Lets get the voting out with the do's and don'ts. Mine is off with the Vortex ram other wise you lose what you are suppose to be gaining.
Ok shoot what are your opinions?

 

I would say NEVER to take it out, just my opinion...I have never heard anything good coming of it.

My other car 95 Z28 is making well over 700 horsepower with the stock screened intake. I had a bored out descreened MAF and could never get it to run right, we through back in the factory screened one and picked up another 50 horse and it runs smooth. Read around on the LS1 boards, most that take them out end up regretting it. Just my $0.02

 

Dont have a Vortex, but a friend has. Since install he keeps throwing a lean code on Bank 1 and 2. His screen was removed. Could this cause the code or is it something else. Code was read and erased a number of times with my AutoXray 4000.

 

IMO gains are to be had if done correctly. I've got opinions about what should be done when and if you remove the screen but I can't prove it, just a theory.

from what I understand the screen doesn't really create that much restriction but is there to create a laminar flow across the MAF wires. When increasing the airflow across the MAF wires you also run the risk of increasing turbulance (which is what the screen is there to help prevent) which can and will cause the MAF to have errouneous readings which can lead to a rich condition and or poor performance thereby negating any performance gain you would have otherwise obtained.

you need to consider the 'complete' airflow path into the intake in order to pick up any gains from this type of mod.

i don't believe any major gains will be noticed if that is the only mod you do to the air intake system.

IMO in order to see any real gains from removing the screen you will need to also add a 'highflow' air intake filter / ducting system as well as remove any turbulance inducing configuration that is in the system. As I've pointed out before, but at this time am unable to prove, the alignment of the maf has, IMO, alot to do with turbulance. If you've noticed, the maf has an air diffusor integrated into it. The stock alignment of the maf has the diffusor aligned in a vertical position while the throttle body butterfly opens in a horizontal fashion. IMO, aligning the two will reduce the potential for turbulance in the system. By rotating the MAF so the diffusor corresponds with the throttle body air is allowed to pass directly into the intake without any resistance, airflow no longer gets backed up in the system with the side effect of turbulance and 'funky' readings of flow by the maf. IMO, positioning the MAF diffusor so it directs air into the openings of the throttle body as the butterfly opens is the easiest most cost effective mod. for airflow.

then again, i'm not in a position to verify this, since i've also done other mods at the same time but these are my thoughts.

I also believe the stock maf when positioned properly will deliever better airflow performance than a maf without the diffusor. The diffusor actually helps direct the airflow while one without the diffusor simply passes air without any directional assistance. IMO, anytime you can can help direct air where you want it, you will notice better flow than if you simply let air find it's own path.

 

I had the ram installed and every other corvette owner that has installed this Vortex here on LI has removed the screen. Not one has had a problem and they all insist that the screen will restrict the flow of air. I myself am a bit concerned that the screen does serve a purpose on protecting the engine from ingesting anything. Although that has to be very rare to say the least. Mine is out and guess what I through a code and I am gong to the dealer on Friday. Very curious on what the outcome will be I will let you all know.

 

I know about 4 people that took the screen out and they all get codes

 

I took mine out two days ago, just like i did on the C5-no codes yet.

 

Screen out....no codes here after 15 hundred miles

 

Here are their instructions

http://www.breathlessperformance.com...texInstall.asp

 

I agree. Our testing of the Z06 MAF with our Stinger SSM did not net favorable results.

There was a slight increase in power at high rpm, but at the expense of very poor Long Term Fuel Trims, which would require LS2Edit programming to bring the trims closer to baseline.

The laminar airflow honeycomb screen is really a must on the C6 intake (stock) and more important when going with a high flow intake system.

Jim Hall

 

My guess. Lean codes, bank 1 and bank 2.

Buy a new MAF sensor with the screen in. Once it is removed, you cannot reinstall it.

 

Why all these codes on the LS2's? LS6's came from the factory w/ no screens without any problems.

 

When I installed the Halltech w/ CAI, I also removed the screen, Then I got the codes in less than 5 miles. After speaking with Jim Hall I ended up buying a new MAF from A GM dealer @ $228.00, Ouch!! No problems since.

Rookie Mistake.


I guess not everything you read in the internet is true.....

 

Different calibrations in the ECM and MAF sensor. The Z06 MAF is not just the C6 MAF with the screen popped out.

The screened MAF flows 880 cfm. The C6 requires around 620 cfm to make 400 HP.

.

 

bottom line leace it alone is what i am gathering from this...right

 

Removed the screen with my Vortex install about 6 months ago. Not a single problem (detectable by me anyway).

Mike

 

see im having that same problem... i just got the halltect too and the check engine light is on. i thought it was either the maf or my car was running lean..... did your do that?

 

I will be getting my codes read tomorrow I will let you know what it says. I hope its not going to imply I need the screen back in because there goes another $250. Let me ask all who have had a code go off. Is the hose inserted through the top or side of the tube after the sensor in straight on yours or crooked. Mine is in crooked and loose I wonder if this is the reason for the code. Keep it up guys we may be on to something here. Let me know how yours looks Thanks Bill

 

I'm goind to put my screen back in-I want that 50 HP

 

They absolutely say no screen. They have had no problems since they changed the location of the air hose nipple connection but if the hose nipple is not sealed properly it will throw a code. Mine is crooked and not sealed. I will have to replace my tube with a new one $60. The air senser nipple has to be located correctly and installed straight and sealed. Well I will let you know how it turns out