Notices
Evo General Discuss any generalized technical Evo related topics that may not fit into the other forums. Please do not post tech and rumor threads here.
Sponsored by: RavSpec - JDM Wheels Central

smoother shifts

Thread Tools
 
Search this Thread
 
Old Dec 5, 2019 | 12:54 PM
  #16  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
This isn't really a fast process, it takes a bunch of driving and cruising to get all the cells dialed in. For example it took me like two weeks of DD logging and adjusting to get my trims dialed in after I rescaled my injectors.
Old Dec 5, 2019 | 01:14 PM
  #17  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
Originally Posted by Biggiesacks
the changes your making should only effect the lower load areas. LTFT Mid only learns up to like 250 which shouldn't be corresponding to areas with boost. LTFT Mid can effect global fueling, so if you tuned high load areas with some kind of ltft mid set then you may have tuned over that and it will need to be ironed out.
Or likewise if you tuned before with 0 ltft and now have a + or - value that could be effecting your tune.
Old Dec 5, 2019 | 04:48 PM
  #18  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
yeah in the daytime my trims were -0.xxxxx...now at night low 3.xxx and mid -0.xxxx...Main problem im having now is knock from 3000 rpm - 42000 rpm in low boost areas due to what i beleive being rich from having load higher than kpa at 101kpa. As you can see 3500 - 4000 rpm ve needs to go down but if i do that then initial peak boost goes way lean. the fix for lean take off messes everything up. Im going to drive you crazy biggie lol. I do appreciate your help though man...thank you...btw, introducing small amounts of accel enrich helps a bit now that trims are getting under control.




Old Dec 5, 2019 | 05:37 PM
  #19  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
I wonder what if I do it the other way? Put map ve normal and give it a lot of rpm ve to try and get rid of lean take off. Wonder if anyone has done it this way?
Old Dec 5, 2019 | 08:20 PM
  #20  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
Could you post a log of your lean take off and this rich map trace you posted.
Old Dec 5, 2019 | 08:35 PM
  #21  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
Heres is the log of the map trace i posted up top. The lean take off, i have to log because i have so many logs i dont even know whats what right now.
Attached Files
Old Dec 6, 2019 | 08:04 AM
  #22  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
looking over the log it definitely seems to me that you have too much throttle enrichment. Maybe try dialing that back a bit. If your LTFT Mid is 0.X during a lean take off you can try adding fuel into the fuel map in that area and see if it helps. I assume you have "lean spool" disabled? If you are running lean spool you could probably reduce the amount of fuel its pulling out, or disable it.
Old Dec 6, 2019 | 08:51 AM
  #23  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
Lean spool is disabled. I put the enrichment tables back to stock and just bumped it on or two times in take off area. Thing is if I add fuel to 500 - 1000rpm then it messes up idle but if I add to 101kpa again which is at 107 load then it’s impossible to control how rich it gets. I’m already having a hard time figuring out how to lean out those areas.
Old Dec 6, 2019 | 09:11 AM
  #24  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
500-1000 is extremely low airflow so large injectors are going to be super sensitive in that area. If the VE tables are too blunt you could try adding MAF Comp in the airflow areas you are going lean and see if that helps. You can also mess around with injector latency which will be pretty potent at those very low Injector pulse widths. If you mess with latency though you will need to touch up the rest of the tune to compensate, less so at higher loads.
Old Dec 6, 2019 | 12:39 PM
  #25  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
But I thought one was not supposed to touch latency with stock injectors. I’m still rocking the stockers.
Old Dec 6, 2019 | 12:52 PM
  #26  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
Originally Posted by nor11384
But I thought one was not supposed to touch latency with stock injectors. I’m still rocking the stockers.

Oh ok sorry, thats a different story. Keep those latencies and injector scalings stock then.
Old Dec 7, 2019 | 10:46 AM
  #27  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
Biggie, how can you see throttle and accel enrichment in the log? I know there’s a way to log it but I’ve looked and can’t find it.
Old Dec 7, 2019 | 11:13 AM
  #28  
Biggiesacks's Avatar
EvoM Community Team Leader
 
Joined: Aug 2005
Posts: 5,688
Likes: 704
From: West Coast
Originally Posted by nor11384
Biggie, how can you see throttle and accel enrichment in the log? I know there’s a way to log it but I’ve looked and can’t find it.
I don't actually know if there is a way to specifically log that adder. If you dig into mrfreds advanced fuel thread he might have the MUT address for it, or the memory address to add it to the mut table. The way I was reading the log was just looking for when you pressed down on the throttle and then what the AFR's did after you did that.
Old Dec 7, 2019 | 12:02 PM
  #29  
nor11384's Avatar
Thread Starter
Evolved Member
FCOTM Winner
iTrader: (1)
 
Joined: Jan 2009
Posts: 1,131
Likes: 34
From: tampa, fl
Ah ok I see. I’ll see what I can find. I know I saw a post one time about logging accel enrich.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
Dr. Jekyll
Evo X Engine Management / Tuning Forums
3
Apr 1, 2016 09:42 AM
Seancj
ECU Flash
4
Jul 9, 2015 02:14 PM
RoadSpike
ECU Flash
9
Jun 29, 2010 04:48 PM
silver_evo
ECU Flash
6
Jul 28, 2008 10:05 PM
Ted B
ECU Flash
46
Mar 9, 2008 06:53 PM




All times are GMT -7. The time now is 03:25 AM.