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Descreened MAF

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Old 09-25-2004, 07:25 PM
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Default Descreened MAF

Whats the advantage.
Old 09-25-2004, 07:53 PM
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Lots of tuning problems, lean condition, and a couple degrees of timing to cause some KR.

In other words ... this isn't a good mod.
Old 09-25-2004, 08:11 PM
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I agree. The computer is calibrated to meter the air on the characteristics of the stock screened Mass Airflow Sensor. The screen stabilizes and polarizes the air flowing across the sensor wires. Without the screen the air is too turbulent to be measure with any accuracy.
Old 09-25-2004, 08:35 PM
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Originally Posted by James B.
Without the screen the air is too turbulent to be measure with any accuracy.
How is that corrected on MAF's like the corvette's with no screen?
Old 09-25-2004, 08:37 PM
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Mine is descreened and Allen had no tuning problems with mine runs like a champ
Old 09-25-2004, 08:40 PM
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I wish I had a better picture, but the truck intakes are curved, while Corvette intakes are straight tubes right into the throttle body which is why I think they don't have a screen....and no turbulence.

Old 09-25-2004, 08:43 PM
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Can the computer be tuned for the removal of the screen? I need to know because mine is removed and I'm ordering my tune Monday. Thanks
Old 09-25-2004, 08:57 PM
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Originally Posted by Chingon
I wish I had a better picture, but the truck intakes are curved, while Corvette intakes are straight tubes right into the throttle body which is why I think they don't have a screen....and no turbulence.


Correct!!! And thats why when GM started looking for performance for the 405HP Z06's they didn't put in a screened MAF and actually picked up a few horses. The screen is supposed to straighten the incoming air and remove turbulence to flow around the bends in the trucks intakes but the corvette being straight doesn't need it therefore more incoming airflow thus more HP...Zed
Old 09-25-2004, 09:44 PM
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Originally Posted by storm5.3
Correct!!! And thats why when GM started looking for performance for the 405HP Z06's they didn't put in a screened MAF and actually picked up a few horses. The screen is supposed to straighten the incoming air and remove turbulence to flow around the bends in the trucks intakes but the corvette being straight doesn't need it therefore more incoming airflow thus more HP...Zed
I have said this many times in here all you have to do is put it on a dyno and prove to me that you gain anything other than potential problems by removing the screen. And don't give me any **** about seat of the pants feeling.
Old 09-25-2004, 10:20 PM
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I did it and it runs like a champ as well.


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