E90Post
 


ECS BMW
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Racing Fuel (100 octane) in 335i



Reply
 
Thread Tools Search this Thread
      01-25-2009, 08:51 PM   #1
PINOY_E90
Second Lieutenant
 
PINOY_E90's Avatar
 
Drives: 2008 E90 335i
Join Date: Dec 2006
Location: Peachtree City, GA

Posts: 211
iTrader: (0)

Send a message via Yahoo to PINOY_E90
Racing Fuel (100 octane) in 335i

Guys,

Is it ok to put 100 octane fuel in 335 once in a while if i want to have more power/fun? I am really curious how it will behave running 100 octane... fyi mine is stock...

any infor will be appreciated...

Thanks
__________________
2008 E90 335i
Jet Black, Black Leatherette, Aluminum, Automatic, Paddle, Sport Package, Ipod/USB, Formula One Pinnacle Tint 35%, Depo Blackline, M3 reps front bumper, Black Gloss Grille, Matte Black M359, V1
PINOY_E90 is offline   Philippines
0
Reply With Quote
      01-25-2009, 08:52 PM   #2
theplayer
Private
 
theplayer's Avatar
 
Drives: 3-series
Join Date: Jan 2009
Location: Los Angeles

Posts: 83
iTrader: (0)

Your car will explode!
theplayer is offline   United_States
0
Reply With Quote
      01-25-2009, 08:55 PM   #3
aut0sh0cker
meh
 
aut0sh0cker's Avatar
 
Drives: E92 335i, 997.2 C4S
Join Date: Jan 2008
Location: 91362

Posts: 1,758
iTrader: (2)

your car will enjoy it! if you really want more power just get a JB3/V3
aut0sh0cker is offline   United_States
0
Reply With Quote
      01-25-2009, 09:08 PM   #4
TedRoc335i
Private
 
TedRoc335i's Avatar
 
Drives: 09 335 LCI Sedan Alpine White
Join Date: Jan 2009
Location: Columbus, Ohio

Posts: 63
iTrader: (1)

Garage List
2009 335 Sedan  [0.00]
Not sure... Let us know!
__________________
2009 BMW 335i LCI SPORT SEDAN
Alpine White / Black Leather / Brushed Aluminum Trim / Heated Seats / Sport Package / 6-Speed Manual
7Logic / 19" M6's / 35% tint / Front Splitters / M3 Lip / Lux H8 Angel Eyes / Lamin-x yellow fogs / Painted Reflectors / Coco Mats / COBB AccessPort coming soon
TedRoc335i is offline   United_States
0
Reply With Quote
      01-25-2009, 09:37 PM   #5
clickclickboom
Private First Class
 
Drives: Por she
Join Date: Oct 2008
Location: Over here

Posts: 104
iTrader: (0)

If you have no way of increasing boost or timing, nothing different will happen.
clickclickboom is offline  
0
Reply With Quote
      01-25-2009, 09:40 PM   #6
captainaudio
World's Foremost Authority
 
Drives: 335i E93 750Li
Join Date: Jul 2007
Location: Upper East Side Manhattan - Boca Raton Florida

Posts: 3,216
iTrader: (0)

Quote:
Originally Posted by clickclickboom View Post
If you have no way of increasing boost or timing, nothing different will happen.
Using higher octane gas than the car is designed for will not harm anything but it will not give you a performance advantage.

CA
__________________

Drivers Club at Lime Rock - International Motorsports Research Center
Madison Avenue Sports Car Driving and Chowder Society (Only a Vice President)
Polish Racing Drivers of America (PRDA)
The Glen Club - Sports Car Club of America
captainaudio is offline   United_States
0
Reply With Quote
      01-26-2009, 03:33 AM   #7
Deda
Major General
 
Deda's Avatar
 
Drives: BMW X6 35d
Join Date: Apr 2008
Location: Croatia

Posts: 6,503
iTrader: (0)

if you want more power buy M3! dont mess with octane numbers.
Deda is offline   Croatia
0
Reply With Quote
      01-26-2009, 04:07 AM   #8
BMW MotorSport
Banned
 
Drives: 95 Avus M3 and 07 E90 Fam Car!
Join Date: Nov 2006
Location: So Cal, Simi Valley

Posts: 2,533
iTrader: (4)

Send a message via Yahoo to BMW MotorSport
Quote:
Originally Posted by captainaudio View Post
Using higher octane gas than the car is designed for will not harm anything but it will not give you a performance advantage.

