http://john824.fotopic.net/p29823913.html

Here are the settings on my IX ECU.

 

please take a look at this thread:

https://www.evolutionm.net/forums/sh...d.php?t=203585

you should never change the number of rows/columns or the scalings for what you are trying to accomplish.

 

ECUedit works on the evos now? Or did I totally overlook something?

 

ya i just read that a couple of moments ago.

 

razorlab, all it needs it the right xml file, see openecu Evo 9 forum.

 

This is strange... I downloaded my ROM today.. custom dynoflash. I was expecting to see a different value in the injector scaling field but it's the same as the stock ROM I've downloaded (513). Any comments?

 

you dont have larger injectors do you? if not then there in no reason to touch it

 

Yes I have 780cc injectors.. the car was custom tuned by Al already and everything runs really well... I'm just wanting to make some very minor adjustments to the idle and a few other things... this stuff ROCKS!

 

The reason some tunners using stock injector size is that most of big injectors don't scale like stock injectors. it will get lean on some area and get too rich on other if you scale it. But if you set the scale low as stock, it will just get too rich every where. Then, they can put the timing table where they want it to be first and adjust the fuel accordingly for the tune. It is the matter of convinience and saftey. I try to put the correct scale value(little less for the saftey ) and adjust timing and fuel at the same time. It is more pain in the %$s to tune but I don't like to change too much from original stock map.

 

I agree with you "PARTLY" I do scale the injectors, but I always scale them smaller than the size they are.. THen I can use the voltage compensation and fuel maps to get the tune in check.. But for the same reason you said, purposely scaling your injectors smaller than you need will force them to be rich instead of lean..

For instance, 1000cc injectors I would scale to roughly 900cc or even 850.. Once you have greater than 1000cc injectors, then your stuck at 1000 and altering the fueling and voltage comp table to get them to work right, but you can get injectors as large as 1600cc to work doing that, only if your at that power level, you are already making other changes, hopefully your still using a flashed ECU just to prove that it can be done.. I know everything I do will retain the stock ECU with a reflash doing the work in some way..

 

Jack, when you tune do you set your timing first and then edit fuel or do you set your fuel maps then run up timeing til you see knock events then back off

 

Not Jack here, but you definately want to get control of your afr first, then do the timing.

 

Agreed.. Start with getting your fuel curve dialed in.. Then hit your timing, if you find you can not get any sort of good timing then you can richen up the curve a bit, and hit the timing again. Repeat that until you get a happy tune..

All I can suggest is never to tune on the edge, always leave plenty of headroom for error or unexpected problems until your 100% certain the tune is right, use that as a starting point, then sneak up on the power..

 

well, then what is "good" timming?

 

That's what the tuning process is all about. you gotta find what works for that particular combination.