De-screening a MAF
Thread Starter
Le Mans Master
Joined: May 2002
Posts: 5,930
Likes: 39
From: Still cruising the BVI in my head.
St. Jude Donor '08
De-screening a MAF
Is this something I want to do? Seen it referenced around here a little, but not sure if it's a performance mod, or just a way to **** things up...
Drifting
Joined: Jan 2006
Posts: 1,904
Likes: 1
From: Ellettsville Indiana
CI 7-8-9 & 12 Veteran
Wounded Warrior Escort '11
I would leave this part alone. I can't believe that its removal would give you any "seat of the pants" performance gains. If anything you take the chance of screwing something up. Put your time and energy (and money) towards something that will truly make a difference.
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
A member of the LS1 team once said that it made only 2hp difference on the LS6... so that means almost no gain on a LS1.
In other words, there's probably zero gain unless you're over 400 flywheel HP.
Some report driveability problems when descreening. Others don't have any problems.
If you're under 400 flywheel HP... Is it worth the risk ?
In other words, there's probably zero gain unless you're over 400 flywheel HP.
Some report driveability problems when descreening. Others don't have any problems.
If you're under 400 flywheel HP... Is it worth the risk ?
Melting Slicks
Joined: Jul 2006
Posts: 2,088
Likes: 2
From: tampa florida
A member of the LS1 team once said that it made only 2hp difference on the LS6... so that means almost no gain on a LS1.
In other words, there's probably zero gain unless you're over 400 flywheel HP.
Some report driveability problems when descreening. Others don't have any problems.
If you're under 400 flywheel HP... Is it worth the risk ?
In other words, there's probably zero gain unless you're over 400 flywheel HP.
Some report driveability problems when descreening. Others don't have any problems.
If you're under 400 flywheel HP... Is it worth the risk ?
Exactly what my tuner said, since I'm +400 I'm descreening, but the tune must also be adjusted as well.
He also said the aftermerket ones you should stay away from too. Throw lots of codes and drivability issues.
Safety Car
Joined: May 2004
Posts: 4,487
Likes: 5
From: Naples Florida
A member of the LS1 team once said that it made only 2hp difference on the LS6... so that means almost no gain on a LS1.
In other words, there's probably zero gain unless you're over 400 flywheel HP.
Some report driveability problems when descreening. Others don't have any problems.
If you're under 400 flywheel HP... Is it worth the risk ?
In other words, there's probably zero gain unless you're over 400 flywheel HP.
Some report driveability problems when descreening. Others don't have any problems.
If you're under 400 flywheel HP... Is it worth the risk ?
Racer
Joined: Sep 2006
Posts: 464
Likes: 2
From: New Bern NC
In the book I got, How to Build Hight-Performance Chevy LS1/LS6 V-8's by Will Handzel. It says that the 02 Z06 doesn't have a screen in its MAF. I'm not entirely sure if it will help you or not but this book says its ok.
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Melting Slicks
Joined: Oct 2006
Posts: 2,938
Likes: 173
From: hebron IL
C3 of Year Finalist (appearance mods) 2019
I took the screen out. Didn't notice any difference,didn't throw any codes. I figure if it can get cooler air to my engine faster it has to be a plus
Racer
Joined: Dec 2006
Posts: 272
Likes: 3
From: South Louisiana
In a lot of cases the factory MAF screen is there to smooth or give a certain airflow pattern over the element.
This is one reason descreening can cause drivability issues.
Most aftermarket MAFs have a different design and most use a horn type design to smooth element airflow.
A good tuner can get the issues out of either in most cases.
IMO it was designed this way, leave it alone.
This is one reason descreening can cause drivability issues.
Most aftermarket MAFs have a different design and most use a horn type design to smooth element airflow.
A good tuner can get the issues out of either in most cases.
IMO it was designed this way, leave it alone.
Le Mans Master
Joined: Aug 2004
Posts: 5,141
Likes: 7
From: Metairie Louisiana
I just purchased one today for my C4 from Mid America. They are on sale for $39.99 for the 1994-2000 model. It may not do much but if I don't like it I can always put the stock housing back on. Also below is a link to an article where it was tested on a C4.
http://www.mamotorworks.com/corvette...rame=3.135.677
http://www.vetteweb.com/tech/vemp_06...ow_sensor.html
http://www.mamotorworks.com/corvette...rame=3.135.677
http://www.vetteweb.com/tech/vemp_06...ow_sensor.html
Last edited by rickneworleansla; Jul 31, 2007 at 01:58 PM.
Thread Starter
Le Mans Master
Joined: May 2002
Posts: 5,930
Likes: 39
From: Still cruising the BVI in my head.
St. Jude Donor '08
I just purchased one today for my C4 from Mid America. They are on sale for $39.99 for the 1994-2000 model. It may not do much but if I don't like it I can always put the stock housing back on. Also below is a link to an article where it was tested on a C4.
http://www.mamotorworks.com/corvette...rame=3.135.677
http://www.vetteweb.com/tech/vemp_06...ow_sensor.html
http://www.mamotorworks.com/corvette...rame=3.135.677
http://www.vetteweb.com/tech/vemp_06...ow_sensor.html
that's a great deal- just ordered mine!
Burning Brakes
Joined: Feb 2004
Posts: 861
Likes: 15
From: Fayetteville NC
I just purchased one today for my C4 from Mid America. They are on sale for $39.99 for the 1994-2000 model. It may not do much but if I don't like it I can always put the stock housing back on. Also below is a link to an article where it was tested on a C4.
http://www.mamotorworks.com/corvette...rame=3.135.677
http://www.vetteweb.com/tech/vemp_06...ow_sensor.html
http://www.mamotorworks.com/corvette...rame=3.135.677
http://www.vetteweb.com/tech/vemp_06...ow_sensor.html
MIKE
Team Owner
Joined: Apr 2001
Posts: 54,204
Likes: 180
From: S.W. Ohio. . . . . . NRA Life Member
Race Director
Joined: Apr 2004
Posts: 16,135
Likes: 5
From: Newberry FL
Cruise-In VIII Veteran
St. Jude Donor '07
Descreened mine and after my heads and cam install I kept throwing a code that dealt with the air flow through the MAF, grab a stock MAF with the screen, it went away and I have never had issues since. It really isn't worth it.
Just leave it alone.
Micah
Just leave it alone.
Micah
