Modding MAF unit

[96ploder]

I have the post in my MAF unit and I have heard that you can remove element and then grind the post out. Have die grinder and am ready to cut. Any pix or write-up on this?

 

[mikefox]

This type of mod was posted on http://www.mustangworld.com/ourpics/fcar/masair.htm for a mustang. I was considering doing this myself some day.

 

[Apten]

don't do it.

I can't believe they still have that article posted.

don't do it, it's a bad idea. modifying the meter body changes the flow characteristics of the MAF. That causes the hot wires to incorrectly read air volume, as they are calibrated to a stock meter body. The results may be slightly leaning your car out, or it may just run like crap. I've seen people do it and have very mixed results. The one thing I know is that modifying the single most important sensor in the engine bay isn't a good idea.

Brian Herron

 

[96ploder]

The reason I want to do it is: my '89 GT has a 55mm MAF unit (throttle body is 60mm) - I got a vortech 73mm MAF unit with a sampling tube calibrated for my 19 lb injectors. I simply transferred the MAF sensor, bolted on and 15 minutes later I had it working. It smoothed the idle fluctutations I was having with my TFS #1 cam and no restarts when car is cold. In the past it took 2 minutes for it to start and idle, now it fires right-up. Just looking at it, I can see it is restricted on my Explorer. Any more information on this?