S4 / RS4 (B5 Platform) Discussion Discussion forum for the B5 Audi S4 & RS4 produced from 1998-2002

X-Post: For those uber tuner folks....

Thread Tools
 
Search this Thread
 
Old 12-15-2004, 08:50 AM
  #1  
New Member
Thread Starter
 
whoizrob's Avatar
 
Join Date: Oct 2003
Posts: 394
Likes: 0
Received 0 Likes on 0 Posts
Default X-Post: For those uber tuner folks....

Learning a bit about VAG and just wanted to double check that I am on the right track. When you tune with VAG what blocks do you log? What are they and what are the norm values (max/min?)?

So far I have:
003- MAF/RPM (obviously the values vary)
029- Knock Voltages (want mid teens, no more than 20v max)
031- O2 voltage (less than .85?)
032- LTFT (keep it close to 0%, no more than 10% +/-. field one is trim at idle, field two is on load)
034/043- Left and Right Bank EGT (less than 980 c)
114/115- Req boost vrs Act boost


Am I missing anything here? Is what I wrote accurate? What about Lambda (033/107)? What about Retard angle (020)?

Lastly when working with Lemmiwinks whats the difference between chanel 8 and chanel 10?

Thanks!

Rob
Old 12-15-2004, 09:44 AM
  #2  
AudiWorld Super User
 
Mike2kS4's Avatar
 
Join Date: Jun 2002
Posts: 12,088
Likes: 0
Received 0 Likes on 0 Posts
Default A few things...

003 is also for timing

026/027 are KV's and you can go well into the 20's on a cylinder or two with no performance decrease. 020 and 021 can be used with it.

031 is not accurate (DAP posted on this not too long ago) but consider yourself good if you have between .83 and .86 throughout the range. You can also use your calculated EGT's to get a good idea (034) between the two.

032 is fine if it's around 5%. It's going to adjust a bit to atmospheric conditions.

004 you can use for IAT, pretty important.

033 is short term fuel trims, good to look at while you're tuning fuel along with 032.
Lambda % in this and 107 should be less than 10% either direction.

Hope this helps,
Old 12-15-2004, 10:49 AM
  #3  
AudiWorld Super User
 
Funkweasel's Avatar
 
Join Date: Nov 2001
Posts: 10,132
Likes: 0
Received 0 Likes on 0 Posts
Default On 91oct I've noticed that some cars do a bit better bumping 031

up to the 0.88V range. It varies though so you need to test a lot to make sure, but that's a trend I've seen here in Norcal.
Old 12-15-2004, 10:59 AM
  #4  
AudiWorld Super User
 
Mike2kS4's Avatar
 
Join Date: Jun 2002
Posts: 12,088
Likes: 0
Received 0 Likes on 0 Posts
Default Yep, extra fuel is timing friendly :)

Esp with craptane It's definitely a balance.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
dgkula
VAG-COM Discussion
3
06-23-2006 08:00 PM
whoizrob
VAG-COM Discussion
0
12-11-2004 09:22 PM
Audone
A4 (B5 Platform) Discussion
0
10-12-2004 11:48 AM
Audi2ptzero
A4 (B5 Platform) Discussion
4
09-07-2004 10:59 AM



Quick Reply: X-Post: For those uber tuner folks....



All times are GMT -8. The time now is 05:41 PM.