Learning how to operate COBB AP
Page 1 of 2 12 LastLast
Results 1 to 15 of 18

This is a discussion on Learning how to operate COBB AP within the Tuning: Electronic Engine Management forums, part of the Tech & Modifying & General Repairs category; I own a 2011 WRX STi, and got an accessport and stage 1 the other day. I've been using it ...

  1. #1
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973

    Learning how to operate COBB AP

    I own a 2011 WRX STi, and got an accessport and stage 1 the other day. I've been using it as a boost gauge, but would also like to live monitor a few other things, what are some good things to monitor? Like maybe trans temp, or exhaust temp etc.

  2. Remove Advertisements
    ClubWRX.net
    Advertisements
     

  3. #2
    Registered User jimbo058's Avatar
    Join Date
    Apr 2010
    Location
    Colorado Springs, Colorado
    Posts
    114
    Air/Fuel Ratio, Intake Temperature, and Wastegate Duty Cycle are other interesting features to monitor. A/F ratio is one of the most important items to keep under control to avoid catastrophic engine damage from occurring. I have also used the AP as a shift light at the drag races !!!

  4. #3
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,670
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by jimbo058 View Post
    Air/Fuel Ratio....A/F ratio is one of the most important items to keep under control
    Useless if you don't have a WideBand O2 sensor.


    Things you really want to monitor:
    DAM
    RPM
    Calculated Load
    FBKC
    FLKC
    Boost

    I'm not familiar with the newer CANbus ECU (2008+ WRX/STi), but with the older ECUs, the more parameters you log, the lower the resolution of your logs. Therefore, it's always best to reduce the number of parameters you log to the bare essentials.
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  5. #4
    Master Baiter EJ257's Avatar
    Join Date
    Aug 2007
    Location
    On a stream bank somewhere
    Posts
    19,661
    I Support ClubWRX

    Re: Learning how to operate COBB AP

    Quote Originally Posted by zax
    Things you really want to monitor:
    DAM
    RPM
    Calculated Load
    FBKC
    FLKC
    Boost

    I'm not familiar with the newer CANbus ECU (2008+ WRX/STi), but with the older ECUs, the more parameters you log, the lower the resolution of your logs. Therefore, it's always best to reduce the number of parameters you log to the bare essentials.
    What you log is dependant on what information you're interested in. If you're interested in boost, the parameters will be different than if you're interested in CL fueling, etc.

    For all-purpose log, what Zach mentioned plus:
    Throttle position
    Boost error
    Ignition timing

    As for the resolution comment, the same is true. You have XX bandwidth; the more parameters trying to go through, the less resolution you have on each.
    2005 WRX STi (Mods | Virtual Dyno)

    Resident Tuner @ WTF Tuning, LLC

    "Never trust anything that bleeds for a week and lives ..."

    UNYSOC

  6. #5
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973

    Learning how to operate COBB AP

    I want to make sure tune is running correctly and engine isnt being harmed. Please dont use any abbreviations, im bad enough at this as is. TY.

  7. #6
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,670
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by Mike193 View Post
    I want to make sure tune is running correctly and engine isnt being harmed. Please dont use any abbreviations, im bad enough at this as is. TY.
    Without a Wideband O2 sensor, that's going to be tough. This is more reactive than proactive, but it works... logging FBKC and FLKC (especially FBKC) with calculated load, TPS, and boost will tell you if you are knocking at high-boost and load. That is the most common failure point from tuning.
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  8. #7
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973
    Quote Originally Posted by zax View Post
    Without a Wideband O2 sensor, that's going to be tough. This is more reactive than proactive, but it works... logging FBKC and FLKC (especially FBKC) with calculated load, TPS, and boost will tell you if you are knocking at high-boost and load. That is the most common failure point from tuning.
    Uhh, no offence, but WTF is FBKC, FLKC, TPS. Idont see those under the data logging section, and there are like a hundred things lol

  9. #8
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,670
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by Mike193 View Post
    Uhh, no offence, but WTF is FBKC, FLKC, TPS. Idont see those under the data logging section, and there are like a hundred things lol
    WTF = What the ****
    FBKC = Feedback Knock Correction
    FLKC = Fine Learn Knock Correction
    TPS = Throttle Position Sensor
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  10. #9
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973
    Thank you sir, although I was informed on WTF years ago hahaa, just new to the AP and so far, I'm getting very discouraged and considering just selling it.

  11. #10
    Registered User WRidesX's Avatar
    Join Date
    Oct 2011
    Location
    CO
    Posts
    131
    Quote Originally Posted by Mike193 View Post
    Thank you sir, although I was informed on WTF years ago hahaa, just new to the AP and so far, I'm getting very discouraged and considering just selling it.
    This has all been very helpful to hear considering I'm debating still between the two tuning options. I do like the idea of using the AP as a gauge and a way to monitor (mainly my A/F ratios.
    '02 WRX Bugeye; Midnight Blue / Black Pearl

  12. #11
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,670
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by WRidesX View Post
    This has all been very helpful to hear considering I'm debating still between the two tuning options. I do like the idea of using the AP as a gauge and a way to monitor (mainly my A/F ratios.
    Guys. If you don't have a Wideband O2 sensor (which the AP cannot read), there is no point in monitoring AFRs since the AFRs that are reported by the narrow-band O2 sensor are only useful when averaged over a long period of time and only when rich.
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  13. #12
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973
    I'm pushing 18.5 at full boost. Alot of friends are claiming this is overboard, is that just because they don't know much about these cars? I'm only on a cobb stage 1 tune... I dont wanna ruin anything running too much boost

  14. #13
    zax
    zax is offline
    \_(ツ)_/ zax's Avatar
    Join Date
    Nov 2008
    Location
    Neverland Ranch, Maryland
    Posts
    12,670
    I Support ClubWRX I Support ClubWRX
    Quote Originally Posted by Mike193 View Post
    I'm pushing 18.5 at full boost. Alot of friends are claiming this is overboard, is that just because they don't know much about these cars? I'm only on a cobb stage 1 tune... I dont wanna ruin anything running too much boost
    Sounds like your friends need to learn how to read. From the 2011 STi Cobb Stage 1 map notes:

    Stage1 93 v301 Boost Select - Intended for 2008-2011 Subaru Impreza WRX STi vehicles with stock intake
    system, and a stock exhaust running 93 or 94 octane petrol. Boost Targets: ~18psi (S#) or 15.5psi (S) peak boost
    pressure tapering down to ~13psi by the 7000 RPM redline, +/- 1.0psi.
    https://static.cobbtuning.com/cobbtu...20-%20v301.pdf
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
    Zax's utterly unimaginably stock 2015 STi build thread
    Zax's Shaggin' Wagon Build Thread Now tuned for 99% pure Unicorn Jizz!

    Zach | Moderator -- Mid-Atlantic States, Tech & Modifying & General Repairs
    Rollin' with the Bugeye Mafia #302 | N.E.R.D. Subject Zero
    Facebook me here

    Your Mid-A local board: http://www.clubwrx.net/forums/mid-atlantic-states/

  15. #14
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973
    Looks like I need to learn how to read. thank you sir.

  16. #15
    Registered User Mike193's Avatar
    Join Date
    Nov 2011
    Location
    North Jersey
    Posts
    973

    Learning how to operate COBB AP

    So tonight i played around with the AP and it really is neat and cool. 2 things i however couldn't figure out. 1. I couldn't find 2 step launch, and i couldn't find flat foot shifting.

    If anyone can give me some real quick pointers or tips it would really help a guy out.

Page 1 of 2 12 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •