Please be patient, I am going to start creating a guide for tuning on pump gas. I am not an expert but have been successful on my own car. If you are an expert and had advice to give or just know stuff please tell me so I can modify and update this. This is a continuation of the Big Turbo Base Map guide I made earlier.
There are three main parts of tuning VT.
I am assuming you read through the big turbo guide and have a decent maf cal already with a good base map.
MAF CAL STUFF
Maf Cal - Read through these two guides, the goal is to get the requested AFR at WOT all the time. This is tedious but very important. Once this is set you get to have fun and add power. GUIDE 1 GUIDE 2 , read , read and read some more. There are also good youtube videos on this.
This is what my mafcal looks like after various adjustments through the tune. HTP 3.5 Speed 3 gen juan
For the gen juan you want to copy the data to both "MAF Calibration 1" and "MAF Calibration 2"
You can apply smoothing eventually but the main thing is to have it progress and never have it decrease as voltage does up. The MAF is telling your car how much air has to work with in order to have proper fueling. If you mess this up you're gonna have a bad time.
Make sure you also set Closed Loop Load Limit to 1 across the board if you did not already to help you dial in the mafcal quicker, this can be changed to 3 across the board once you are done.
LOGGING
I used these fields to log my mafcal.
LOAD, BOOST and Wastegate Duty Cycle "WGDC"
There are three main parts of tuning VT.
- Maf Cal
- Setting Load and WG Duty cycle to achieve desired boost. "more mafcal"
- Set Timing
I am assuming you read through the big turbo guide and have a decent maf cal already with a good base map.
MAF CAL STUFF
Maf Cal - Read through these two guides, the goal is to get the requested AFR at WOT all the time. This is tedious but very important. Once this is set you get to have fun and add power. GUIDE 1 GUIDE 2 , read , read and read some more. There are also good youtube videos on this.
This is what my mafcal looks like after various adjustments through the tune. HTP 3.5 Speed 3 gen juan
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2.1165 2.414 2.754 3.1025 3.4765 3.9015 4.3435 4.8875 5.4485 6.001 6.766 7.5395 8.304501 9.0185 10.1575 10.9395 11.781 12.7585 13.821 14.909 16.1415 17.5015 18.8615 20.349 22.338 23.613 26.04671 30.18557 31.64795 33.35631 35.6636 38.03057 40.53677 41.03556 42.80758 45.49449 48.29696 51.17648 53.39149 57.36889 61.36555 64.74586 68.26099 73.79733 77.69025 79.26878 84.18114 89.09351 93.00068 97.86052 104.2415 109.1733 112.44 117.2998 122.1597 127.0195 133.1813 140.4788 147.7762 155.0737 162.3711 169.6686 176.9661 184.2635 191.561 198.8585 206.1559 213.4534 220.7509 231.216 241.6811 249.7865 259.4911 267.9873 276.6191 286.8766 297.633 303.3923 314.4585 323.6683 332.352 342.9451 346.5934 357.4077 368.4618 375.7919 387.2167 398.8571 410.7563 422.9249 435.3413 447.9948 460.9286 474.1212 487.5723 496.2703 510.1633 524.2828 538.6824 553.384 568.3547 583.5952 599.1588 614.9919 631.1376
For the gen juan you want to copy the data to both "MAF Calibration 1" and "MAF Calibration 2"


You can apply smoothing eventually but the main thing is to have it progress and never have it decrease as voltage does up. The MAF is telling your car how much air has to work with in order to have proper fueling. If you mess this up you're gonna have a bad time.
Make sure you also set Closed Loop Load Limit to 1 across the board if you did not already to help you dial in the mafcal quicker, this can be changed to 3 across the board once you are done.

LOGGING
I used these fields to log my mafcal.

LOAD, BOOST and Wastegate Duty Cycle "WGDC"
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