To GTB or not to
AO Silver Member
Join Date: Nov 2007
Yes it is possible...
Take engine capacity, multiply by air density (lets say 1.2g/l at 20°C), multiply by engine speed (2500rpm in your case or 7000rpm if you want to calculate at red line). Divide by 2 (because engine needs 2 rotations to pump whole capacity). Multiply by VE (0.89=89% at 2500rpm, maybe 0.8=80% at 7000rpm).
At this point you have airflow in grams per minute.
So to get airflow in kilograms per hour (which is usually standard) you need to multiply by 60 and divide by 1000.
Which tells you that you have 160kg/h of airflow at 2500rpm, or 403kg/h airflow at 7000rpm (assuming that prediction of VE=80% is about right).
So with 627kg/h specified max airflow this MAF should be quite good for you.
You would need to spin the engine over 8000rpm at 100% VE to outflow this MAF.