Welcome to the North American Subaru Impreza Owners Club Thursday April 24, 2014
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
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 Technical > Engine Management & Tuning > AccessPort

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 02-07-2009, 01:53 PM   #1
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default COBB AccessTUNER Pro Supports Speed Density Tuning!

01/16/12 - Speed Density support has been implemented in AccessTUNER Pro and AccessPORT firmware for 2.5L turbocharged Subaru's. New thread created here - http://forums.nasioc.com/forums/show...7#post36136777


Portland International Auto Show
Portland, OR
February 7, 2009

COBB Tuning is proud to announce the availability of AccessTUNER Pro “Speed Density” support for all Subaru drive-by-wire vehicles equipped with a COBB v2 AccessPORT. The new “Speed Density” implementation instructs the ECU to calculate load by using temperature and manifold absolute pressure (MAP) as opposed to the OEM code that utilizes mass air flow (MAF). This development addresses the growing demand within the Subaru enthusiast community for motorsports grade engine management without sacrificing the drive-ability and sophistication inherent in the OEM ECU.

The most basic function of an engine control unit (ECU) is to measure airflow and its translation to engine load. Precise and consistent load calculations along with feedback from other critical sensors allow the ECU to accurately control ignition timing, variable camshafts, and fuel delivery. The most common way to measure load in modern vehicles is with a mass air flow sensor (MAF). Vehicles with stock engines and mild upgrades can utilize the MAF sensor with excellent overall results. However, in a motor sports application where power levels are extremely high and intake airflow configurations are less standardized, the use of a MAF sensor can be highly limiting.

The enhanced AccessTUNER Pro software now offers multiple ECU control modes to give the professional tuner and AccessPORT user a wider choice of engine modifications and tuning options. The software can program the ECU to run in the traditional pure MAF mode, a pure “Speed Density” mode, or a hybrid of both MAF and “Speed Density” with multiple configurable parameters to control dynamic mode switching.

Surgeline Tuning (www.surgelinetuning.com), a premier COBB tuning and installation facility, has performed rigorous testing of the software and has validated “Speed Density” and hybrid modes on MAP sensor equipped Subaru test vehicles with impressive results. This means that high horsepower projects that would typically require the use of expensive and comparatively unreliable stand-alone ECU's can now benefit from the reliability and consistency of the stock ECU partnered with the increasingly capable Cobb AccessPORT and COBB’s network of experienced professional tuners.

The COBB AccessPORT is the ultimate hand-held ECU reprogramming, managing and monitoring device available and COBB Tuning’s ongoing delivery of innovative features and functionality continues to widen the gap to the competition. No other solution even comes close! Access the Potential!

For information on acquiring the AccessTUNER Pro “Speed Density” software module, please email us at sales@cobbtuning.com.
* Registered users of the site do not see these ads.

Last edited by Cobb Tuning; 01-16-2012 at 03:10 PM.
Cobb Tuning is offline   Reply With Quote
Old 02-07-2009, 09:23 PM   #2
robbieshonda
Scooby Specialist
 
Member#: 122306
Join Date: Aug 2006
Chapter/Region: South East
Location: On the Dyno NC
Vehicle:
2002 Sti PTE 6262
Interlagos Blue 551/441

Default

Glad to see this is finally out. Any plans on posting more info in the Cobb Protuner forum?
robbieshonda is offline   Reply With Quote
Old 02-07-2009, 11:14 PM   #3
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

Look for a complete technical description along with an example dyno tune in Proven Power Bragging section in the near future.

Best regards
Tim
Cobb Tuning is offline   Reply With Quote
Old 02-08-2009, 12:40 AM   #4
atomicfire
Scooby Specialist
 
Member#: 136296
Join Date: Dec 2006
Chapter/Region: TXIC
Location: Midtown, Houston, TX
Vehicle:
2005 STi
OBP

Default

Any idea when MAP based staged maps will be available? Or support for ATR?
atomicfire is offline   Reply With Quote
Old 02-08-2009, 12:41 AM   #5
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK Houston
we have an Uncle

Default

now THIS is interesting

Last edited by Uncle Scotty; 02-08-2009 at 04:06 PM.
Uncle Scotty is offline   Reply With Quote
Old 02-08-2009, 01:08 PM   #6
Epic Motorsports
Former Vendor
 