CA
+1 agree, no gains.
BMW MotorSport is offline  
0
Reply With Quote
      01-26-2009, 08:17 AM   #9
exo-ak-dk
Black Magic Wheels - BMW
 
exo-ak-dk's Avatar
 
Drives: E90
Join Date: Aug 2007
Location: Denmark

Posts: 1,090
iTrader: (0)

+15 HP/30 TQ!!!!!
exo-ak-dk is offline   Denmark
0
Reply With Quote
      01-26-2009, 01:47 PM   #10
vegasspeed
Captain
 
vegasspeed's Avatar
 
Drives: 335i 6MT coupe Montego Blue
Join Date: Apr 2008
Location: Las Vegas

Posts: 761
iTrader: (1)

It does nothing. Get a book on turbo charging. It will answer a lot of these questions. Everytime you change boost you have to alter fuel enrichment, engine timing and cooling of the engine. I all you do is one of the 3 it doesn't give you anything helpful. The car must be programed for it.
__________________
335i coupe Montego Blue Dinan stage 3 tune, Advan RS wheels 350whp/365wtq
1994 Brooklands Green Acura NSX Comptech Supercharged 390whp/300wtq
vegasspeed is offline   United_States
0
Reply With Quote
      01-26-2009, 01:50 PM   #11
Sniz
Lieutenant General
 
Sniz's Avatar
 
Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

Posts: 10,563
iTrader: (1)

Quote:
Originally Posted by Deda View Post
if you want more power buy M3! dont mess with octane numbers.
__________________
Sniz is offline  
0
Reply With Quote
      01-26-2009, 01:50 PM   #12
lawdude
Colonel
 
lawdude's Avatar
 
Drives: 335i ZPP ZSP TiAg MT
Join Date: Jul 2006
Location: Georgia

Posts: 2,259
iTrader: (1)

Make sure it's unleaded.
__________________
What do I know? I'm insane.
lawdude is offline   United_States
0
Reply With Quote
      01-26-2009, 04:08 PM   #13
GeorgiaTech335coupe
Lieutenant Colonel
 
Drives: Black BMW 335i coupe
Join Date: Mar 2007
Location: USA

Posts: 1,884
iTrader: (0)

It won't hurt your engine and will give you a little more power. If you are stock, then it won't be much, but the ecu should add a little timing especially at high rpms. 100 octane gave me about .5 mph in my 1/4 mi runs.
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
GeorgiaTech335coupe is offline  
0
Reply With Quote
      01-26-2009, 04:14 PM   #14
Mr. 5
Modder Raider
 
Mr. 5's Avatar
 
Drives: M3
Join Date: Apr 2007
Location: Surf City, HB

Posts: 8,625
iTrader: (31)

Garage List
2007 e90 335i  [4.00]
Quote:
Originally Posted by lawdude View Post
Make sure it's unleaded.
This is the only rule that you should follow.
I will be running 105 this Friday and it won't hurt anything.
Leaded gas will destroy your cats!!
__________________
e36 M3 Coupe, e36 325i Sedan
e90 335i--SOLD

Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
Mr. 5 is offline   Scotland
0
Reply With Quote
      01-26-2009, 04:16 PM   #15
GeorgiaTech335coupe
Lieutenant Colonel
 
Drives: Black BMW 335i coupe
Join Date: Mar 2007
Location: USA

Posts: 1,884
iTrader: (0)

Quote:
Originally Posted by Mr. 5 View Post
This is the only rule that you should follow.
I will be running 105 this Friday and it won't hurt anything.
Leaded gas will destroy your cats!!
Some tuners say a diluted mix of leaded is ok. 50/50 at least, not that I'm willing to try it.
__________________
Legal Disclaimer: Anything I or anyone else says about my vehicle on this website(e90post.com or any affiliated or nonaffiliated sites), pertaining to modifications, is only to gain acceptance from my/our peers, and does not actually represent anything actually existing on my car, and thus, cannot be held against me in any issues, i.e. warranty claims, that may arise.
GeorgiaTech335coupe is offline  
0
Reply With Quote
      01-26-2009, 04:29 PM   #16
Sniz
Lieutenant General
 
Sniz's Avatar
 
Drives: e92 335 - gone // e36 M3 turbo
Join Date: Mar 2007
Location: Ellicott City, MD

Posts: 10,563
iTrader: (1)

more concerned about your o2 sensors w/ the leaded fuel.

