________________
Teemo Panda is offline   United_States
0
Reply With Quote
      08-02-2013, 10:25 PM   #13
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Damn, thanks for all the feedback guys. So SAYYYYY something happens to the car and prior to bringing it for warranty repair, I return the flash to stock- would bmw be able to figure out that it may have been flash tuned in order to cause the fault, thus voiding the warranty?
gazzetta is offline  
0
Reply With Quote
      08-02-2013, 10:27 PM   #14
thenewrick
Lieutenant
 
Drives: 2007 E93 335i Black Sapphire
Join Date: Dec 2012
Location: USA

Posts: 586
iTrader: (2)

Basically the best thing to do is buy a car cheap and out of warranty, mod the hell out of it, have a little money saved up to repair it if something goes wrong. You'll still be paying a lot less that way than buying a car in warranty, getting a Dinan tune and nothing breaking.
thenewrick is offline   United_States
0
Reply With Quote
      08-02-2013, 10:33 PM   #15
Dark_Knight_335
Came to the N55 Darkside
 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ

Posts: 10,304
iTrader: (26)

Quote:
Originally Posted by gazzetta
Damn, thanks for all the feedback guys. So SAYYYYY something happens to the car and prior to bringing it for warranty repair, I return the flash to stock- would bmw be able to figure out that it may have been flash tuned in order to cause the fault, thus voiding the warranty?
I do believe the dealer can read shadow codes. JB has the option to clear them I believe.
Dark_Knight_335 is offline   United_States
0
Reply With Quote
      08-02-2013, 10:39 PM   #16
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Well I'm fairly new to the mods. All I have is the bms DCI.
I went to a car show last night and saw another dude with an e93. He advised me to grab the jb4. When I heard it projects 100hp 100tq for $500 I was all for it. Started reading a bit and found some negative stories, got me a little shook lol!
gazzetta is offline  
0
Reply With Quote
      08-02-2013, 10:47 PM   #17
Dark_Knight_335
Came to the N55 Darkside
 
Dark_Knight_335's Avatar
 
Drives: 2011 335 E93 M-Sport
Join Date: May 2010
Location: NY/NJ

Posts: 10,304
iTrader: (26)

It's basically a risk / reward assessment you ultimately have to come to terms with. Good luck deciding.
Dark_Knight_335 is offline   United_States
0
Reply With Quote
      08-02-2013, 10:59 PM   #18
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Quote:
Originally Posted by Dark_Knight_335
It's basically a risk / reward assessment you ultimately have to come to terms with. Good luck deciding.
Thanks for the advice brother!
gazzetta is offline  
0
Reply With Quote
      08-02-2013, 11:53 PM   #19
914kid
Banned
 
914kid's Avatar
 
Drives: E90 335xi
Join Date: Jun 2013
Location: Pelham, NY

Posts: 363
iTrader: (1)

I am in the same boat and I love the way a JB4 335i drives but for the time being I have decided against it. This car is fast already and has been decently reliable I am afraid after getting the tune I will potentially ruin the reliability.

Another less "risky" option to look at is that alpina transmission flash if you have an auto.
914kid is offline  
0
Reply With Quote
      08-03-2013, 12:36 AM   #20
gazzetta
Second Lieutenant
 
Drives: 2008 bmw 335i
Join Date: May 2013
Location: toronto

Posts: 219
iTrader: (0)

Quote:
Originally Posted by 914kid
I am in the same boat and I love the way a JB4 335i drives but for the time being I have decided against it. This car is fast already and has been decently reliable I am afraid after getting the tune I will potentially ruin the reliability.

Another less "risky" option to look at is that alpina transmission flash if you have an auto.
Mine is manual. Indecisive
gazzetta is offline  
0
Reply With Quote
      08-03-2013, 01:22 AM   #21
thenewrick
Lieutenant
 
Drives: 2007 E93 335i Black Sapphire
Join Date: Dec 2012
Location: USA

Posts: 586
iTrader: (2)

Get the jb4 set it to map 5 and forget about it. 70hp/100tq easy peezy
thenewrick is offline   United_States
0
Reply With Quote
      08-03-2013, 09:38 AM   #22
mrvegas
Enlisted Member
 
Drives: 2011 335d
Join Date: Oct 2008
Location: Upper Marlboro, Md.

Posts: 38
iTrader: (0)

I just bought a 2011 335d. Will the Alpina Transmission flash work on my car, a diesel?
mrvegas is offline  
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 05:11 AM.




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