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I drive a 92' 626 and over all i've sastisfied with the car except for being a little slow. Right now I have a Cone filter with an afm adapter my brother had made me, it makes the car sound neat although it really didn't add much of a performance boost. It might have shaved a second off my 0-60 from 11sec.... Whoa! Then again I was counting in my head, I could be just counting a little slow. There are actually 3 resonator's on the non-turbo. The first is the one in the fender, take that damn thing out, it is really constricting, going from a 2 1/2" port down to a one inch inside the fender can't be too good of flow. The second is the airbox, it is actually considered a resonator in the book. The third is connected to the tube between the AFM and the throttle body. It's a small black box that is sealed except where it connects to the tube, taking that off makes it sound even better and now the car sounds like it's sucking more air or sucking it through a straw, probably because of the way the AFM is desinged. Does any one know what would happen if I take off the AFM? Won't it cause my car to screw up the air/fuel mixture ratio or not run at all? A little insight would help

Thank's
Bob


1992 Mazda 626 LX 5 speed with those damn auto seatbelts!
MX-6 spoiler added along with 15" 4ws Wheels, rides much better!
 

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IF you can trick a computer(which is stupin IMO) you can rid your self of AFM....... to see how it will work with out it, just disconest it and you car will go all funny......
just my 0.02 pesso
 

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your car won't run at all will it? It signal the fuel system as to how much fuel is needed to compinsate for air. I wouldn't even try it. Its not good to run without the other resonator either unless you plugged that hole.
 

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the last resonator you were talking about produces more torque (about 5 ft/lbs). I wouldn't take it out.

When the AFM is unplugged, the car will runs for about 5 seconds then die. I haven't seen any damaging effects...yet.
 

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5 ft/lbs serious? cause i was just getting ready to take mine off today. Can anyone verify this?
 

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On my '89 LX, I removed the cuff going from the airbox to the fender, and the little box connected to the middle of the intake hose. I must admit, I didnt really feel any difference in power, but it definitely made the intake snarl louder. It actually sounds really neat.
 

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all i really know about it is that the approx 5ft/lbs are lost somewhere between midrange/highrange...3000-4000. If you look at a dyno plot, there will be a little dip (for a couple 100 rpms) at that point then resume back to what it was. That's the reason why the 5ft/lbs loss isn't felt much. There is some physics principle that I can't recall, that explains way this happens.

My last post about it was rather general...I've done a bit more research about it since then.

In the end, its only a little power drop for a very short period of time. It's a toss up; if you want the sound, take it out. If you are a power freak, leave it in. I'm not too concerned with it anymore.
 
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