Forced Induction Maf Calibration

novi306 said:

I guess maybe I'm answering my own question
AND validating what mikestang63 suggested that I dyno the car and possibly have it tuned

Click to expand...

This^


Don't fool with the meter. All that really accomplishes is degrading the meter resolution in order to put the MAF curve into smaller readable portion of the sensor.

Give the 30 point transfer function to your tuner and let him do the rest.

Volts kg/hr
16.0 - 2160.15
5.0 - 2160.15
4.8 - 1935.52
4.6 - 1727.99
4.4 - 1536.31
4.2 - 1360.47
4.1 - 1278.09
3.9 - 1123.48
3.7 - 983.13
3.5 - 855.44
3.3 - 740.12
3.2 - 686.89
3.0 - 588.35
2.8 - 499.96
2.6 - 421.38
2.5 - 385.90
2.3 - 321.27
2.1 - 264.24
1.9 - 214.81
1.7 - 172.36
1.6 - 153.35
1.4 - 120.08
1.2 - 92.51
1.0 - 69.39
0.8 - 51.01
0.7 - 43.09
0.5 - 29.78
0.3 - 19.96
0.1 - 12.36
0.0 - 9.50

I used this to validate the chart above:

Not Converted
MAF_FUNCTION #
( 5.0999 , 2282.7986 ) ( 5.0000 , 2163.7375 ) ( 4.8999 , 2048.8037 )
( 4.7998 , 1938.6326 ) ( 4.7000 , 1832.5887 ) ( 4.5999 , 1730.6725 )
( 4.5000 , 1632.8835 ) ( 4.3999 , 1538.9047 ) ( 4.2998 , 1448.7358 )
( 4.2000 , 1362.6942 ) ( 4.0999 , 1280.1451 ) ( 4.0000 , 1201.0886 )
( 3.8999 , 1125.8420 ) ( 3.7998 , 1053.7703 ) ( 3.7000 , 984.8736 )
( 3.5999 , 919.4694 ) ( 3.5000 , 857.2401 ) ( 3.3999 , 797.8683 )
( 3.2998 , 741.6714 ) ( 3.2000 , 688.0145 ) ( 3.0999 , 637.2151 )
( 3.0000 , 589.2732 ) ( 2.8999 , 543.8712 ) ( 2.7998 , 501.0092 )
( 2.7000 , 460.6872 ) ( 2.5999 , 422.5876 ) ( 2.5000 , 386.7105 )
( 2.3999 , 353.0559 ) ( 2.2998 , 321.6238 ) ( 2.2000 , 292.0966 )
( 2.0999 , 264.7919 ) ( 2.0000 , 239.0747 ) ( 1.8999 , 215.2625 )
( 1.7998 , 193.3553 ) ( 1.7000 , 172.7180 ) ( 1.5999 , 153.9857 )
( 1.5000 , 136.5234 ) ( 1.3999 , 120.6486 ) ( 1.2998 , 106.0438 )
( 1.2000 , 92.7089 ) ( 1.0999 , 80.6441 ) ( 1.0000 , 69.8492 )
( 0.8999 , 60.0068 ) ( 0.7998 , 51.1169 ) ( 0.7000 , 43.1795 )
( 0.5999 , 36.1946 ) ( 0.5000 , 30.1622 ) ( 0.3999 , 24.7647 )

Converted to 30pt curve
MAF_FUNCTION #
( 15.9998 , 2163.7473 ) ( 5.0000 , 2163.7473 ) ( 4.8000 , 1938.6995 )
( 4.6000 , 1730.7018 ) ( 4.4000 , 1538.9738 ) ( 4.2000 , 1362.7478 )
( 4.1000 , 1280.2109 ) ( 3.9000 , 1125.8219 ) ( 3.7000 , 985.0623 )
( 3.5000 , 857.2043 ) ( 3.3000 , 741.5316 ) ( 3.2000 , 688.0432 )
( 3.0000 , 589.3292 ) ( 2.8000 , 501.0590 ) ( 2.6000 , 422.5592 )
( 2.5000 , 386.7656 ) ( 2.3000 , 321.6841 ) ( 2.1000 , 264.7439 )
( 1.9000 , 215.3166 ) ( 1.7000 , 172.7894 ) ( 1.6000 , 153.9255 )
( 1.4000 , 120.6307 ) ( 1.2000 , 92.7686 ) ( 1.0000 , 69.7808 )
( 0.8000 , 51.1258 ) ( 0.7000 , 43.2587 ) ( 0.5000 , 30.1265 )
( 0.3000 , 20.0527 ) ( 0.1000 , 12.5614 ) ( 0.0000 , 9.6411 )

This is for an 80mm Pro-M calibrated for 42lb injectors. Your tuner will fine-tune based on AFR.

Don't forget to send me $50.