Notices
MEGAsquirt A place to collectively sort out this megasquirt gizmo
View Poll Results: What do you tune with
Auto-tune
6
12.77%
MLV
22
46.81%
Change each cell 1 by 1
15
31.91%
I dont tune my shit, i pay people to.
4
8.51%
Voters: 47. You may not vote on this poll

How do you tune?

Thread Tools
 
Search this Thread
 
Old Aug 3, 2009 | 12:36 AM
  #1  
SKMetalworks's Avatar
Thread Starter
Elite Member
iTrader: (7)
 
Joined: Jan 2007
Posts: 1,731
Total Cats: 4
From: Renton Washington
Default How do you tune?

Im wondering how people tune their ****. I currently use MLV when the target tables transfer over from my MSQ. Sometimes the tables don't show up in MLV, so i use Autotune. I am just curious what other people use. What is the best to tune with?
Old Aug 3, 2009 | 01:05 AM
  #2  
jdmaddox88's Avatar
Junior Member
iTrader: (1)
 
Joined: Apr 2008
Posts: 289
Total Cats: -2
From: Atlanta, GA
Default

MLV up here, although I think my target table may be a bit off. Some day in the not so distant future I might either pay someone to tune or get some time on a dyno to do it myself.
Old Aug 3, 2009 | 01:16 AM
  #3  
hustler's Avatar
Tour de Franzia
iTrader: (6)
 
Joined: Jun 2006
Posts: 29,085
Total Cats: 375
From: Republic of Dallas
Default

a few mlv passes, then cell by cell. Spark on the dyno is cell by cell of course.
Old Aug 3, 2009 | 01:23 AM
  #4  
Savington's Avatar
Former Vendor
iTrader: (31)
 
Joined: Nov 2006
Posts: 15,442
Total Cats: 2,106
From: Sunnyvale, CA
Default

I start with a basemap that's close, then go cell by cell.
Old Aug 3, 2009 | 08:07 AM
  #5  
Joe Perez's Avatar
Boost Pope
iTrader: (8)
 
Joined: Sep 2005
Posts: 34,402
Total Cats: 7,523
From: Chicago. (The less-murder part.)
Default

I do the idle cells by hand, and will occasionally tweak others, but for the most part, MLV generated my fuel table.
Old Aug 3, 2009 | 08:57 AM
  #6  
magnamx-5's Avatar
:(
iTrader: (7)
 
Joined: Jul 2006
Posts: 8,255
Total Cats: 4
From: nowhere
Default

I tune by hand on the fly.
Old Aug 3, 2009 | 09:02 AM
  #7  
GrahamC's Avatar
Junior Member
iTrader: (4)
 
Joined: Jan 2009
Posts: 326
Total Cats: 11
From: Fife, Scotland
Default

How do you tune cell by cell?

I guess you guys are loading up your logged run in MLV and see where your actual AFR and target AFR is different, then change the cells?

Why is this better than letting MLV change them for you?
Old Aug 3, 2009 | 09:03 AM
  #8  
GrahamC's Avatar
Junior Member
iTrader: (4)
 
Joined: Jan 2009
Posts: 326
Total Cats: 11
From: Fife, Scotland
Default

Originally Posted by Joe Perez
I do the idle cells by hand, and will occasionally tweak others, but for the most part, MLV generated my fuel table.
This is what I do.
Old Aug 3, 2009 | 09:58 AM
  #9  
y8s's Avatar
y8s
DEI liberal femininity
iTrader: (8)
 
Joined: Jun 2005
Posts: 19,338
Total Cats: 574
From: Fake Virginia
Default

autotune for a few months of street driving.... verifying logs here and there every few days. really doesn't require any effort for me.
Old Aug 3, 2009 | 10:27 AM
  #10  
levnubhin's Avatar
Elite Member
iTrader: (30)
 
Joined: Aug 2007
Posts: 7,329
Total Cats: 12
From: Va Beach
Default

Originally Posted by magnamx-5
i tune by hand on the fly.

+1
__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
Old Aug 3, 2009 | 11:09 AM
  #11  
slowmx5's Avatar
Junior Member
 
Joined: Jul 2006
Posts: 157
Total Cats: 0
From: UK
Default

I use DLL. For the low map and cruise zones (upto 110kPa) I adjust each cell so that the VE table is a touch rich in that cell (say by 2%). For power tuning I carry out repeated WOT runs on the same stretch of road and adjust timing and fuel so that I achieve maximum area under the torque curve without knock. The water/meth injection makes this a little more complicated mid you.
Old Aug 3, 2009 | 08:46 PM
  #12  
SKMetalworks's Avatar
Thread Starter
Elite Member
iTrader: (7)
 
Joined: Jan 2007
Posts: 1,731
Total Cats: 4
From: Renton Washington
Default

Seems like a combination of MLV and changing cells is the easiest way to tune your AFR's. Thanks for all the input.
Old Aug 3, 2009 | 09:05 PM
  #13  
magnamx-5's Avatar
:(
iTrader: (7)
 
Joined: Jul 2006
Posts: 8,255
Total Cats: 4
From: nowhere
Default

Originally Posted by GrahamC
How do you tune cell by cell?

I guess you guys are loading up your logged run in MLV and see where your actual AFR and target AFR is different, then change the cells?

Why is this better than letting MLV change them for you?
Cause i get someone else to drive while im on a base map, andi adjust everything until it feels right. I've also done it with one hand on the keybaord between shifts but i dont like doing it like that it kinda makes you swerve alil from time to time, when you look at the screen. After the tunning session feels strong and consistent i pull over save it and take a log and just watch my readings in general to see if anything is out of whack. After i get home i pull the log and go over it second by second looking for anomalys that would or could present themselves as running problems.
Old Aug 3, 2009 | 10:31 PM
  #14  
Savington's Avatar
Former Vendor
iTrader: (31)
 
Joined: Nov 2006
Posts: 15,442
Total Cats: 2,106
From: Sunnyvale, CA
Default

Originally Posted by GrahamC

Why is this better than letting MLV change them for you?

Because you can get it right the first time if you know what you're doing.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
StratoBlue1109
Miata parts for sale/trade
21
Sep 30, 2018 01:09 PM
tazswing
Race Prep
20
Oct 3, 2015 11:04 AM
The Gleas
MEGAsquirt
3
Oct 1, 2015 09:30 AM
MiataGarage
Engine Performance
5
Sep 29, 2015 11:04 PM
brandonbkd
MEGAsquirt
0
Sep 28, 2015 11:52 PM




All times are GMT -4. The time now is 03:10 AM.