Critique my first tune - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


MEGAsquirt A place to collectively sort out this megasquirt gizmo

Reply
 
 
 
LinkBack Thread Tools
Old 10-08-2011, 11:50 AM   #1
Senior Member
Thread Starter
iTrader: (2)
 
Join Date: Aug 2010
Posts: 639
Total Cats: 2
Default Critique my first tune

call me a a dumbass whatever i just dont care
i've been working on this for weeks now (yes it was the diy facebook sale)
i made my more precise progress after i finally got my wideband last week
I have been doing alot of reading
Alot of driving (damn it costs a lot of fuel to learn this ****)
I am learning to tune now as my goals are to put a small turbo on my 1.6 next spring and in a few years put a really nice system on my 1.8 drivetrain sitting in my garage

my only mods are the diypnp (obviously) afm delete, gm open element iat sensor. mtx-l wideband and a light flywheed

I think I finally have a rough fuel table that is really close to producing satisifiable afr's. of course it still needs some fine tuning
This thread is so that those with experience (i have no friends who even know the first thing about tuning) can look over my work and critique it

i have uploaded my tune (which has not been edited between any of the data logs) and 5 logs from the same day. the ones that say cold in them were when i started the motor after it had been sitting (though of course you can read the clt) and the others were fully warm from the start of the log. the .msl's that have been zipped aren't massive, they are just slightly over the mb limit.

the .msl titled look at me was me trying to get the one and only problematic lean spot to show its face. there is a marker. sometimes it goes even leaner in that spot that the log shows. it can often max out the o2 reading.
so what should i do about that? manually richen it up? although often it runs fine in that spot as well and when i richen it ve just puts it right back to where it is.

other than that in all the logs i am very satisified with the afr's except for on of them, the fromadamscold one. it is often in that .msl holding steady in the low fifteens when there is nothing leaner than 14.7 in my afr tables (i took the 15.5's out of diys base because for my particular style i didnt like exactly where they were at and plus i wanted to have just 14.7 for easier learning)

and yes i know there is a huge spike in the fuel table in low rpm/high kpa that ve analyze keeps wanting to put in there. so i should take that out, make it smooth and leave it as is? and yes i know i shouldn't be letting ve analyze messing with such low rpms but since i switched operating systems i forgot to change that back and i wanted to leave the tune i used un-edited for you to see.

Name:  Screenshot-1-1.png
Views: 1
Size:  180.7 KB

Name:  Screenshot-2.png
Views: 1
Size:  137.6 KB

this screenshot of an .msl is from the lookatme datalog
Name:  Screenshot-1.png
Views: 1
Size:  168.8 KB

yes it is a rought tune and still has work to be done
im looking for a critique for my work so far

thanks for reading
jared
Attached Files
File Type: msq CurrentTune.msq (76.9 KB, 69 views)
File Type: msl lookatme.msl (1.48 MB, 96 views)
File Type: zip 2011-10-07_13.53.03.msl.zip (356.8 KB, 30 views)
File Type: zip coldstartfrombeckys.zip (244.5 KB, 40 views)
File Type: msl tobeckys.msl (1.89 MB, 95 views)
File Type: zip fromadamscold.zip (266.4 KB, 36 views)

Last edited by jared8783; 10-08-2011 at 12:05 PM.
jared8783 is offline   Reply With Quote
Old 10-08-2011, 04:24 PM   #2
Junior Member
 
Join Date: Sep 2010
Location: SFL
Posts: 376
Total Cats: 3
Default

Quote:
Originally Posted by jared8783 View Post
call me a a dumbass whatever i just dont care
i've been working on this for weeks now (yes it was the diy facebook sale)
i made my more precise progress after i finally got my wideband last week
I have been doing alot of reading
Alot of driving (damn it costs a lot of fuel to learn this ****)
I am learning to tune now as my goals are to put a small turbo on my 1.6 next spring and in a few years put a really nice system on my 1.8 drivetrain sitting in my garage

my only mods are the diypnp (obviously) afm delete, gm open element iat sensor. mtx-l wideband and a light flywheed

I think I finally have a rough fuel table that is really close to producing satisifiable afr's. of course it still needs some fine tuning
This thread is so that those with experience (i have no friends who even know the first thing about tuning) can look over my work and critique it

i have uploaded my tune (which has not been edited between any of the data logs) and 5 logs from the same day. the ones that say cold in them were when i started the motor after it had been sitting (though of course you can read the clt) and the others were fully warm from the start of the log. the .msl's that have been zipped aren't massive, they are just slightly over the mb limit.

the .msl titled look at me was me trying to get the one and only problematic lean spot to show its face. there is a marker. sometimes it goes even leaner in that spot that the log shows. it can often max out the o2 reading.
so what should i do about that? manually richen it up? although often it runs fine in that spot as well and when i richen it ve just puts it right back to where it is.

other than that in all the logs i am very satisified with the afr's except for on of them, the fromadamscold one. it is often in that .msl holding steady in the low fifteens when there is nothing leaner than 14.7 in my afr tables (i took the 15.5's out of diys base because for my particular style i didnt like exactly where they were at and plus i wanted to have just 14.7 for easier learning)

and yes i know there is a huge spike in the fuel table in low rpm/high kpa that ve analyze keeps wanting to put in there. so i should take that out, make it smooth and leave it as is? and yes i know i shouldn't be letting ve analyze messing with such low rpms but since i switched operating systems i forgot to change that back and i wanted to leave the tune i used un-edited for you to see.






this screenshot of an .msl is from the lookatme datalog


yes it is a rought tune and still has work to be done
im looking for a critique for my work so far

thanks for reading
jared
it puts it there because when you tip in to the throttle it goes lean, this is where your AE tuning comes in, eliminate the spike in the VE and tune your AE till it smooths out the lean spike.
MD323 is offline   Reply With Quote
Old 10-08-2011, 05:51 PM   #3
Senior Member
Thread Starter
iTrader: (2)
 
Join Date: Aug 2010
Posts: 639
Total Cats: 2
Default

Quote:
Originally Posted by MD323 View Post
it puts it there because when you tip in to the throttle it goes lean, this is where your AE tuning comes in, eliminate the spike in the VE and tune your AE till it smooths out the lean spike.
cool thanks ill look into that further
i am aware of the accel enrichment but an unaware on how exactly to fine tune that so i haven't messed with it yet

i must do more readings

another question
in this screenshot i am cruising between 50-55
why is the afr so unsteady?
why is the gego going up and down probably causing the unsteadiness
Name:  Screenshot-3.png
Views: 1
Size:  170.7 KB
jared8783 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 AM
In need of base map for stock 1997 brandonbkd MEGAsquirt 0 09-29-2015 12:52 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 08:42 AM.