08-09-2014, 07:48 PM
The stock 90 can measure up to 577Kg/hr, the 2.2 MAF can read 774 Kg/hr.
At 5000 RPM, for example, that's a difference of 960 mg/r vs 1290mg/r. Quite a big difference really. And obviously you aren't going to get all of that useable range out of it, but with some clever maths on the linearisation you can maintain smoke control down low and also up high and then get it useable above 900 anyway. If your MAF is broken anyway then it's not too much trouble to change to one of these.
When you use the normal MAF in a 2.8 housing, how are you working out the calibrations other than just the maths for the cross section, you've got boundary layers, the depth at which the sensor is submurged/actually measures the flow etc etc to work out, or does it not need to be that precise?
At 5000 RPM, for example, that's a difference of 960 mg/r vs 1290mg/r. Quite a big difference really. And obviously you aren't going to get all of that useable range out of it, but with some clever maths on the linearisation you can maintain smoke control down low and also up high and then get it useable above 900 anyway. If your MAF is broken anyway then it's not too much trouble to change to one of these.
When you use the normal MAF in a 2.8 housing, how are you working out the calibrations other than just the maths for the cross section, you've got boundary layers, the depth at which the sensor is submurged/actually measures the flow etc etc to work out, or does it not need to be that precise?