Member#: 198925
Join Date: Jan 2009
Chapter/Region: South East
Location: Fayetteville NC
Default

Quote:
Originally Posted by atomicfire View Post
Any idea when MAP based staged maps will be available? Or support for ATR?
We havent even had this released for protuner yet. so probably sometime after we are able to play with it.
Epic Motorsports is offline   Reply With Quote
Old 02-08-2009, 07:09 PM   #7
Cobb Tuning
NASIOC Vendor
 
Member#: 4803
Join Date: Mar 2001
Location: Austin, DFW, Portland, SOCAL
Default

Cobb Tuning is offline   Reply With Quote
Old 02-11-2009, 11:06 AM   #8
kiwee
Scooby Newbie
 
Member#: 119232
Join Date: Jul 2006
Default

whats the eta for tuners to start using this?
kiwee is offline   Reply With Quote
Old 02-11-2009, 11:43 AM   #9
nme187
Scooby Specialist
 
Member#: 117763
Join Date: Jun 2006
Chapter/Region: RMIC
Default

IIRC there's no real eta yet
nme187 is offline   Reply With Quote
Old 02-12-2009, 03:33 PM   #10
irascible
Scooby Specialist
 
Member#: 159454
Join Date: Sep 2007
Chapter/Region: SWIC
Location: Mesa
Vehicle:
2006 WRX CGM
6SPD Cornfed GT30R

Default

Okay, my wait to buy an accessport is almost over.... this is huge.

Do you have to pay MORE for the module, or is it a free update?
irascible is offline   Reply With Quote
Old 02-12-2009, 03:41 PM   #11
nme187
Scooby Specialist
 
Member#: 117763
Join Date: Jun 2006
Chapter/Region: RMIC
Default

I believe this is for ProTuners only and STi's for intial release then WRX's....
nme187 is offline   Reply With Quote
Old 02-12-2009, 03:54 PM   #12
irascible
Scooby Specialist
 
Member#: 159454
Join Date: Sep 2007
Chapter/Region: SWIC
Location: Mesa
Vehicle:
2006 WRX CGM
6SPD Cornfed GT30R

Default

Quote:
Originally Posted by nme187 View Post
I believe this is for ProTuners only and STi's for intial release then WRX's....
In the first sentence it says all DBW subaru's. May be true for Protuners only though.
irascible is offline   Reply With Quote
Old 02-12-2009, 03:56 PM   #13
nme187
Scooby Specialist
 
Member#: 117763
Join Date: Jun 2006
Chapter/Region: RMIC
Default

^^^ That will be true, but the initial release will be for STi only then WRX. I asked them about it
nme187 is offline   Reply With Quote
Old 02-12-2009, 03:57 PM   #14
Badazzcr
Scooby Specialist
 
Member#: 67693
Join Date: Aug 2004
Chapter/Region: South East
Location: Atlanta,GA
Vehicle:
4 Making them
faster then anyone else.

Default

Guys as of now from what I understand this will be a Protune feature only for sometime. Once the Protuner network has worked out all the bugs and has proven this feature you might see it passed down.

But that most likely will not be for quite some time.


Doug
Topspeed
Badazzcr is offline   Reply With Quote
Old 02-12-2009, 04:06 PM   #15
irascible
Scooby Specialist
 
Member#: 159454
Join Date: Sep 2007
Chapter/Region: SWIC
Location: Mesa
Vehicle:
2006 WRX CGM
6SPD Cornfed GT30R

Default

Back to waiting... the first post seems to be missleading.
irascible is offline   Reply With Quote
Old 05-08-2009, 06:27 AM   #16
alcoolaid
Scooby Guru
 
Member#: 134949
Join Date: Dec 2006
Chapter/Region: VIC
Location: Vancouver, BC
Vehicle:
'07 SWP STi
Instagram | arthurlam89

Default

Is this available yet on other years?
alcoolaid is offline   Reply With Quote
Old 05-08-2009, 11:32 AM   #17
nme187
Scooby Specialist
 
Member#: 117763
Join Date: Jun 2006
Chapter/Region: RMIC
Default

Nope, still in it's beta testing phase with some ProTuners. Once that's all dialed in then Cobb is spreading to the other years.

