Help with my tune please? - 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 05-19-2016, 01:41 AM   #1
Newb
Thread Starter
 
Join Date: Dec 2014
Location: Indiana
Posts: 13
Total Cats: 0
Default Help with my tune please?

First off, I'm obviously new to Megasquirt. Here is where I'm at... 99 1.8l with FM 4.2 turbo kit, DW700cc injectors and MS diypnp built myself. After doing a lot of searching and reading, I've got it running to a drivable state. I know that it is currently running way too rich, just being safe til I'm more confident. I've already worked through a fair share of problems I didn't want to bother people with. Now I'm just looking for some feedback on any and all aspects of where I'm at. Also I have not autotuned this yet. I attached my msq and a short datalog.
Thanks in advance!
Attached Files
File Type: msl 2016-05-18_21.23.55.msl (1.12 MB, 13 views)
File Type: msq CurrentTune.msq (112.2 KB, 19 views)
mjleonard is offline   Reply With Quote
Old 05-19-2016, 03:01 AM   #2
Newb
 
Join Date: Mar 2012
Posts: 42
Total Cats: 0
Default

Without looking at the file I'd say autotune, get it close, then see what issues you have (running lean when you stab quickly at the throttle means you need to tune acceleration enrichment, lean/rich with changing temperature means you need to tune MAT correction table). I also recommend if you can grabbing a 32 gb SD card and setting up logging to it so you can pull logs and review both to compare (say compare a drive you took when it was really cold out vs a day that's hot ) and review issues you may have while not running data logging on a laptop.
compuw22c is offline   Reply With Quote
Old 05-19-2016, 03:31 AM   #3
Newb
Thread Starter
 
Join Date: Dec 2014
Location: Indiana
Posts: 13
Total Cats: 0
Default

Weather is supposed to be decent today. I'll try to autotune and post an updated msq and datalog this evening.
mjleonard is offline   Reply With Quote
Old 05-19-2016, 04:04 AM   #4
Junior Member
 
Join Date: Jun 2015
Location: VIC, Australia
Posts: 105
Total Cats: 13
Default

From a quick look you have a few things you should fix
1. Your AFR target table only goes to 100kPa.
2. Sort out closed-loop idle
3. Turn on overrun fuel cut
4. Adjust accel enrich TPSdot threshold


Barton is offline   Reply With Quote
Old 05-19-2016, 05:21 AM   #5
Newb
Thread Starter
 
Join Date: Dec 2014
Location: Indiana
Posts: 13
Total Cats: 0
Default

I forgot to adjust the scales when i last loaded that base map. Thanks for pointing that out! I've worked on closed loop a little with not much luck yet (starts and dies immediately). Do I need closed loop on a car that has no power options? I had overrun turned off because I was planning to autotune. I read somewhere to turn it off during. Are there ~typical~ settings for closed loop, overrun fuel cut, and AE? I haven't been able to find much on these.
mjleonard is offline   Reply With Quote
Old 05-19-2016, 05:29 AM   #6
Junior Member
 
Join Date: Jun 2015
Location: VIC, Australia
Posts: 105
Total Cats: 13
Default

You don't need closed-loop idle but it's good to have setup so that your idle remains constant under different conditions. There are quite a few threads explaining how to set it up. Set the TPSdot threshold as low as possible without it triggering when there is no throttle movement. Settings will vary from car to car.
Barton is offline   Reply With Quote
Old 05-19-2016, 06:18 AM   #7
Junior Member
 
Join Date: Jun 2015
Location: VIC, Australia
Posts: 105
Total Cats: 13
Default

I've uploaded an adjusted .msq file for you with closed-loop idle settings, new TPSdot threshold and a new AFR table. Settings probably won't be perfect but might give you a good starting point. Obviously check over it before using it ect.
Attached Files
File Type: msq 2016-05-19_19.15.59.msq (111.5 KB, 32 views)
Barton is offline   Reply With Quote
Old 05-19-2016, 06:45 AM   #8
Newb
Thread Starter
 
Join Date: Dec 2014
Location: Indiana
Posts: 13
Total Cats: 0
Default

Quote:
Originally Posted by Barton View Post
I've uploaded an adjusted .msq file for you with closed-loop idle settings, new TPSdot threshold and a new AFR table. Settings probably won't be perfect but might give you a good starting point. Obviously check over it before using it ect.
Awesome! I'll look it over and try it out later today.
mjleonard is offline   Reply With Quote
Old 05-20-2016, 03:07 AM   #9
Newb
Thread Starter
 
Join Date: Dec 2014
Location: Indiana
Posts: 13
Total Cats: 0
Default

I loaded the updated msq and autotuned while driving for about 20 minutes (didn't have much time today). Took out a little fuel beforehand. I haven't had time to look over the dadalog I made after autotuning. Still rich on hard pulls and idle is still a little shaky, but atleast closed loop is working. Just needs tweeked. Does my timing table look ok? Here is the latest datalog and msq...
2016-05-19_12.18.18.msl 2016-05-20_01.25.25.msq
mjleonard is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Garage clean up...15x7 rpf1, hks turbo kit,... zrookie Miata parts for sale/trade 25 04-25-2016 03:55 PM
Cheap 1.8 turbo kit, 96-97 link ECU, FM Tokico Illumina, FM sways, RB intake yxy123456 Miata parts for sale/trade 10 04-19-2016 12:14 PM
ACT Clutch kit, ACT Prolite, ATI Damper, Built Motor/head, stock parts Alpod Miata parts for sale/trade 12 04-08-2016 06:11 PM
1.8 BEGI Turbo Kit, Xedi Engine Management, 3" Exhaust AdrianD2 Miata parts for sale/trade 4 04-03-2016 10:27 PM
begi shanghai turbo kit (1.6) and mspnp9093 (white case) Lanceam24 Miata parts for sale/trade 9 03-11-2016 10:08 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 01:18 AM.