E90Post
 


 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > jb4 iso



Reply
 
Thread Tools Search this Thread
      01-04-2013, 02:21 PM   #1
gzim335
Lieutenant
 
gzim335's Avatar
 
Drives: 07 e90n54-08 zx10r-lci328ix
Join Date: Feb 2011
Location: staten island ny

Posts: 581
iTrader: (4)

Garage List
2007/1 e90 335i  [1.00]
who else thinks that jb4 g5 iso is killing our mpg lol,tried to stay under 3k rpm and still only got 220miles on a full tank.
__________________
2007/1 e90 335i jet black

jb4 g5 iso/race flash--stet cai/scoops--cpe dp's corsa race--cpe ic--aa cp/bov--meth--kw v2/stoptech bbk--m3 bits,m3 fsb,wavetrack lsd--lci conversion
gzim335 is offline   Montenegro
0
Reply With Quote
      01-04-2013, 02:30 PM   #2
Dmoney0823
New Member
 
Drives: 2011 BMW 335xi Sedan
Join Date: Nov 2010
Location: CT

Posts: 20
iTrader: (0)

I have not done the JB4 update and my gas mileage is still shit. Full bolt as well.
Dmoney0823 is offline  
0
Reply With Quote
      01-04-2013, 02:41 PM   #3
gzim335
Lieutenant
 
gzim335's Avatar
 
Drives: 07 e90n54-08 zx10r-lci328ix
Join Date: Feb 2011
Location: staten island ny

Posts: 581
iTrader: (4)

Garage List
2007/1 e90 335i  [1.00]
Quote:
Originally Posted by Dmoney0823
I have not done the JB4 update and my gas mileage is still shit. Full bolt as well.
before iso upgrade it wasnt this bad but now my car does 12 mpg lol and im not even abusing it
__________________
2007/1 e90 335i jet black

jb4 g5 iso/race flash--stet cai/scoops--cpe dp's corsa race--cpe ic--aa cp/bov--meth--kw v2/stoptech bbk--m3 bits,m3 fsb,wavetrack lsd--lci conversion
gzim335 is offline   Montenegro
0
Reply With Quote
      01-04-2013, 06:17 PM   #4
spool twice
Rainbow Racer
 
spool twice's Avatar
 
Drives: S65B40
Join Date: Sep 2010
Location: Sarasota, FL

Posts: 1,277
iTrader: (7)

run ISO 11C firmware with a wastegate position value at "0" and you'll see up to 37mpg on the OBC w/ 93octane steady state flat road at an indicated 75mph (no joke)
__________________
'15 IS350 F-sport Ultra White/Rioja Red
'09 E90 M3 7-DCT Interlagos Blue/Novillo Silver
[MS Pullies|K&N drop-in|Test Pipes |Evolve Stage II tune|Evolve Servotronic Map|Evolve M3 GTS-DCT file]
Now gone
spool twice is offline   United_States
0
Reply With Quote
      01-04-2013, 06:21 PM   #5
Mike@N54Tuning.com
BimmerPost Supporting Vendor

 
Drives: 07335i
Join Date: Dec 2008
Location: Earth

Posts: 14,706
iTrader: (87)

Maybe you have a heavy foot playing with your new toy.

Mike
__________________
LOWEST PRICE GURANTEE ON ALL PRODUCTS - www.n54tuning.com - Email; Mike@n54tuning.com
NEW PERFORMANCE LINE N54 DOWNPIPES & M3/M4 & F30 ER DOWNPIPES NOW IN STOCK - ER N54 CHARPE PIPE SPECIALS - NEW JB4 G5 ISO for N54 and F30 N55 ON SALE
Mike@N54Tuning.com is offline   Canada
0
Reply With Quote
      01-04-2013, 06:26 PM   #6
boostaholic786
Lieutenant
 
boostaholic786's Avatar
 
Drives: E92 JB4 G5 ISO RB's FBO+40%E85
Join Date: Dec 2011
Location: irving tx

Posts: 558
iTrader: (0)

Im not having any issues running the G5 ISO whatsoever with gas mileage. I run a 40% E85 mix/93 and still manage 17-18mpg and I'm FBO+RB's
__________________
A/W E92 335i M-sport with JB4 G5 ISO/ E40 WEDGE PERFORMANCE BACKEND FLASH, Alpina TCU flash for AT/Switch-tronic +AR Downpipes, Stett gen 1 intake, Wagner-Tuning FMIC+RB Turbo setup/ RB PCV Valve+ Akro exhaust+60% E85/93 mix,+ HRE P40S wheels, KW coilovers, M3 sways,+BMW performance CF Mirrors, BMW Performance CF deck lid spoiler,+ CF interior trim, p3 vent boost gauge,+ LUX angel eyes (11.73@119mph on street tires) NO METH!
boostaholic786 is offline  
0
Reply With Quote
      01-04-2013, 07:00 PM   #7
BEAR-AvHistory
2014 435M-Sport/MPPK
 
BEAR-AvHistory's Avatar
 
Drives: 2014 435M-Sport MPPK
Join Date: Jun 2011
Location: NC - USA

Posts: 2,247
iTrader: (0)

20-21mpg no change from pre ISO
__________________
Kevin

2014 435M-Sport MPPK - 2013 135is Cab 6MT - 2009 V-Star - 2009 Ford Expedition EL 4X4 - 2003 Xterra 4X4 - 1998 Ranger 4X4 - FFR Cobra MK-IV work in progress
BEAR-AvHistory is offline  
0
Reply With Quote
      01-04-2013, 11:14 PM   #8
themyst
Major General
 
themyst's Avatar
 
Drives: E90 335i LCI
Join Date: Feb 2009
Location: NYC

Posts: 6,602
iTrader: (8)

Send a message via AIM to themyst
Quote:
Originally Posted by gzim335 View Post
before iso upgrade it wasnt this bad but now my car does 12 mpg lol and im not even abusing it
You do understand winter blend gas gets worse gas mileage than summer blend, right?

Other than that, ISO is extremely boost happy. Set wastegate position to 0 and future use A = 50 and you'll see your car get better gas mileage heh.
__________________
E90 LCI N54 6AT
themyst is offline   South Korea
0
Reply With Quote
      01-05-2013, 03:05 AM   #9
gzim335
Lieutenant
 
gzim335's Avatar
 
Drives: 07 e90n54-08 zx10r-lci328ix
Join Date: Feb 2011
Location: staten island ny

Posts: 581
iTrader: (4)

Garage List
2007/1 e90 335i  [1.00]
Quote:
Originally Posted by themyst
Quote:
Originally Posted by gzim335 View Post
before iso upgrade it wasnt this bad but now my car does 12 mpg lol and im not even abusing it
You do understand winter blend gas gets worse gas mileage than summer blend, right?

Other than that, ISO is extremely boost happy. Set wastegate position to 0 and future use A = 50 and you'll see your car get better gas mileage heh.
i dont want it to get too laggy lol,but if thats what it takes
__________________
2007/1 e90 335i jet black

jb4 g5 iso/race flash--stet cai/scoops--cpe dp's corsa race--cpe ic--aa cp/bov--meth--kw v2/stoptech bbk--m3 bits,m3 fsb,wavetrack lsd--lci conversion
gzim335 is offline   Montenegro
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 05:37 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