I know that APR use the standard OEM calibration for the MAF
Hello everyone! I'm sure this is what KRL meant but I'll clarify his post regarding APR calibrations and maf diameters and try to provide some additional info.
APR calibrates our Stage 1, Stage 2, Stage 2+ and ED30 Conversion ECU Upgrades within the OEM maf diameter (the physical maf housing) and by maintaining the original sizing parameters and scaling of the calibration surfaces in the ecu (the software attributes of the maf).
The ecu has over 2400 load and rpm dependent maps that depend upon readings from the maf in some way, shape or form. These readings are assumed to have been collected from a car with an identical cross sectional area as the oem maf. If the cross sectional area of the maf housing has changed, the ecu won't know it unless re-calibrated properly and all of these interconnected and interdependent maps will be miscalculated causing a slew of potential problems to include proper running, emissions control and power delivery.
Our Stage 3 ECU Calibrations incorporate new map scaling, algorithm adjustment, computational calculations, variable adjustment and over 78 additional ecu coding changes to accommodate for the new maf diameter.
What concerns us the most is when intake manufacturers don't properly recreate the cross sectional area, diameter, shape and inherent airflow characteristics of the oem maf housing in their product offerings. We feel its best to either leave the oem maf housing alone, properly re-manufacture it for your intake or have the ability to control both ends of the spectrum, hardware and software development, so you can make a new maf and recalibrate the ecu to operate correctly with it.
The problem most of you guys face is that you have companies that make intakes and companies that make software. These companies can't do both and aren't working together nor would you want them to.
Sure, you can buy an APR/Carbonio intake and APR software and know that they will always work perfectly together but why would you want to buy Neuspeed's intake and APR software made to work with Neuspeed's intake?
What I really think needs to happen for the betterment of all is for intake manufacturers to simply step up to the plate and use manufacturing processes that are capable of reproducing all of the inherent properties of the oem maf or to not change the maf with their intake offering.