Volks AutosJMB Retrofits
Results 1 to 9 of 9
  1. #1
    S3 Paul's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2006
    Posts
    2,764

    What blocks to measure on vag com to check the mapping?

    Ive got a few days off work and have planned a few hours recriational driving
    I keep reading that people log some of the measuring blocks on vag com,
    Well which ones give an indication on how well things are going?
    What figures should i want to see from say... lambda?
    Noggy Blue 2001 S3

    I ask questions because i change my mind so much. If i ask questions you have already covered... just leave it be?

  2. # ADS
    ADS
    Join Date
    Always
    Posts
    Many
     
  3. #2
    Prawn's Avatar
    My other car is a MINI!!!!

    Status
    Online
    Join Date
    Dec 2006
    Location
    Basingstoke
    Posts
    9,381
    well.....

    it's been said many a time, that in the VAG 20vt engines, the bhp is roughly equivalent to MAF/0.8, where MAF is the maf log of air mass in g/s.

    so if you're drawing a peak MAF reading of 200g/s, divide that by 0.8 and you get 250bhp....

    it seems fairly accurate, as from what I've read a standard S3 tends to peak at 170-175g/s, which is 210-220bhp....
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  4. #3
    S3 Paul's Avatar
    6th Gear

    Status
    Offline
    Join Date
    Oct 2006
    Posts
    2,764
    I want to check the fueling ( havent wired my wide band gauge up yet ) Also i think ive read about people looking at what timing the car is running.
    Also now ive fitted the front mount cooler i would like to know thats doing the things it should be...
    Noggy Blue 2001 S3

    I ask questions because i change my mind so much. If i ask questions you have already covered... just leave it be?

  5. #4
    Prawn's Avatar
    My other car is a MINI!!!!

    Status
    Online
    Join Date
    Dec 2006
    Location
    Basingstoke
    Posts
    9,381
    take a look at the various blocks, starting from 001 onwards really, and it'll show you all the things it's capable of logging. I think the numbers of blocks vary depending on shareware/full versions, but I was quite easily able to log Inlet temps and BTDC timing values, as well as loads of other things.

    Just have a play viewing different blocks until you find stuff you want to log!
    -------------------------------------------------------------------------------------------------

    Prawns TFSI Turbo'd 1.8T Track Car

    But I know nothing so ignore me.

  6. #5
    <tuffty/>'s Avatar
    Badger 5 Edition

    Status
    Online
    Join Date
    Sep 2008
    Location
    Gloucestershire
    Posts
    15,606
    try blocks:
    001 - will tell you how much fueling the ECU is adding/taking away
    031 - will tell you AFR
    115 - requested boost v actual

    and check 032 after a run to see what the adaption values are... way from

    For more blocks and an explanation, http://www.ross-tech.com/vag-com/m_blocks/

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  7. #6
    ianysm's Avatar
    5th Gear

    Status
    Offline
    Join Date
    Oct 2008
    Location
    Midlands
    Posts
    1,002
    Can the Liquid S3 do any of that?
    AUTOMAP
    Mobile ECU Remapping Services

    automap.remapping@gmail.com
    www.eliteremaps.com

  8. #7
    <tuffty/>'s Avatar
    Badger 5 Edition

    Status
    Online
    Join Date
    Sep 2008
    Location
    Gloucestershire
    Posts
    15,606
    It will tell you AFR but not how much the ECU is compensating and what the adaption values are plus it doesn't 'log'...

    Generally speaking you are looking for a value of 0.8 ish under boost, anything higher and its getting lean...

    Find a private stretch of road and floor it from around 2k to redline in third logging blocks previously mentioned and see how block 031 looks under load as this will tell you if your fuelling is right. Reference that with block 001 to see if the ECU is fighting to correct the fuelling, you shouldn't see much swing between +\- values.

    Block 032 at the end of a run will tell you what adaption values the ECU has applied to keep things in check and will indicate if the map isn't providing enough fuel or too much.

    (Bill, please correct me if I am talking crap...)

    More info on AFR...

    http://en.wikipedia.org/wiki/Air-fuel_ratio

    <tuffty
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

  9. #8
    RIP S3dave

    Status
    Offline
    Join Date
    May 2004
    Location
    nr Glos
    Posts
    7,193
    its funny reading......... deja vous
    **http://www.facebook.com/Badger5Ltd**

    NEW NEW NEW eShop now LIVE>
    www.badger5.biz

    Badger 5 Ltd, Queen Annes Gate, Oldends Lane, Stonehouse, Glos, GL10 2DG


    http://www.badger5.co.uk, Tel:01453822880
    bill@badger5.co.uk
    **NEW** Badger5 Section CLICK here>> http://www.audi-sport.net/vb/213-badger-5/

  10. #9
    <tuffty/>'s Avatar
    Badger 5 Edition

    Status
    Online
    Join Date
    Sep 2008
    Location
    Gloucestershire
    Posts
    15,606
    Quote Originally Posted by S3 Paul View Post
    Also i think ive read about people looking at what timing the car is running.
    Block 020 for timing pull IIRC

    Quote Originally Posted by S3 Paul View Post
    Also now ive fitted the front mount cooler i would like to know thats doing the things it should be...
    Block 118 will give you IAT's

    <tuffty/>
    Silver 2001 AMK S3. Silver alcantara interior... now with added powarrrrrrrr, torques. VAGCOM + KII-USB. >> My build thread...

 

 

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •  
Single Sign On provided by vBSSO

Garage Plus, Vendor Tools vBulletin Plugins by Drive Thru Online, Inc.

Content Relevant URLs by vBSEO