rough tables - 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 12-21-2014, 08:34 PM   #1
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 115
Total Cats: 1
Default rough tables

Can you show me your tables for referance. Idealy something a little conservative to get me started. I have 1.8bp. Td04 turbo rx8 injectors an a small intercooler. Running MS2 Looking for a few tables to get me started or at least to check I haven't made any major errors. Starts and runs well. Stutters badly when I hit boost about 0.4 bar. Eventually breaks through and powers on.
luke2152 is offline   Reply With Quote
Old 12-23-2014, 05:06 PM   #2
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 115
Total Cats: 1
Default

Well in absence of a response I'll post my msq up for now. If someone could give my tables a sanity check and also my AE settings and slap me if necessary. I want safe conservative tables for now. I'm also running extremely low boost (0.3bar) for now because I'm still working out how to get some cool air through my cooler.
I now suspect the stuttering is related to fuel surging back away from the pickup (even though I have a small surge tank just before the high pressure pump) because it only does it when accelerating hard. If I hold the car back with the brakes under full power it doesn't do it.
No my other problem is the acceleration enrichment - it can't seem to prevent it leaning out for a half second when I put my foot down even with quite aggressive (I thought) AE setting. Or maybe I'm just being a 'tard as normal and missing something obvious.
Attached Files
File Type: msq CurrentTune.msq (110.5 KB, 42 views)
luke2152 is offline   Reply With Quote
Old 12-23-2014, 08:12 PM   #3
Elite Member
iTrader: (5)
 
Erat's Avatar
 
Join Date: Oct 2011
Location: Detroit
Posts: 4,196
Total Cats: 260
Default

Just looking quickly.

Your AFR table looks funny but should be okay.

Surge tank? Dafug? What was wrong with the stock setup?

Your VE table looks like dick.
Turn on autotune and drive. Easy. Drive smooth and easy for a while burning and saving a lot. Gradually raise boost. IMHO run open wastegate at first.

Your timing table is the most conservative thing i've ever seen.

Maybe someone else can chime in. 380cc RX8 injectors are a thing?

Did you set and verify timing? Trigger wizard is at 0*
Erat is offline   Reply With Quote
Old 12-23-2014, 08:36 PM   #4
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 115
Total Cats: 1
Default

Ah well when I say surge tank remember its a kit/homebuilt car so very little stock stuff remains. Actually the stock setup is pretty good but doesn't fit in my car. Tank is 27 litres and I KNOW it has surge problems but thought a small surge tank would correct - I'm still unsure if thats the cause.
RX8 yellow injectors are said to be 420cc and good upgrade for not too crazy projects.
I did run it round for a while on autotune and that was the ve table it produced.
And yes i set timing

I picked the most conservative timing I could find online so was probably overly careful - care to share your own?
luke2152 is offline   Reply With Quote
Old 12-23-2014, 08:44 PM   #5
Elite Member
iTrader: (5)
 
Erat's Avatar
 
Join Date: Oct 2011
Location: Detroit
Posts: 4,196
Total Cats: 260
Default

While i can't comment on the surge tank / fuel issue, i do have issues with this:




Timing isn't your issue, here is mine still very conservative for reference.
Attached Thumbnails
rough tables-dafug-1.jpg   rough tables-spark.jpg  
Erat is offline   Reply With Quote
Old 12-23-2014, 08:54 PM   #6
Junior Member
Thread Starter
 
Join Date: Jun 2013
Posts: 115
Total Cats: 1
Default

If you mean the fact my timing is zero its because I turned the cam sensor until the light showed zero with zero fixed advance on the MS

If its with me calling the injectors 420cc and not 380cc I've only just noticed this an I'm going to look into it now! I can't remember what the seller told me they were and I have even less idea if its true. They are yellow rx8 for sure.

And thanks for the timing map if anything gives me an idea where to aim for
luke2152 is offline   Reply With Quote
Old 12-23-2014, 08:57 PM   #7
Elite Member
iTrader: (5)
 
Erat's Avatar
 
Join Date: Oct 2011
Location: Detroit
Posts: 4,196
Total Cats: 260
Default

No problem. Really, i'm probably one of the last people to ask for help on this site. I know just enough to get me into trouble and that's about it.
Erat is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Momo Supercup seat jpreston Miata parts for sale/trade 2 05-17-2016 01:51 AM
Odd Steering issue interestedofold Suspension, Brakes, Drivetrain 5 09-29-2015 02:42 PM
VE values too low? compuw22c MEGAsquirt 4 09-12-2015 08:42 PM
ME221 Now has Autotune and Long Term Fuel Trim Tables Motorsport-Electronics ECUs and Tuning 0 09-05-2015 09:02 AM
Help Rough Idle Backwoodsballer General Miata Chat 0 09-04-2015 07:39 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 03:05 PM.