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What is up with the metal screen the the TB??

This is a discussion on What is up with the metal screen the the TB?? within the General Help forums, part of the LSx Technical Help Section category; Does it promote laminar airflow for beater breathing or just a hinderance? How do you take it out and what ...

  1. #1
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    What is up with the metal screen the the TB??

    Does it promote laminar airflow for beater breathing or just a hinderance?

    How do you take it out and what HP increase would I see? Seems like a good last chance filter if no perf increase

    Jim in Detroit 2000 SS M6

  2. #2
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    Quick Silver
    2002 Z06

    I've heard many things about it. It is a last chance filter for the MAF but you can take it out. I was skeptical at first, but if you check out slp's website they sell an aftermarket MAF and they state that taking the screen out will add over 200 cfm but it is not recommended for street use. So taking the screen out is deffinetly a bonus stock or not. I have had mine off for about 10,000 miles and had no problems. Here is a link to slps site to show you what i'm talking about http://www.slponline.com/view_product.asp?P=23062

  3. #3
    member toneloc60's Avatar
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    I took mine out when I ported the MAF. I haven't had any problems.

    It's really simple to do. I think I tapped mine out from the back side with a hammer and screwdriver.

  4. #4
    Member Sprfstz28's Avatar
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    I spent 70 dollars on maf ends, they replace the factory metal housing with plastic housing that has no mesh screen or metal divider... and its working great

  5. #5
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    MTI in houston said its not needed and can be restrictive... they removed it from my car ... but it is a safety precaution.. A guy said he has found stuff on it but I think thats caused from a bad set install of a lid or filter.

  6. #6
    Senior Member 02z28ls1's Avatar
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    It's there as a last chance filter as previously stated-if you pop the hood constantly and take good care of your vehicle like the majority of people on this forum-you won't need it.Now if you sell it to someone .........the OEM has to worry about the person who wouldn't know what an air filter was if it punched them in the face.

  7. #7
    Member Fedge's Avatar
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    Quote Originally Posted by Sprfstz28
    I spent 70 dollars on maf ends, they replace the factory metal housing with plastic housing that has no mesh screen or metal divider... and its working great
    that's what I'm looking for...ends...where would I find one...I've done searches to no prevail

  8. #8
    Member Sprfstz28's Avatar
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    I don't think any of the sponsors to this site carry them, if they do, I apologize, but fedge, I'll PM ya where I got them.
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  9. #9
    member since may 2000 nhraformula's Avatar
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    i found a cigarette butt in mine.
    i suggest leaving it.
    i dont see taking the screen out will net you more than 2-3 h.p
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  10. #10
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    It's supposed to protect the MAF wire

  11. #11
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    I found leaves, trash and debris in mine.

    It's staying!

  12. #12
    Senior Member Danger731's Avatar
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    I found a mustang emblem in mine , it was all rusty. I pried it out and gained 50 rwhp.
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  13. #13
    Member keliente's Avatar
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    Quote Originally Posted by TommySS
    It's supposed to protect the MAF wire
    No, it is supposed to straighten & smooth airflow.

    I knocked mine out on my daily driven car. My lid seals very tightly so I don't worry about anything coming through that shouldn't.

    I actually took it out on the dyno. Ran the car, took the screen out (in about a minute) ran it, saw 5hp.

  14. #14
    Member Fedge's Avatar
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    Quote Originally Posted by Danger731
    I found a mustang emblem in mine , it was all rusty. I pried it out and gained 50 rwhp.
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  15. #15
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    Quote Originally Posted by keliente
    No, it is supposed to straighten & smooth airflow.

    I knocked mine out on my daily driven car. My lid seals very tightly so I don't worry about anything coming through that shouldn't.

    I actually took it out on the dyno. Ran the car, took the screen out (in about a minute) ran it, saw 5hp.

    If GM felt we could do w/o it, it wouldn't be there, and yes, it serves several purposes, one of which is to protect the MAF wire.

  16. #16
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    The Z06 doesn't use the screen correct?

  17. #17
    Member DaddySS's Avatar
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    It is also supposed to even out the airflow over the MAF wire. I don't see the gains outweighing the drawbacks.

  18. #18
    Member Fedge's Avatar
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    Quote Originally Posted by TommySS
    If GM felt we could do w/o it, it wouldn't be there, and yes, it serves several purposes, one of which is to protect the MAF wire.
    good point. I'm gonna go flatten my a/m y-pipe when it gets here, cuz that's what GM did to the stock one











    relax...humor ar ar

  19. #19
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    Quote Originally Posted by Fedge
    good point. I'm gonna go flatten my a/m y-pipe when it gets here, cuz that's what GM did to the stock one




    relax...humor ar ar

    Interesting point. The factory Y-pipe was indeed flattened for increased ground clearance, but is it the same diameter as aftermarket (round) pipes?

    Compromises everywhere = be it the MAF screen, squashed y-pipe.

    Thanks for the humor.

  20. #20
    Member jmhvenom's Avatar
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    I had lot of problems with mine when I descreened, I got a lot of detonation (i.e. pinging). I would suggest a tune if you descreen and port it. I have found stuff on my screen before, but I also did the FRA and have SLP airlid that does not seem to fit very well and smooth bellows which are not the best fit either.

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