MS2 on 99/00 N/A - fuel only or fuel and spark...? - 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 11-12-2009, 02:59 AM   #1
Senior Member
Thread Starter
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Question MS2 on 99/00 N/A - fuel only or fuel and spark...?

Hi,

I didn't want to hijack the other 99/00 MS2 N/A thread so I do an extra one.

As I sold my old MS2 parallel setup to a friend running his 99/00 N/A I came to the following question:
(Just a remark to why he likes to be running on MS. He has displaced the Euro 1,6 99/00 with a 1,9 99/00 engine but is running on the old 1,6 ECU - so the engine is running rather rich and he isn't able to switch the VICS with the OEM 1,6 ECU. And maybe he is planning to go IRTB)

Should/Could I leave ignition at the OEM ECU - so the OEM knocksensor would still work? Or take the ignition also from the MS2 and loose the OEM knock-sensor.

I think I would still have to set the trigger angle - to get the fueling right, or not? (The angle doesn't change much with MS2 and OEM sensors anyway)

Thanks for your suggestions.

Greets
Zaphod is offline   Reply With Quote
Old 11-12-2009, 05:04 AM   #2
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,440
Total Cats: 198
Default

If he runs N/A, then leave the ignition alone. On NBs, the idle is controlled by both the idle valve as well as the ignition advance. These work in harmony, so if you switch the ignition to the MS the idle will oscillate with any load (A/C, headlights, any electrical load). Also, unless you add a knock circuit, there will be no knock retard. Btw the stock ignition advance is pretty good. Leave it there.

Jim
Reverant is offline   Reply With Quote
Old 11-12-2009, 08:09 AM   #3
Senior Member
Thread Starter
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

So that leaves the question - how do I set the timing with no ignition attached - or do I even have to? How is the injection timing handled?

Thanks
Zaphod is offline   Reply With Quote
Old 11-12-2009, 09:39 AM   #4
Supporting Vendor
iTrader: (10)
 
Reverant's Avatar
 
Join Date: Jun 2006
Location: Athens, Greece
Posts: 5,440
Total Cats: 198
Default

Ignition timing is handled by the stock ECU. Injection timing - you can't set it with the MS2E V2.x firmware, it is hardcoded. Injection timing is only possible with the alpha 3.X code and semi/sequential, where you set arbitrary values (guestimations) in degrees by trial and error and stop when you are happy with the results.

Jim
Reverant is offline   Reply With Quote
Old 11-12-2009, 10:29 AM   #5
Senior Member
Thread Starter
 
Join Date: Mar 2006
Location: Schwarzenberg, Germany
Posts: 1,497
Total Cats: 81
Default

Quote:
Originally Posted by Reverant View Post
Ignition timing is handled by the stock ECU. Injection timing - you can't set it with the MS2E V2.x firmware, it is hardcoded. Injection timing is only possible with the alpha 3.X code and semi/sequential, where you set arbitrary values (guestimations) in degrees by trial and error and stop when you are happy with the results.

Jim
When the injection timing is hardcoded - it has to have a trigger, right? So I would at least have to set the timing in any way.

As I said in the original post - timing with OEM sensors is quite close at the 99/00 we all have seen values between 4 and 5.5 trigger angle. So I suppose I could just leave it there..

Greets
Zaphod 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
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Walbro 255lph Fuel Pump $50 lsc224 Miata parts for sale/trade 2 10-01-2015 10:17 AM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-30-2015 12:04 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 11:10 PM.