Originally Posted by
Wichita Dyno
So what is the latest on this? Can we not rescale with this software?
The MAF axis is just a non-visible calibration in EFILive. I don't see any reason why it can't be made visible so it can be re-scaled by the tuner. I'll add it to the list of things for the next update.
Meanwhile the way it currently determines the lookup values from the MAF table between 8550 and 15000 is via linear interpolation.
For example assuming the last two entries in the table are:
8550=360
15000=1150
then if the Hz value was 12000, then the value returned from the lookup table is computed by the ECM as follows:
g/s = 360+v*(y/x) where
v = 12000-8550
y = 1150-360
x = 15000-8550
so the lookup value when Hz=12000 is calculated as: 360+(12000-8550)*(1150-360)/(15000-8550)
360+3450*(790/6450) =
360+3450*0.12248 =
782g/s
To help with tuning right now, here's what the values are for various points in between the last two cells:
Code:
Hz g/s
8550 360
8600 366
8650 372
8700 378
8750 384
8800 391
8850 397
8900 403
8950 409
9000 415
9050 421
9100 427
9150 433
9200 440
9250 446
9300 452
9350 458
9400 464
9450 470
9500 476
9550 482
9600 489
9650 495
9700 501
9750 507
9800 513
9850 519
9900 525
9950 531
10000 538
10050 544
10100 550
10150 556
10200 562
10250 568
10300 574
10350 580
10400 587
10450 593
10500 599
10550 605
10600 611
10650 617
10700 623
10750 629
10800 636
10850 642
10900 648
10950 654
11000 660
11050 666
11100 672
11150 678
11200 685
11250 691
11300 697
11350 703
11400 709
11450 715
11500 721
11550 727
11600 734
11650 740
11700 746
11750 752
11800 758
11850 764
11900 770
11950 776
12000 783
12050 789
12100 795
12150 801
12200 807
12250 813
12300 819
12350 825
12400 832
12450 838
12500 844
12550 850
12600 856
12650 862
12700 868
12750 874
12800 881
12850 887
12900 893
12950 899
13000 905
13050 911
13100 917
13150 923
13200 930
13250 936
13300 942
13350 948
13400 954
13450 960
13500 966
13550 972
13600 979
13650 985
13700 991
13750 997
13800 1003
13850 1009
13900 1015
13950 1021
14000 1028
14050 1034
14100 1040
14150 1046
14200 1052
14250 1058
14300 1064
14350 1070
14400 1077
14450 1083
14500 1089
14550 1095
14600 1101
14650 1107
14700 1113
14750 1119
14800 1126
14850 1132
14900 1138
14950 1144
15000 1150
Regards
Paul