Ms3 MS3x on a MSM - Page 2 - 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 05-03-2012, 11:14 AM   #21
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,846
Total Cats: 1,787
Default

4S looks to go directly to the battery, 4AF is behind the main relay.
Braineack is offline   Reply With Quote
Old 05-03-2012, 11:19 AM   #22
Senior Member
 
Join Date: Nov 2007
Location: Belgium
Posts: 939
Total Cats: 59
Default

Quote:
Originally Posted by ianferrell View Post
... 4s is key switch on power, 4AF is in fact a red/white that doesn't have power till you ground 3h to turn the main relay on.
I have no '04 wiring diagram, so can't check, but from this I understood that 4S is power when ign is turned on?

If 4S is battery and 4AF only turns on when 3H has been grounded by the MS, how do you turn on the MS?
WestfieldMX5 is offline   Reply With Quote
Old 05-03-2012, 11:27 AM   #23
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,846
Total Cats: 1,787
Default

here.

Attached Thumbnails
Ms3 MS3x on a MSM-msm_wiring.jpg  
Braineack is offline   Reply With Quote
Old 05-03-2012, 12:07 PM   #24
Senior Member
 
Join Date: Nov 2007
Location: Belgium
Posts: 939
Total Cats: 59
Default

thx, all clear now.
4S is indeed 12V ign and 3H needs to be ground to turn on the main relay (which feeds the fuel pump relay, injectors, valves and sensors).
I'll add this information to my how-to.
Is this for all 01-05's ?
WestfieldMX5 is offline   Reply With Quote
Old 05-20-2012, 01:45 PM   #25
Senior Member
Thread Starter
 
Join Date: Aug 2010
Location: Maumelle, AR
Posts: 618
Total Cats: 2
Default

4t is vref from the alt, if i'd realized that I would have use it for the alt circuit.

On another note, on the MSMs there is a 2nd IAT which is on pin 4R, (I'm going to tap into those wires and run a GM open IAT).

Btw, got the car running pretty well, used the diyautotune 99 map. Stock msm ecu is so crappy, once I get the ebc wired up this car will be completely transformed, and even more awesome in bsp :-)

I would also like to add that setting the zero crossing pots is a bit of a pita. The suggested adjustment didn't work, got the old dmm out and set them and sync is great now.

Last edited by ianferrell; 05-22-2012 at 10:29 PM.
ianferrell is offline   Reply With Quote
Old 05-24-2012, 04:44 PM   #26
Senior Member
Thread Starter
 
Join Date: Aug 2010
Location: Maumelle, AR
Posts: 618
Total Cats: 2
Default

Fun anecdote... Apparently ms3 has a VSS based AC disable. I apparently managed to set that set to 40mph without realzing it, lol. So until I can get to the car again his ac only works below 32mph or so as I neglected to set the tire diameter right. lololol.
ianferrell is offline   Reply With Quote
Old 05-24-2012, 04:45 PM   #27
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,846
Total Cats: 1,787
Default

yeah VVS or TPS. I turn mine off above 80% tps or something.
Braineack is offline   Reply With Quote
Old 05-25-2012, 03:06 AM   #28
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,440
Total Cats: 198
Default

Which reminds me...why on earth did they put a TPS % to stop the cooling fan???
Reverant is offline   Reply With Quote
Old 05-25-2012, 09:30 AM   #29
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,846
Total Cats: 1,787
Default

legitmate use of: because racecar.

IIRC some drag racers wanted the function.
Braineack is offline   Reply With Quote
Old 05-25-2012, 10:08 AM   #30
Ben
Supporting Vendor
iTrader: (33)
 
Ben's Avatar
 
Join Date: Jul 2006
Location: atlanta-ish
Posts: 12,689
Total Cats: 99
Default

Quote:
Originally Posted by Reverant View Post
Which reminds me...why on earth did they put a TPS % to stop the cooling fan???
User request from bracket racers IIRC.
Ben is offline   Reply With Quote
Old 05-31-2012, 12:43 AM   #31
Senior Member
Thread Starter
 
Join Date: Aug 2010
Location: Maumelle, AR
Posts: 618
Total Cats: 2
Default

So.... as it turns out, e85 with rx8 yellows on a mazdaspeed are definitely on the edge if you want to max out the turbo. I was seeing around 100% duty at 11.8:1 AFR (gas scale) at 6k rpm at 170kpa with 85 degree mat temps. GM Mat installed in begi intake elbow (right before TB basically).... So for blytheville it'll be ok cause its gonna be 900 thousand degress out there, but if he wants to drive it hard at night AFR safety system might rain on the fun.... Until they put some bigger injectors in it anyway.
ianferrell is offline   Reply With Quote
Old 05-31-2012, 06:11 PM   #32
Senior Member
 
Join Date: Nov 2007
Location: Belgium
Posts: 939
Total Cats: 59
Default

Quote:
Originally Posted by ianferrell View Post
4t is vref from the alt, if i'd realized that I would have use it for the alt circuit.
Not 3M?
WestfieldMX5 is offline   Reply With Quote
Old 12-03-2012, 12:06 AM   #33
Newb
 
Join Date: Aug 2009
Posts: 4
Total Cats: 0
Default

By any chance does one of you have a base map for the msm I could use? I'm about to install a msm motor once I finish my ms3x.
kevcov is offline   Reply With Quote
Old 12-03-2012, 01:26 AM   #34
Slowest Progress Ever
iTrader: (26)
 
thirdgen's Avatar
 
Join Date: Oct 2007
Location: The coal ridden hills of Pennsylvania
Posts: 5,806
Total Cats: 183
Default

Quote:
Originally Posted by Braineack View Post
legitmate use of: because racecar.
I seriously just laughed so hard I semi choked and started coughing.
Aside from that, all this MS3 talk is making me want to ditch my ms2.
thirdgen is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Buzzing from driver side of engine bay? (MS3 install) nick470 MEGAsquirt 7 06-16-2017 02:53 PM
My solution for Oiltemp and Oilpressure input into Megasuirt (MS3) Zaphod MEGAsquirt 41 01-24-2016 01:25 PM
WTB MP62 (Hotside) (NB2) Rick02R WTB 3 01-03-2016 08:18 PM
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 12:04 PM
Another Alternator thread ihiryu General Miata Chat 9 09-28-2015 11:22 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 07:56 PM.