Cheers
nme187 is offline   Reply With Quote
Old 05-10-2009, 05:18 PM   #18
alcoolaid
Scooby Guru
 
Member#: 134949
Join Date: Dec 2006
Chapter/Region: VIC
Location: Vancouver, BC
Vehicle:
'07 SWP STi
Instagram | arthurlam89

Default

Quote:
Originally Posted by Cobb Tuning View Post
February 7, 2009

COBB Tuning is proud to announce the availability of AccessTUNER Pro “Speed Density” support for all Subaru drive-by-wire vehicles equipped with a COBB v2 AccessPORT.

The COBB AccessPORT is the ultimate hand-held ECU reprogramming, managing and monitoring device available and COBB Tuning’s ongoing delivery of innovative features and functionality continues to widen the gap to the competition. No other solution even comes close! Access the Potential!
Why would they say this in February.... it's now May 10th and it's still not available?
alcoolaid is offline   Reply With Quote
Old 06-10-2009, 01:50 PM   #19
unclemat
Scooby Specialist
 
Member#: 114530
Join Date: May 2006
Chapter/Region: NESIC
Location: MA
Vehicle:
2005 LGT 6MT wagon

Default

*bump*
unclemat is offline   Reply With Quote
Old 06-10-2009, 02:59 PM   #20
nme187
Scooby Specialist
 
Member#: 117763
Join Date: Jun 2006
Chapter/Region: RMIC
Default

Some ProTuners have this software and still Beta Testing it. It's getting closer
nme187 is offline   Reply With Quote
Old 06-17-2009, 06:36 PM   #21
unclemat
Scooby Specialist
 
Member#: 114530
Join Date: May 2006
Chapter/Region: NESIC
Location: MA
Vehicle:
2005 LGT 6MT wagon

Default

Ok, in meantime, what are the downsides of speed density calibration vs. MAF...?
unclemat is offline   Reply With Quote
Old 06-27-2009, 10:31 AM   #22
apexslider
Scooby Specialist
 
Member#: 168101
Join Date: Jan 2008
Chapter/Region: NWIC
Vehicle:
14 Camaro SS 1LE
AGM

Default

From what I hear, the only down side would be a searching (or hunting) idle; but that's with full speed density. If you go the hybrid route of MAF / MAP then you get the best of both worlds, good idle from the MAF and good power tunability on boost from the MAP.

looking forward to this finally going mainstream
apexslider is offline   Reply With Quote
Old 06-27-2009, 11:40 PM   #23
Remnex
Scooby Specialist
 
Member#: 83790
Join Date: Mar 2005
Default

Searching and hunting idle should all but be solved via SD. Reason being is that the fueling is strictly based on the air coming into the engine.
Remnex is offline   Reply With Quote
Old 07-22-2009, 10:39 PM   #24
apexslider
Scooby Specialist
 
Member#: 168101
Join Date: Jan 2008
Chapter/Region: NWIC
Vehicle:
14 Camaro SS 1LE
AGM

Default

any updates on this???
apexslider is offline   Reply With Quote
Old 12-25-2009, 08:12 PM   #25
CoolRex
*** Banned ***
 
Member#: 85813
Join Date: Apr 2005
Chapter/Region: South East
Location: Myrtle Beach, SC
Vehicle:
2002 E46 M3
2006 RC51

Default

Little birdy told me some new engineers are now at Cobb and that they are working on 16 bit ECU's. Can you confirm/validate this? If so I'm VERY interested in helping my tuner beta test for the 16 bit ECU if he is up for it I have a built hybrid using the 16 bit ecu and with a GT35R I'm very easily maxing out the MAF. SD would ROCK for my setup
CoolRex 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
Speed Density Tuning with the Accessport on an 08 STI Cobb Tuning Proven Power Bragging 59 06-07-2010 01:22 PM
Accesstuner pro Version 1 ShaneInHisRoom AccessPort 0 04-25-2010 12:26 PM
Cobb AP + GM Maf or Speed density cpunlamd AccessPort 0 02-28-2009 08:19 AM
Speed Density tuning Psipwrd UTEC 61 10-02-2007 04:59 AM
UTEC Speed Density Tuning How-To? Zumble UTEC 2 02-10-2007 03:16 PM


All times are GMT -4. The time now is 08:34 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.