E90Post
 


Studio RSR
 
BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Powertrain and Drivetrain Discussions > N54 Turbo Engine / Drivetrain / Exhaust Modifications - 335i > Cobb Stage 2+ Aggressive and 91 Oct?



Reply
 
Thread Tools Search this Thread
      02-01-2012, 07:39 PM   #1
mattyjman
First Lieutenant
23
Rep
375
Posts

Drives: 2008 E93 Silver
Join Date: Jan 2011
Location: PHX

iTrader: (4)

Cobb Stage 2+ Aggressive and 91 Oct?

I don't know if anyone was dumb enough to ask this yet, but what happens if i run stage 2 aggresive and only have 91 oct to pipe in...? are we talking about a catastrophic failure here, or....

I really want to most, but AZ stops at 91 oct... what do I do?
Appreciate 0
      02-01-2012, 07:40 PM   #2
themyst
Major General
themyst's Avatar
South Korea
177
Rep
6,631
Posts

Drives: '16 MK7 GTI
Join Date: Feb 2009
Location: NYC

iTrader: (8)

Quote:
Originally Posted by mattyjman View Post
I don't know if anyone was dumb enough to ask this yet, but what happens if i run stage 2 aggresive and only have 91 oct to pipe in...? are we talking about a catastrophic failure here, or....

I really want to most, but AZ stops at 91 oct... what do I do?
Your car will hate you, your timing will take a dump and you might do damage if the ECU doesn't catch it fast enough. Either get a meth kit with small meth nozzle or get some octane booster.
__________________
E90 LCI N54 6AT
Appreciate 0
      02-01-2012, 07:41 PM   #3
Dark9T
Captain
Dark9T's Avatar
United_States
26
Rep
660
Posts

Drives: 2010 Red 335i E92 AT
Join Date: Jun 2011
Location: las vegas

iTrader: (0)

pump 40% race gas to mix the 91 oct..
Appreciate 0
      02-01-2012, 08:22 PM   #4
mattyjman
First Lieutenant
23
Rep
375
Posts

Drives: 2008 E93 Silver
Join Date: Jan 2011
Location: PHX

iTrader: (4)

neither of those seem really "daily driver" -able...
Appreciate 0
      02-01-2012, 10:30 PM   #5
805beemer
Captain
United_States
23
Rep
647
Posts

Drives: 2008 135i
Join Date: Jul 2011
Location: Lompoc, CA

iTrader: (4)

I got to try the stage 2+ aggresive map for the first time today. I had about 9 gallons of 91 and put in 5.75 gallons of 100. What a difference though compared to the sport map. At 120 in 5th gear around 4.5k rpms, the car rockets off. I need to do some logs so I can compare them to the 91/e-85 blend I usually run with the sport map. Made my decision to get a meth kit that much easier
Appreciate 0
      02-01-2012, 11:16 PM   #6
skinrock
Agent Smith
skinrock's Avatar
270
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 mattyjman View Post
neither of those seem really "daily driver" -able...
Tell me about it. I switched from a JB4 + meth kit to Cobb because I didn't want to mess with the meth. Now I'm not saying meth is the most difficult thing in the world, it was just my personal experience that I couldn't test it enough to get it working right. I don't regret switching at all, the Stage 2+FMIC sport map feels every bit as strong if not stronger - but just knowing there is one map higher makes it impossible to resist the urge.

If you absolutely don't want to do meth, mixing octane is really the only way to go. To me it's not the end of the world - I rarely even push it on the sport map. Only reason I would switch is when I know I'm going to the track/strip or for events like the airstrip shootout.
__________________
The i8 needs a V8 amirite?
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 05:17 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