Polishing MAF...not porting [Archive] - GrandAmGT.com Forum


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07-13-2004, 07:08 AM
Hey all,
So while I was installing my Dr. Speed CAI yesterday I noticed the inside of my MAF was not smooth at all. Would it be benificial at all to take it apart and sand it down (to a polished surface)? I do not want to cut the middle "fin" out....this is my daily driver and I can't risk having an unstable car (please, do not post how your car is stable. I know the ported MAF works for some, and not for others so that means I have a 50/50 chance of running rich too easily).

Just polishing the MAF....most likely I wouldn't notice a difference right?

07-13-2004, 07:12 AM
Technically, anything that alters the flow through the meter will affect the calibration. But I can gaurantee that GM does NOT test and calibrate each individual meter anyway so there is an inherent error. I doubt polishing would alter flow enough to make a difference. If anything it might even help the flow be more laminar by removing eddie currents off of the rough surface.