I was also start thinking that there has to be some kind of limiting point in exhaust side.
So next step is measure back pressure after turbo. If that presssure curve rises on same time when MAF value dropped we know reason. BTW. I just remember that last owner has drove almost 6months with huge boost leak(that EGR hose). So that can be reason why now gas flowing seems to be limited...

I am already thinking next stage for getting better performance. Any already tested info when i need to be adjust rail pressure up and start tuning also other MAPS(SOI and others) ?

I had wondering why logging maximum IQ is limiting to 66.
I had assumed that smoke maps has extrapolation so IQ values from last column is not reason to 66 IQ value.



If you guys look my maps, you see that i was expecting to 68(TL1) on 2750RPM. But there there was only 66.

Is Fuel temp 2 wrong name for my temp realted IQ limit map and it should be water temp ? Because i see that water temp 82 degree is quite equal to IQ limit 66


I was finally found correct map for rising boot pressure and now i would like to have more IQ that i get all possible power out.

I put my ORI, MOD and OLS file to attachment.

It was temp limitter what was bothering IQ max value. I ifxed it and rised TL to 71. Now i have logged IQ 70.
But when i was looking logged SOI values, i was wondering max SOI is only 19degree at 4000rpm(IQ 59) because looking from SOI maps i see 19 for IQ50 and 23 for IQ55. Concerning this i was expecting to see 23+ for IQ58
IQ axle for SOI is mL not mG, or Is it ?

This re-mapping is so interesting and addictive hobby.
I found answer from other SOI related topic. It was helping to me understand that my axles was wrong order.
Before i was only thinking that 2D inverse is key thing, after i changed Y=RPM and X=IQ i was seeing exact same values than in my log file.
And now i found out that other guys in forum has make same mistake.
So here is tip how to check is your axles correct: SOI is increasing linear aprox 1-2degree per 250rpm from 2000 to 3000rpm
Here examle mine:
2000@IQ55 5,0
2250@IQ55 7,5
2500@IQ55 9,3
2750@IQ55 10,3
3000@IQ55 11,4

And same map but wrong axle order, then values are:
2000@IQ55 10,1
2250@IQ55 10,7
2500@IQ55 11,6
2750@IQ55 14,8
3000@IQ55 18,3



So my next task migh be re-scale that IQ axle for 70 ? So its time to start using EOIbuilder :)