Parts needed to upgrade MS1 to MS3x? - 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 03-07-2012, 01:25 AM   #1
Elite Member
Thread Starter
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default Parts needed to upgrade MS1 to MS3x?

I'm about to pull the trigger on everything I need for MS3x. Current setup is a Brainybuilt piggyback 90-93 MS1 with boost control and a fan control added. I will be going full standalone with MS3x. I can add in the wires to the Xdb37 myself.

I need all of this, right?

1 x DB37 solder cup connector for MS3X
1 x MegaSquirt-III daughterboard kit
1 x MegaSquirt-III MS3X Expansion Card
1 x MegaSquirt-III V3.0 Black Anodized Case

Anything else? What about the screws for fastening the MS3 daughtercard down shown here?

My setup will be a VVT head and NB sensors with LS2 truck coils running full sequential in my 92.

Last edited by Bryce; 03-07-2012 at 06:06 AM.
Bryce is offline   Reply With Quote
Old 03-07-2012, 06:04 AM   #2
Elite Member
Thread Starter
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

Also, this looks tempting: 1 x MegaSquirt 3X Wiring Bundle - 12' long
Bryce is offline   Reply With Quote
Old 03-07-2012, 10:17 AM   #3
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,899
Total Cats: 1,792
Default

looks like you got it. all you'd need to do to make it standalone is add the idle valve output out the db37 of the ms3x so it's running idle control into your current harness. then just keep the stock ecu off the harness.
Braineack is offline   Reply With Quote
Old 03-07-2012, 01:11 PM   #4
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 Bryce View Post
I'm about to pull the trigger on everything I need for MS3x. Current setup is a Brainybuilt piggyback 90-93 MS1 with boost control and a fan control added. I will be going full standalone with MS3x. I can add in the wires to the Xdb37 myself.

I need all of this, right?

1 x DB37 solder cup connector for MS3X
1 x MegaSquirt-III daughterboard kit
1 x MegaSquirt-III MS3X Expansion Card
1 x MegaSquirt-III V3.0 Black Anodized Case

Anything else? What about the screws for fastening the MS3 daughtercard down shown here?
Correct.
The screws are included with the MS3 daughterboard kit.
Ben is offline   Reply With Quote
Old 03-07-2012, 02:38 PM   #5
Elite Member
Thread Starter
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

Thanks. Ordered!
Bryce is offline   Reply With Quote
Old 03-12-2012, 05:29 AM   #6
Elite Member
Thread Starter
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

I hope this can become an conclusive thread for those wishing to upgrade to MS3/MS3X.

I shall be using the following directions, but have a question and possibly a correction for them.

1: If I do the mods below, pop in the ms3 card, fiddle with the software some, it should work in my stock batch-firing configuration with the stock CAS, right?
2: And then if I wire the NB crank and cam sensors to the CAS plug and change the timing settings? I read that the NB CKP and CMP outputs are electrically identical to the CAS outputs, besides the number of teeth.
When I say work, I mean fuel and spark. Obviously my IAC isn't going to work if I don't have provisions for it on the mainboard(Thats what the expander card will be there for ).

3: In the second picture, I need to remove the jumper from tachselect to optoin? (Its not jumpered in the picture, but it is on my board) I'm thinking this was an implicit step.



4: Do I also need to connect S12C and JS9 to get 12V to the daughtercard? According to the MS3 build step 23 (http://msextra.com/doc/ms3/build_manual.html), I do.

More questions later.
Attached Thumbnails
Parts needed to upgrade MS1 to MS3x?-dsc_0001_mods.jpg   Parts needed to upgrade MS1 to MS3x?-dsc_0003_mods.jpg  
Bryce is offline   Reply With Quote
Old 03-12-2012, 10:46 AM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,899
Total Cats: 1,792
Default

1. yes. Do those mods and you can run the ms3x and run spark/fuel (and everything else) through current the mainboard outputs.

2. It should tehcincally work, but you'd want to bring the cmk signal into the MS3x cam in input--it's a much better input.

Then it's important the polarity of the signals are both the same, where you might have to move the green wire stuff back to how it was for MSI (tachselect to optoin, xg1 to xg2, and jump d1 and d2 again).

I really can't remember which method is the correct polarity to match the cam in through the ms3x card...you'll easily figure it out when you run the composite logger.

In both cases, you'd remove the red and purple wires seen above, that's replaced my the ms3x input.

And r12 doesnt really need to be changed at all, it can stay the 390ohm that was supplied regardless.

Best case, you'd use the VR w/pullup input for the ckp signal instead of the opto circuit if you have it populated.

3. yes, it goes to xg1 now instead.

4. yes, this allows anything on the js0-js4 to work and gives the ms3x card it's pull-ups to 12v.
Braineack is offline   Reply With Quote
Old 03-15-2012, 01:50 PM   #8
Elite Member
Thread Starter
iTrader: (24)
 
Join Date: Jul 2007
Location: Cypress, TX
Posts: 3,778
Total Cats: 35
Default

Edit: Made a new thread for the sync error here:
https://www.miataturbo.net/showthrea...623#post848623
Attached Thumbnails
Parts needed to upgrade MS1 to MS3x?-firstcomplog.jpg  

Last edited by Bryce; 03-15-2012 at 02:05 PM.
Bryce is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
91 1.6l turbo complete part out. Tony the Tiger Miata parts for sale/trade 63 12-29-2016 03:23 AM
Mazdaspeed 2.0L C-Spec ITB motor w/ accessories graexodus Miata parts for sale/trade 9 10-25-2015 04:34 PM
The "other" spool question stefanst DIY Turbo Discussion 44 09-28-2015 08:16 PM
Squiblez 1996 Montego blue Squiblez Build Threads 2 09-22-2015 11:17 AM
WTB parts for HPDE car Voltwings WTB 5 09-11-2015 09:23 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 06:47 PM.