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Title: About maf ID's and MLHFM Post by: professor on May 03, 2012, 12:26:24 PM A friend's conflict made me open this thread!
Original 032RP (63mm Internal Diameter maf case) MLHFM is 1x512 with values: Code: 161.6 162.1 162.7 163.3 163.8 164.4 164.9 165.4 166 166.5 167 167.6 168.1 168.6 169.1 169.6 170.1 170.6 171.1 171.6 172.1 172.5 173 173.5 173.9 174.4 174.9 175.3 175.7 176.2 176.6 177.1 177.5 177.9 178.3 178.7 179.2 179.6 180 180.4 180.7 181.1 181.5 181.9 182.3 182.6 183 183.4 183.7 184.1 184.4 184.8 185.1 185.4 185.8 186.1 186.4 186.7 187.1 187.4 187.7 188 188.3 188.6 188.9 189.2 189.5 189.7 190 190.3 190.6 190.8 191.1 191.4 191.7 191.9 192.2 192.5 192.7 193 193.3 193.5 193.8 194.1 194.3 194.6 194.9 195.2 195.5 195.8 196.1 196.4 196.7 197 197.3 197.7 198 198.3 198.6 199 199.3 199.7 200 200.3 200.6 200.9 201.2 201.6 201.9 202.2 202.5 202.8 203.1 203.4 203.7 204.1 204.4 204.7 205 205.3 205.6 205.9 206.2 206.5 206.8 207 207.3 207.6 207.8 208.1 208.3 208.6 208.9 209.2 209.4 209.7 210 210.3 210.5 210.8 211.1 211.4 211.7 212 212.3 212.6 212.9 213.3 213.6 213.9 214.2 214.6 214.9 215.2 215.6 215.9 216.3 216.6 217 217.4 217.7 218.1 218.5 218.9 219.2 219.6 220 220.4 220.8 221.2 221.7 222.1 222.5 222.9 223.4 223.8 224.2 224.7 225.1 225.6 226.1 226.5 227 227.5 227.9 228.4 228.9 229.4 229.9 230.4 230.9 231.4 231.9 232.4 232.9 233.4 233.9 234.4 234.9 235.4 235.9 236.5 237 237.5 238.1 238.6 239.1 239.7 240.2 240.8 241.4 241.9 242.5 243 243.6 244.2 244.7 245.4 246 246.6 247.2 247.9 248.5 249.2 249.9 250.5 251.2 251.9 252.6 253.3 254 254.7 255.4 256.2 256.9 257.6 258.4 259.2 259.9 260.7 261.5 262.3 263.1 263.9 264.7 265.5 266.4 267.2 268 268.9 269.7 270.6 271.5 272.4 273.3 274.2 275.1 276 276.9 277.8 278.8 279.7 280.7 281.6 282.6 283.6 284.6 285.6 286.6 287.6 288.6 289.6 290.6 291.7 292.7 293.8 294.9 296 297 298.1 299.2 300.4 301.5 302.6 303.7 304.9 306 307.2 308.4 309.5 310.7 311.9 313.1 314.3 315.5 316.7 317.9 319.1 320.4 321.7 322.9 324.2 325.5 326.9 328.2 329.5 330.9 332.2 333.6 335 336.4 337.8 339.2 340.7 342.1 343.6 345.1 346.6 348.1 349.7 351.2 352.8 354.4 356 357.6 359.2 360.8 362.5 364.1 365.8 367.5 369.2 370.9 372.7 374.4 376.2 377.9 379.7 381.5 383.3 385.2 387 388.9 390.8 392.6 394.6 396.5 398.4 400.4 402.3 404.3 406.3 408.3 410.4 412.4 414.5 416.5 418.6 420.7 422.9 425 427.2 429.4 431.6 433.8 436 438.3 440.6 442.9 445.2 447.5 449.8 452.2 454.6 457 459.5 461.9 464.4 466.9 469.4 471.9 474.5 477 479.6 482.2 484.8 487.5 490.1 492.8 495.5 498.2 500.9 503.7 506.4 509.2 512 514.9 517.7 520.6 523.5 526.4 529.4 532.3 535.3 538.3 541.4 544.4 547.5 550.5 553.6 556.7 559.9 563 566.2 569.4 572.6 575.9 579.2 582.5 585.8 589.2 592.6 596 599.5 602.9 606.4 609.8 613.3 616.8 620.4 623.9 627.5 631.1 634.7 638.3 642 645.7 649.5 653.3 657.1 661 664.8 668.8 672.7 676.7 680.7 684.7 688.7 692.8 696.9 701 705.2 709.3 713.6 717.8 722 726.3 730.7 735 739.4 743.8 748.2 752.7 757.1 761.6 766.2 770.7 775.3 780 784.6 789.3 794 798.7 803.5 808.3 813.1 817.9 822.8 827.7 832.6 837.6 842.5 847.5 852.5 857.6 862.7 867.8 872.9 878 883.2 888.4 893.6 898.9 904.2 909.5 914.8 920.2 925.6 931.1 936.7 942.2 947.8 953.4 959.1 964.8 970.5 976.3 982.1 987.9 993.8 999.7 1005.6 Lets change MAF case size from 63mm ID to 76mm ID. After some time my new MLHFM values were calculated. But he is sure that using his values MLHFM will work better! Whats your opinion? values are attached on .xlsx. Title: Re: About maf ID's and MLHFM Post by: nyet on May 03, 2012, 01:22:03 PM Please give more useful background information. I'm not going to waste type graphing these or running them through matlab to try to guess the intention of either of the scaling