I have no cats.
__________________
Sniz is offline  
0
Reply With Quote
      01-26-2009, 05:06 PM   #17
Mr. 5
Modder Raider
 
Mr. 5's Avatar
 
Drives: M3
Join Date: Apr 2007
Location: Surf City, HB

Posts: 8,625
iTrader: (31)

Garage List
2007 e90 335i  [4.00]
Quote:
Originally Posted by Sniz View Post
more concerned about your o2 sensors w/ the leaded fuel.

I have no cats.
It will take some time before the 02 sensors go, but the cats is a for sure deal.

Quote:
Originally Posted by GeorgiaTech335coupe View Post
Some tuners say a diluted mix of leaded is ok. 50/50 at least, not that I'm willing to try it.
Yeesh. Yah, you can try it. I wouldn't trust leadded fuel with any sort of cat.
__________________
e36 M3 Coupe, e36 325i Sedan
e90 335i--SOLD

Best 60-130-------------9.15 Seconds------------------WWW.MR5RACING.COM
Mr. 5 is offline   Scotland
0
Reply With Quote
      01-26-2009, 05:07 PM   #18
vegasspeed
Captain
 
vegasspeed's Avatar
 
Drives: 335i 6MT coupe Montego Blue
Join Date: Apr 2008
Location: Las Vegas

Posts: 761
iTrader: (1)

I say even with a Dinan tune it doesn't give you that much help. Procede and others actually have a seperate map for running race fuel. Those maps get the very most out of the race fuel with timing, fuel delivery and engine cooling.
__________________
335i coupe Montego Blue Dinan stage 3 tune, Advan RS wheels 350whp/365wtq
1994 Brooklands Green Acura NSX Comptech Supercharged 390whp/300wtq
vegasspeed is offline   United_States
0
Reply With Quote
      09-11-2011, 07:19 AM   #19
ducati955
Lieutenant Colonel
 
ducati955's Avatar
 
Drives: lifted tacoma on 38's & ducati
Join Date: Sep 2006
Location: long island ny

Posts: 1,718
iTrader: (2)

Garage List
2007 BMW 335i  [5.00]
old thread, but since its been a while, this causes no harm at all? but really only helps w a tune?

is it good to run once in a while to "clean" the car a little? or am i just making crap up?

thanks guys
__________________
car totaled out !!AW335i, oem aero lip, m3 csl rims, oem m3 sides, vorst csl carbon trunk, tinted, lowered on H&R sport, AR DP's, Bastauck dual exhaust, BMS intake, etc

NEW RIDE white GTR!
ducati955 is offline  
0
Reply With Quote
      09-11-2011, 09:01 AM   #20
Mallard
4 pot warrior
 
Mallard's Avatar
 
Drives: E90 318I
Join Date: Apr 2009
Location: DENMARK

Posts: 1,307
iTrader: (1)

Garage List
2006 e90  [5.00]
it wont "clean" anything so much, but it will make the ecu adjust

this will take time, but will reflect in your mpg

this will also revert (in time) when you change back to your regular octane value

the power gains are real, but minimal. and this depends greatly on the condition of the engine and exhaust on the whole

but , id do it
__________________

Been there, done that, wanna do it again
Mallard is offline   No_Country
0
Reply With Quote
      09-11-2011, 09:08 AM   #21
cwn23
Major
 
Drives: E92
Join Date: May 2007
Location: USA

Posts: 1,159
iTrader: (0)

Putting race gas on a stock car will give minimal gains, but adding race gas to a modded car will give you the results you are looking for
cwn23 is offline  
0
Reply With Quote
      09-11-2011, 09:20 AM   #22
ErvGotti
Major
 
Drives: 2008 135i 6MT
Join Date: Jul 2010
Location: Bury St Edmunds UK

Posts: 1,165
iTrader: (5)

Garage List
2008 135i  [3.00]
Quote:
Originally Posted by ducati955 View Post
old thread, but since its been a while, this causes no harm at all? but really only helps w a tune?

is it good to run once in a while to "clean" the car a little? or am i just making crap up?

thanks guys
A waste of money unless you are increasing boost. BMW designed these engines to run on 91oct with peak performance on 93oct with the stock tune. Anything above 93 and you might pick up 5hp with better timing. If you want to clean the fuel system a little just throw in some Techron or BG 44k in the fuel tank.
ErvGotti 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 07:09 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