Here are some of the other maps I have found in the ECU. Some are timing related some are not...

 

What are they called, and addresses? I can't view them

 

Subaru's timing multiplier can be a major PITA when tuning timing. I found out about that one pretty quickly when dabbling with my '04 WRX as it ramps up timing until it knocks and then drops all timing back down to base value, making things a little inconsistent at times. You can modify the multiplier value and basically "turn it off" for tuning purposes to try and achieve consistent results.

Tephra: Those are some interesting maps, do you think they are specific to 9 roms only? Really wish I understood a little more what I was looking at in my MUT table.

 

C6 - the addresses are only relevent for my ROM which is pretty rare..

if anyone can think of a function for those maps then I can hunt them down in other roms...

 

Darn, my home computer does not view the map nor does my work computer

 

Subarus add timing on top of the primary ignition table with a dynamic advance table not the IAM (ignition advance multiplier). The IAM determines how much of values called for in the dynamic advance map are actually used. On any kind of a well tuned car which runs knock free, the IAM should be at its' max value and consequently the ECU will run the full dynamic advance called for in the map UNLESS is encounters knock events that will lead to dynamic advance being pulled at specific load/rpm points. You can zero out the dynamic advance table, but to do so will remove the first option mechanism that the ECU has to retard timing in the event of knock. Not a good idea.

If there is significant and persistent knock the IAM will get knocked down and less than the full mapped values for dynamic advance will be run across the board. There is also a learned knock correction table which will pull out from the total timing run in specific areas in which the ECU has detected persistent knock. The are also fine learned knock correction tables which do a similar task.

All in all there is a heck of a lot more in tuning a Subaru ECU and coping with it's timing strategies and learned corrections than what is currently understood about the Evo ECU. A well tuned Subaru ECU should have timing values in the primary ignition map that are low enough that the full dynamic advance is run, so that the sum of the two are what the tuner wants the car to actually run. The trick is setting them up in a manner that the ECU wants to run that full timing value. Sometimes that means taking away from the primary ignition map and adding to the dymanic advance map. Other times it is the other way around.

 

I prefer the Evo's system, and having tuned more than a hundred Subarus I would not want to emulate its knock control system!

 

Dave, one of those tables looks like the start up ignition table that the car uses before it starts running. Ign table #1 to be precise. Ign table #2 almost looks like it has values that would match the timing advance map in some manner. Other than the 14's though, that part baffles me.

 

Anyone have an Airteck ROM?

Check out the 05 Airtek Xml, it has 2 ea, high oct ign and fuel maps, and 2 ea low oct ign and fuel maps.

Maybe the evo still has some undefined octane fuel and ignition maps

 

I do
The two maps are the same idea as the E9s 3 maps. They are the same as each other and leaving them the same keeps the timing consistant.

I originally thought that one was for Auto and the other was for Tiptronic, but I never did check that

There are many extra maps in my ROM, around 50 of them are for the transmission. (if people think that you are going to be able to easily tune the gearchange in the SST X- its not even easy on the relatively simple Invecs-II auto)

I do have the "low Det ignition table" and "high det ignition table" and can confirm that they work kinda like the Subaru system. Im not really sure yet it interpolates as nicely as the Suby system, but it did work for increasing the timing when I was running a 91oct map with 93oct in the tank



Basically what I did, was enter the difference in timing between my 91/93oct maps into the "low det ignition table"

Peak torque timing is @ 3* more with my 93oct map than my 91oct and I did log the higher timing when running the better gas.
To make things easier to detect, I flattened and block tuned my 91oct between 280 and 350 load to 3* and then block tuned my "low det ignition map" in the same areas to 3*-- the result was the logs showed 6* and no knock.

Once I get my new laptop this week (this one is #^&!ed), Im going to increase the "low det ignition" table values to a point where it should cause a small amount of knock and see if it interpolates or completely reverts back to the base 91oct map.


This is a fantastic feature, especially as I cant always get 93oct when day tripping, and may work for changes in weather conditions.

My 91oct map was tuned in 80-90 degrees, but the weather where I live changes dramatically temperature wise all year. In the morning it could be 85 degrees and in 2 hours it can drop to 50 degrees (in summer time!!).

It would be great to bee able to increase the timing in the low knock conditions!

 

 

I may have found them the other day for the IX-15. Please dont PM me asking about it till I can test them and make sure that it is in fact the maps that we think they are number 1 and then that we can use them the way I am hoping.

Monsta thats awesome.

I am looking forward to playing with them when the snow and ice subside here. Dunedin is south island in the south, yeah? I spent 3 weeks in Christchurch and Queenstown August before last. You guys have an awesome car scene and a beautiful country.

 

The map that I found in the IX looks like this:

 

Yes Dunedin is around 2 1/2 SE of Queenstown. We get lots of good cars here with all the grey import Jap cars we have been getting cheap since the early 90s

 

You must be one of evo4mad's mates