550cc injector crew: ITT you will post your cold-start 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 02-18-2010, 10:52 AM   #1
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default 550cc injector crew: ITT you will post your cold-start tables

Thanks. I'm, tired of fouling plugs below 55*f, so please only post if you're tuned at and below that #.
I could "just tune it" but my battery is dying and I don't have much time so I'd rather let you do all the work for me while I demand answers. You may also post LINKED nudes of your girlfriends in here.

edit: stock FPR too, preferably with a Walbro 225.
hustler is offline   Reply With Quote
Old 02-18-2010, 10:55 AM   #2
meatbag
iTrader: (50)
 
gospeed81's Avatar
 
Join Date: Nov 2008
Location: Houston, TX
Posts: 7,357
Total Cats: 26
Default

just in time, my 550s come in this week, and I don't want to fight issues that you've been stressing over already, so I'll just read the answers you garner.

subscribed for nudes as well
gospeed81 is offline   Reply With Quote
Old 02-18-2010, 11:02 AM   #3
Senior Member
iTrader: (1)
 
Join Date: Sep 2007
Location: Trenton, NJ
Posts: 1,125
Total Cats: 0
Default

At work now without my laptop. Once I get home I'll post the numbers. I'm running 550's with a walboro 190 and toyota COPs. I started the car up the other day with no problems and it was about 30 degrees out.
ArtieParty is offline   Reply With Quote
Old 02-18-2010, 11:30 AM   #4
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

Shouldn't be a big deal with cold starts and 550cc injectors. Are you simply injecting too much fuel during cranking?

Finding a good VE Cell for the ASE fixed map timer is key to a good idle off the bat, then just tune the WU **** by hand. I guess it helps that I would lug the laptop out with me each morning to get it right.

FWIW, I would run ASE for 15 seconds, and a fixed MAP time period of 5 seconds.
Braineack is offline   Reply With Quote
Old 02-18-2010, 11:42 AM   #5
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default



those are ms/10 so add a zero or something.

RC550 low impedance
stock 2001 fuel pressure of uhh 53-61 psi per manual.
Attached Thumbnails
550cc injector crew: ITT you will post your cold-start tables-cranking.png  
y8s is offline   Reply With Quote
Old 02-18-2010, 12:21 PM   #6
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

E is not my broblem, it's cranking. I could Jack with it but rme is not on my side knight. I fly in at 9, must bang the gf, fix th fuel rail, pick up the trailer, then fix cold start, then have the gf BEng me Belgian beer in bed while I recieved oral.
hustler is offline   Reply With Quote
Old 02-18-2010, 12:40 PM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

I'd give you my numbers scaled for a 1.8L and 550s but I use 14.7 as my AFR multiper to get the required fuel, not 12.7 or whatever DIY uses.
Braineack is offline   Reply With Quote
Old 02-18-2010, 02:00 PM   #8
Senior Member
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

@Brain - what values are you using now with MS2? (on your 1,6 with 460cc irc)

Do you do sequential injection?
Zaphod is offline   Reply With Quote
Old 02-18-2010, 02:10 PM   #9
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

not sequential. I'll have to upload my MSQ later. It's been starting and idling beautifully (with oem aic) in 20*F weather.
Braineack is offline   Reply With Quote
Old 02-18-2010, 02:34 PM   #10
Elite Member
iTrader: (30)
 
Join Date: Aug 2007
Location: Va Beach
Posts: 7,282
Total Cats: 0
Default

My IAC is unplugged, 190 walbro and was 49* this morning.


__________________
Best Car Insurance | Auto Protection Today | FREE Trade-In Quote
levnubhin is offline   Reply With Quote
Old 02-18-2010, 04:50 PM   #11
y8s
2 Props,3 Dildos,& 1 Cat
iTrader: (8)
 
y8s's Avatar
 
Join Date: Jun 2005
Location: Fake Virginia
Posts: 19,038
Total Cats: 406
Default

i stand by my values down to 15F. and I meant subtract a zero.
y8s is offline   Reply With Quote
Old 02-19-2010, 12:55 AM   #12
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

wtf.my table is leaner than yours and my car won't start when cold:

maybe its my hyper-fucked ASE table
hustler is offline   Reply With Quote
Old 02-19-2010, 02:53 AM   #13
Senior Member
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

Quote:
Originally Posted by hustler View Post
wtf.my table is leaner than yours and my car won't start when cold:
Maybe that is why...?
Zaphod is offline   Reply With Quote
Old 02-19-2010, 05:55 AM   #14
Elite Member
iTrader: (1)
 
Join Date: Jun 2006
Location: Warrington/Birmingham
Posts: 2,658
Total Cats: 39
Default

Quote:
Originally Posted by Zaphod View Post
Maybe that is why...?
exactly!
richyvrlimited is offline   Reply With Quote
Old 02-19-2010, 09:55 AM   #15
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Zaphod View Post
Maybe that is why...?
but it fouls plugs and they're wet with fuel when I take them out.
hustler is offline   Reply With Quote
Old 02-19-2010, 10:01 AM   #16
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

change your "fixed when below" to 80*, fixed map valve under ASE to 60, and the timer to 5 seconds. just try that. your ASE table seems to be pretty much disabled... Look how mine is set:






what's your REQ_FUEL value? acutally, can you post your MSQ.
Braineack is offline   Reply With Quote
Old 02-19-2010, 10:08 AM   #17
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

I can email or you can point me to a host.

req_fuel is 5.7
hustler is offline   Reply With Quote
Old 02-19-2010, 10:10 AM   #18
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Please explain the relationship between the 75kpa column value and the fixed-map value. I'm obviously a rock scientist.
hustler is offline   Reply With Quote
Old 02-19-2010, 10:22 AM   #19
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,833
Total Cats: 1,786
Default

if my coolant is under 80*F, for a period of 5 seconds, it fuels off a specific map value off my VE table. If you log at startup, you can see the MAP value holds flat and then decays out.

If you're map isn't tuned in the area, and you have too high or low a number, it'll run like **** during that period. That might be your problem.

Right now you don't even use that function as you're probably never under 20*f coolant, and then if you ever do, you're fueling for a period of 30 cycles at your 35 kPa map value, pretty much right where you always idle at. I find if I used to high or low of a map value right after I would start the car, especially when cold, it'd run like ******* until things stabilized.


you can attached your MSQ to a post.
Braineack is offline   Reply With Quote
Old 02-19-2010, 10:31 AM   #20
Tour de Franzia
Thread Starter
iTrader: (6)
 
hustler's Avatar
 
Join Date: Jun 2006
Location: Republic of Dallas
Posts: 29,114
Total Cats: 351
Default

Quote:
Originally Posted by Braineack View Post
if my coolant is under 80*F, for a period of 5 seconds, it fuels off a specific map value off my VE table. If you log at startup, you can see the MAP value holds flat and then decays out.

If you're map isn't tuned in the area, and you have too high or low a number, it'll run like **** during that period. That might be your problem.

Right now you don't even use that function as you're probably never under 20*f coolant, and then if you ever do, you're fueling for a period of 30 cycles at your 35 kPa map value, pretty much right where you always idle at. I find if I used to high or low of a map value right after I would start the car, especially when cold, it'd run like ******* until things stabilized.


you can attached your MSQ to a post.
Thanks,
I'll make those adjustments.

Last edited by hustler; 07-06-2011 at 11:42 PM.
hustler is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 57 07-19-2017 05:11 PM
Changing from 460cc to flow force 610cc in diypnp 90 Turbo MEGAsquirt 19 10-19-2015 04:23 PM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 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 02:50 AM.