Why are my datalogs so inconsistant? - 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 04-08-2014, 09:19 PM   #1
Elite Member
Thread Starter
iTrader: (9)
 
Join Date: Sep 2008
Location: Livonia, Michigan
Posts: 5,683
Total Cats: 10
Default Why are my datalogs so inconsistant?

I have been collecting lots of logs lately in order to have a decent tune. I usually collect them around the same time every day, coming and going from school. I've noticed that I do not get consistent numbers, specially with boost. Sometimes I see 14.5 psi but most of the times I see 12 to 13 psi. I wonder if this is the nature of the internal wastegate, which is supposedly set at 15 psi, or is there something going on with the hardware/software.

I am attaching some logs for comparison. However, I just noticed that the time I saw 202Kpa was while using tuner studios, but it can be seen that I do not seem to hold boost up top.

Of note, the signal that the waste gate is seeing is post IC.
Attached Files
File Type: msl 2014-04-08_19.32.54 gear 3.msl (128.3 KB, 26 views)
File Type: msl 2014-04-08_11.46.53 gear 3.msl (47.7 KB, 28 views)
File Type: msl 2014-04-03_18.35.02 gear 2 onto 3.msl (55.3 KB, 41 views)
buffon01 is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM
Any AE tuning tips from you gurus? ThePass MEGAsquirt 11 05-21-2008 04:00 PM
Inconsistent a/f with emu OldAndInTheWay E-Manage 0 01-02-2008 11:02 PM
Datalogging with a Palm...it CAN be done! Atlanta93LE MEGAsquirt 96 10-27-2007 12:09 PM
Questions on my approach to tuning EMB 924_nick E-Manage 0 09-03-2007 01:45 PM


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 04:00 PM.