Are these a fixed % scaling based on area or diameter? Some thing else? Title: Re: About maf ID's and MLHFM Post by: Lobuziak on May 03, 2012, 01:40:25 PM I made a graph with 46% scale... used offset = 200
Code: 143,9 144,7 145,5 146,4 147,1 148,0 148,8 149,5 150,4 151,1 151,8 152,7 153,4 154,2 154,9 155,6 156,3 157,1 157,8 158,5 159,3 159,9 160,6 161,3 161,9 162,6 163,4 163,9 164,5 165,3 165,8 166,6 167,2 167,7 168,3 168,9 169,6 170,2 170,8 171,4 171,8 172,4 173,0 173,6 174,2 174,6 175,2 175,8 176,2 176,8 177,2 177,8 178,2 178,7 179,3 179,7 180,1 180,6 181,2 181,6 182,0 182,5 182,9 183,4 183,8 184,2 184,7 185,0 185,4 185,8 186,3 186,6 187,0 187,4 187,9 188,2 188,6 189,1 189,3 189,8 190,2 190,5 190,9 191,4 191,7 192,1 192,6 193,0 193,4 193,9 194,3 194,7 195,2 195,6 196,1 196,6 197,1 197,5 198,0 198,5 199,0 199,6 200,0 200,4 200,9 201,3 201,8 202,3 202,8 203,2 203,7 204,1 204,5 205,0 205,4 206,0 206,4 206,9 207,3 207,7 208,2 208,6 209,1 209,5 209,9 210,2 210,7 211,1 211,4 211,8 212,1 212,6 213,0 213,4 213,7 214,2 214,6 215,0 215,3 215,8 216,2 216,6 217,1 217,5 218,0 218,4 218,8 219,4 219,9 220,3 220,7 221,3 221,8 222,2 222,8 223,2 223,8 224,2 224,8 225,4 225,8 226,4 227,0 227,6 228,0 228,6 229,2 229,8 230,4 231,0 231,7 232,3 232,9 233,4 234,2 234,7 235,3 236,1 236,6 237,4 238,1 238,7 239,4 240,2 240,7 241,5 242,2 242,9 243,7 244,4 245,1 245,8 246,6 247,3 248,0 248,8 249,5 250,2 251,0 251,7 252,4 253,3 254,0 254,8 255,6 256,4 257,1 258,0 258,7 259,6 260,4 261,2 262,1 262,8 263,7 264,5 265,3 266,3 267,2 268,0 268,9 269,9 270,8 271,8 272,9 273,7 274,8 275,8 276,8 277,8 278,8 279,9 280,9 282,1 283,1 284,1 285,3 286,4 287,5 288,6 289,8 291,0 292,1 293,3 294,5 295,6 296,9 298,1 299,3 300,6 301,8 303,1 304,4 305,7 307,0 308,3 309,6 311,0 312,3 313,6 315,0 316,4 317,8 319,1 320,6 322,1 323,5 325,0 326,4 327,9 329,4 330,8 332,3 333,9 335,3 336,9 338,6 340,2 341,6 343,2 344,8 346,6 348,2 349,8 351,4 353,2 354,8 356,5 358,3 359,9 361,6 363,4 365,1 366,9 368,6 370,4 372,1 373,9 375,8 377,7 379,4 381,3 383,2 385,3 387,2 389,1 391,1 393,0 395,1 397,1 399,1 401,2 403,2 405,4 407,5 409,7 411,8 414,0 416,2 418,6 420,8 423,1 425,4 427,8 430,1 432,4 434,8 437,3 439,6 442,1 444,6 447,0 449,5 452,1 454,6 457,3 459,7 462,4 465,0 467,6 470,4 473,0 475,8 478,6 481,2 484,1 486,9 489,7 492,6 495,4 498,3 501,2 504,1 507,2 510,1 513,2 516,1 519,2 522,2 525,4 528,5 531,7 534,9 538,1 541,3 544,6 547,9 551,3 554,6 558,0 561,4 564,7 568,2 571,7 575,2 578,9 582,4 586,0 589,7 593,3 597,0 600,8 604,4 608,2 612,0 615,8 619,8 623,5 627,5 631,4 635,4 639,3 643,4 647,3 651,4 655,5 659,8 663,8 668,1 672,3 676,5 680,9 685,2 689,5 693,9 698,4 702,8 707,4 711,7 716,3 720,8 725,5 730,0 734,7 739,3 744,0 748,8 753,6 758,5 763,3 768,2 773,2 778,2 783,3 788,2 793,3 798,3 803,4 808,5 813,8 818,9 824,2 829,4 834,7 839,9 