Anyone modify their MAF like this one?
#2
Why? the stock MAF is not a restriction, if you remove the center...
then you wreck the calibration of the MAF since more air will enter than what the MAF can read.
I think the post in the middle contains the sensor element, so you can't get rid of it anyways.
And don't remove the screen either, it's to straighten the air flow across the sensor since turbulent air can give a false reading.
I think the post in the middle contains the sensor element, so you can't get rid of it anyways.
And don't remove the screen either, it's to straighten the air flow across the sensor since turbulent air can give a false reading.
#4
Well, it's based on theory mostly....
you just have to know how they work. They are calibrated for a certain area/volume inside the meter. If you remove material, then you flow more air than it was calibrated for. People have tried it on Mustang 5.0s and they had lean problems. Running lean on a turbo motor is BAD.
I had removed the screen, but saw no changes, so I put it back in.
If you're worried about restriction, look at improving the airbox and intake tract flow. The restriction in any system usually has the smallest cross-sectional area. Besides the airbox, I think the turbo inlet has the smallest cross-sectional area, so what good is modifying the MAF, if the turbo is the next weakest link?
I had removed the screen, but saw no changes, so I put it back in.
If you're worried about restriction, look at improving the airbox and intake tract flow. The restriction in any system usually has the smallest cross-sectional area. Besides the airbox, I think the turbo inlet has the smallest cross-sectional area, so what good is modifying the MAF, if the turbo is the next weakest link?
#6
miktip, curious, what car is this from? Was something cut out of it?
Not talking about the screen. The one on my 12V has a center post and I always thought it was obstructive. Anyway, I was playing with my old filters yesterday, RAMAIR, stock, K&N, open (no filter) and the numbers based on measuring MAF output are:
RAMAIR - flows 99.5% of stock setup (stock filter)
K&N cone - flows 100.8% of stock
open - flows 105.2% of stock
and then I played with that center piece and removed a back plate to make the air flow more linear. I got (drum roll)
open + mod - flows 109.4% of stock
Makes me go Hmmm, maybe I can find a used MAF to play with. What part # is this pic? TIA
RAMAIR - flows 99.5% of stock setup (stock filter)
K&N cone - flows 100.8% of stock
open - flows 105.2% of stock
and then I played with that center piece and removed a back plate to make the air flow more linear. I got (drum roll)
open + mod - flows 109.4% of stock
Makes me go Hmmm, maybe I can find a used MAF to play with. What part # is this pic? TIA
#7
Turbo or no turbo, it's not a good idea....
Running lean is not a good thing.
Since it's not a turbo,
What's the inner diameter of your throttle body? What about all the intake hoses?
If you think you have a restricion, place a vacuum gauge in the inlet system. If you see vacuum at WOT, then you have a restriction.
Try it before the MAF, after the MAF, before the TB, after the TB, and any other place you think maybe restrictive.
Since it's not a turbo,
What's the inner diameter of your throttle body? What about all the intake hoses?
If you think you have a restricion, place a vacuum gauge in the inlet system. If you see vacuum at WOT, then you have a restriction.
Try it before the MAF, after the MAF, before the TB, after the TB, and any other place you think maybe restrictive.
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#8
AudiWorld Expert
Thread Starter
Re: miktip, curious, what car is this from? Was something cut out of it?
<img src="http://www.mustangofthemonth.com/tech/snapshot4.jpg">
Here's a pic of the center piece being removed.
This mod is all over Mustang sights everywhere!
I'm very curious to see how it does on Audi.
I'll be removing the center piece, and leaving the
sensor hole alone.
I do believe the part numbers on the housing?
Here's a pic of the center piece being removed.
This mod is all over Mustang sights everywhere!
I'm very curious to see how it does on Audi.
I'll be removing the center piece, and leaving the
sensor hole alone.
I do believe the part numbers on the housing?
#9
AudiWorld Expert
Thread Starter
Re: Hmmmm..................
Here's my situation-
2 MAF's, one stock, one with the center piece cutout.
Install cut out, see how she runs. Test on computer which gives readouts of whats going on inside engine!
Hows is it not a good idea?
What have I got to loose?
What have I to possibly gain!
2 MAF's, one stock, one with the center piece cutout.
Install cut out, see how she runs. Test on computer which gives readouts of whats going on inside engine!
Hows is it not a good idea?
What have I got to loose?
What have I to possibly gain!