Welcome to the North American Subaru Impreza Owners Club Monday July 28, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
Rocky Mountains Impreza Club
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Chapters > Rocky Mountains Impreza Club Forum -- RMIC

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 05-23-2011, 10:22 PM   #1
wrcwia
Scooby Newbie
 
Member#: 272712
Join Date: Feb 2011
Default Cobb ACN maps

I tried searching and couldn't find an answer. Obviously the ACN stands for Az, Cali, Nev...but should we be using that map in Utah as well, being that we only have 91 octane?

Thanks
* Registered users of the site do not see these ads.
wrcwia is offline   Reply With Quote
Old 05-23-2011, 10:31 PM   #2
Fast03Wagon
Scooby Newbie
 
Member#: 142375
Join Date: Mar 2007
Chapter/Region: BAIC
Location: San Rafael, CA
Vehicle:
2003 WRX Wagon
Midnight Blue

Default

I was under the impression that the ACN map was taking into account the amount of ethanol in the fuel. Here in NV, I usually find 10% ethanol gas where in UT I think they are mandated to have 15% ethanol (maybe you can tell me otherwise). More ethanol in the gas means a lower tendancy to knock, so the ACN maps run a bit less timing. Could be wrong though. I lived in Park City over the winter and they have E15 up there.
Fast03Wagon is offline   Reply With Quote
Old 05-23-2011, 10:38 PM   #3
bhhamblin
n00b Moderator
Moderator
 
Member#: 99397
Join Date: Oct 2005
Chapter/Region: RMIC
Location: Clinton, UT
Vehicle:
13 STI, 83 DR30
93 R32 GTS-T, 93 R32 GTR

Default

You dont need to use it in Utah. I never have and have had no problems. I guess the fuel in a,c,n is less quality.
bhhamblin is offline   Reply With Quote
Old 05-23-2011, 10:42 PM   #4
Fast03Wagon
Scooby Newbie
 
Member#: 142375
Join Date: Mar 2007
Chapter/Region: BAIC
Location: San Rafael, CA
Vehicle:
2003 WRX Wagon
Midnight Blue

Default

Quote:
Originally Posted by bhhamblin View Post
You dont need to use it in Utah. I never have and have had no problems. I guess the fuel in a,c,n is less quality.
Ive always wondered what people mean by less quality fuel...an octane rating is nationally standardized.
Fast03Wagon is offline   Reply With Quote
Old 05-23-2011, 10:50 PM   #5
azn2nr
Scooby Specialist
 
Member#: 35276
Join Date: Apr 2003
Chapter/Region: RMIC
Location: Salt Lake City, UT
Vehicle:
2006 2.5i clone
438/420 whp

Default

most stations have 10% e in the gas
azn2nr is offline   Reply With Quote
Old 05-23-2011, 10:53 PM   #6
godfather2112
Papi Chulo
Moderator
 
Member#: 53794
Join Date: Jan 2004
Chapter/Region: RMIC
Location: utah
Vehicle:
.... OT Supplement
Testing Division.

Default

Quote:
Originally Posted by Fast03Wagon View Post
Ive always wondered what people mean by less quality fuel...an octane rating is nationally standardized.
Ever get a batch of ****ty 91 oct gas? Ever switch between chevron and 711 gas.

Go tell me if you feel a difference.
godfather2112 is offline   Reply With Quote
Old 05-23-2011, 11:05 PM   #7
subiewrx001
Scooby Newbie
 
Member#: 193591
Join Date: Nov 2008
Chapter/Region: RMIC
Location: Salt Lake city, Utah
Vehicle:
04 WRX VF34
water/meth, spt intake

Default

I always put in shell 91 which is supposedly nitrogen enriched but I do get better MPGs since using shell.
subiewrx001 is offline   Reply With Quote
Old 05-23-2011, 11:38 PM   #8
bhhamblin
n00b Moderator
Moderator
 
Member#: 99397
Join Date: Oct 2005
Chapter/Region: RMIC
Location: Clinton, UT
Vehicle:
13 STI, 83 DR30
93 R32 GTS-T, 93 R32 GTR

Default

Quote:
Originally Posted by Fast03Wagon View Post
Ive always wondered what people mean by less quality fuel...an octane rating is nationally standardized.
I have driven my WRX in Arizona. It started to pull about -7* of timing. I dont think elevation would change it that much. I have also gotten bad gas and had the same problem locally. Mostly from Maverick and Flying J. I do notice better gas mileage from using Tesoro/ Conoco gas then I do Chevron.
bhhamblin is offline   Reply With Quote
Reply

Thread Tools
Display Modes

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

Similar Threads
Thread Thread Starter Forum Replies Last Post
Difference between Stage1 map and ACN map? burnrubber AccessPort 10 01-26-2010 11:08 PM
Stage 2 Acn Map Or Stage 2 91 Oct? 07subie Southern California Impreza Club Forum -- SCIC 8 09-24-2007 12:45 AM
What is an ACN map? crand002 AccessPort 2 01-01-2007 07:29 PM
cobb vf34 map + greddy boost controller? cheese tits Factory 2.0L Turbo Powertrain 1 01-16-2004 04:45 PM
Anyone using ECUTEK / COBB reflash map? Gethin Vancouver Impreza Club Forum -- VIC 23 09-18-2003 01:35 PM


All times are GMT -4. The time now is 10:00 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2014 Axivo Inc.
Copyright ©1999 - 2014, North American Subaru Impreza Owners Club, Inc.