845,3 850,7 856,3 861,8 867,4 873,1 878,6 884,4 890,1 896,0 901,8 907,7 913,5 919,5 925,5 931,5 937,6 943,6 949,9 956,0 962,1 968,4 974,8 981,1 987,5 993,9 1000,4 1006,9 1013,4 1019,9 1026,7 1033,2 1039,9 1046,8 1053,5 1060,4 1067,2 1074,1 1081,1 1088,1 1095,1 1102,1 1109,3 1116,4 1123,6 1130,9 1138,1 1145,4 1152,7 1160,1 1167,5 1175,0 1182,4 1189,9 1197,5 1205,1 1212,7 1220,4 1228,1 1235,9 1243,6 1251,5 1259,4 1267,4 1275,6 1283,6 1291,8 1300,0 1308,3 1316,6 1324,9 1333,4 1341,9 1350,3 1358,9 1367,6 1376,2 Title: Re: About maf ID's and MLHFM Post by: professor on May 03, 2012, 01:46:13 PM @nyet:
The easy way is to upscale by a fixed percentage all values, where percentage is the area difference of new maf case / old maf case. Will work but its the cheap way. The better way for me is to upscale values of course according to area% difference but also according to engine load (== mass flow/RPM). Dont forget air flow increase (or volymetric flow if you prefer) of the sensor readings are not linear. @Lobuziak Something is wrong with the graph please correct it is very useful (low values of original and mine starting from 129 and friends from 0. also pls switch friend <-> mine)). Matlab i guess? Title: Re: About maf ID's and MLHFM Post by: Lobuziak on May 03, 2012, 02:06:41 PM My mistake :D I switched names. It's done in LibreOffice Calc. The graph is without offset.
Title: Re: About maf ID's and MLHFM Post by: professor on May 03, 2012, 03:02:04 PM A bit reformatted.
I think its clear that mine is better ;D Title: Re: About maf ID's and MLHFM Post by: nyet on May 03, 2012, 03:16:59 PM Only two ways to find out
1) get it flowbenched 2) test it for real with a wb :) Title: Re: About maf ID's and MLHFM Post by: professor on May 03, 2012, 04:33:56 PM I' ll do it asap :)
But its obvious :D Title: Re: About maf ID's and MLHFM Post by: s5fourdoor on May 03, 2012, 04:46:23 PM start with a maf sensor and housing that are pre-calibrated. you'll regret it otherwise... that's been my experience at least.
Title: Re: About maf ID's and MLHFM Post by: professor on May 04, 2012, 08:37:20 AM News:
After some matlab calibrations on MLHFM values: First start and around 40km of driving, ltft's are 0.2, stft's 3.0!! 2 clicks KRTKE higher and we re done! Car feels and sounds angrier. Should had done this upgrade before. Title: Re: About maf ID's and MLHFM Post by: professor on July 22, 2012, 08:26:34 AM Found a very useful work of audizine member slappy_dunbar that should be available.
Original link (https://docs.google.com/spreadsheet/ccc?key=0AnU1jYuC-fFrdERMSnJ5SkJkMndOOGh5eGZORGdnNXc&hl=en#gid=0) Post link (http://www.audizine.com/forum/showthread.php/435736-Giac-PC16-how-far-can-it-be-pushed?p=6658839&viewfull=1#post6658839) File is also attached. Title: Re: About maf ID's and MLHFM Post by: Bische on July 24, 2012, 09:52:50 AM Found a very useful work of audizine member slappy_dunbar that should be available. Original link (https://docs.google.com/spreadsheet/ccc?key=0AnU1jYuC-fFrdERMSnJ5SkJkMndOOGh5eGZORGdnNXc&hl=en#gid=0) Post link (http://www.audizine.com/forum/showthread.php/435736-Giac-PC16-how-far-can-it-be-pushed?p=6658839&viewfull=1#post6658839) File is also attached. im pretty sure Chris "bananas" made those sheets also |