tuning methods - Miata Turbo Forum -Boost cars, acquire cats.

Welcome to Miataturbo.net   Members

ECUs and Tuning Discuss Engine Management, Tuning, & Programming

LinkBack Thread Tools Search this Thread
Old 09-12-2008, 12:37 AM   #1
Junior Member
Thread Starter
Join Date: Dec 2006
Posts: 172
Total Cats: 1
Default tuning methods

After a 6 month sabattical from my car I have found my interest in it renewed. I have been some retuning and will be installing the cops soon. I reread Jeremy's tips on tuning in the link ecu manual and one thing he said struck me as being counter to what I thought was the general consensus.

"however with a stock Miata motor we should limit this to a safe 180kPa. This means that ignition must be addressed first for peak
power, and then look at the proper fueling to support it. Basically, timing should be advanced as far as it can be without knock, and next determine the proper amount of fuel to control EGT's & knock. This means starting with too much fuel. A good turbine inlet temperature at full boost is 600F. Forget about an "optimal A/F ratio" for boost if you are looking to maximize

Now I guess I need to state that he is referring to a stock motor and limiting it to 180kpa (11.5psi). Now I'm not a scholar when it comes to tuning but I have read a couple of articles and spent a night or two in a Holiday Inn Express. My thought has always been to tune the fuel to a desired A/F ratio and then address the timing with some possible tweaks to the timing for some of the more knock sensitive zones. An article on Innovates site talks about max power levels and leaner ratios. I would like for others to share any tuning philosophies they have.

I would have placed this in a Link Ecu sub forum but there isn't one.

Man this forum sure has changed alot in the last 4 to 6 months.

Last edited by Mymiataflys; 09-12-2008 at 12:47 AM. Reason: add
Mymiataflys is offline   Reply With Quote
Old 09-22-2008, 12:26 AM   #2
Junior Member
Join Date: May 2005
Location: Kelowna, BC, Canada
Posts: 133
Total Cats: 0

Shiv from Vishnu tuning had some writeups on tuning the TEC2/3 back in the day. His philosophy seemed to be get your target AFR first and then tweak ignition for MTBT -- minimum timing for best torque.
mcsinc is offline   Reply With Quote
Old 09-22-2008, 01:52 PM   #3
Elite Member
iTrader: (3)
Join Date: May 2006
Location: Houston, TX
Posts: 2,900
Total Cats: 0

I tuned AFR first on a very conservative spark map. Then I went back and added timing on the dyno.

After timing was adjusted the AFRs had to be tweaked again, but that's normal.
Arkmage is offline   Reply With Quote
Old 09-22-2008, 02:20 PM   #4
Boost Czar

iTrader: (60)
Braineack's Avatar
Join Date: May 2005
Location: Chantilly, VA
Posts: 69,648
Total Cats: 1,356

when they wrote that, 12psi to them meant like 180-200rwhp. There are plenty of us stock internal 1.6L guys running well over 12psi and well over 230rwhp.
Braineack is offline   Reply With Quote

Related Topics
Thread Thread Starter Forum Replies Last Post
Expected intake temps on the track? tazswing Race Prep 20 10-03-2015 11:04 AM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 09:39 AM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 09:30 AM
"Chimney Ethanol" E100 MiataGarage Engine Performance 5 09-29-2015 11:04 PM
In need of base map for stock 1997 brandonbkd MEGAsquirt 0 09-28-2015 11:52 PM

Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 On
Pingbacks are On
Refbacks are On

All times are GMT -4. The time now is 10:02 PM.