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LS2 MAF Descreen?

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Old Jun 5, 2006 | 09:42 PM
  #21  
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Originally Posted by timd38
I got a deal for you. GM would not spend the money if it did not need to be there, but you can takes your off, if you want and I can leave mine on and we are both happy

Enjoy.
I didnt say it shouldnt be there. I said it should be there for engine protection against debris and not for airflow which could be done with a less obtrusive small matrix screen. A person foregoing the protection wont get a check engine light as my C6 doesnt have nor did my C5.

They spent lots of money on this car that worsened performance....starting with the tires.

The current C6 Z06 doesnt have a MAF/screen and it has the same path to the TB. A&A showed how the entire assembly eats up 20hp and they deleted it altogether on a SD tuned car.

Last edited by SpinMonster; Jun 5, 2006 at 09:47 PM.
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Old Jun 6, 2006 | 12:28 AM
  #22  
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Originally Posted by SpinMonster
Have the 'guy at ford' contact the GM design team that removed the screen from the 2002-2004 Z06 and let them know they made a mistake. Just wondering what makes a Ford mechanic better than an GM mechanic at these sorts of things (and an aircraft mechic).

There aren't 5 correct answers. The best flow is no obstruction. The screen is an obstruction no matter how small an obstruction it is.

EDIT: Personally upon looking at the size of the openings in the screen itself, I see only one thing: that the size of the openings in the screen allows only those particles through that fit into the quench area in the combustion chamber. Flow could have been directed with bigger openings so as to not have more cross sectional area used up....ie 1/10th the number of 'cells' in the screen. I conclude that the screen is only for an object getting through the paper air cleaners that would damage the head and piston in the quench area of the combustion chamber. Also why would you have a screen directing air in some special way before it has a bigger disruption behind it in the form of a mount and the sensors attached to it. If it wasnt for protection then why put it before this big object. Lastly, why is it the same on all carsn that have the same MAF? Wouldnt different cars need different air flow direction? The exact same MAF is on the C5 in a way different location before the airbridge.
The screen isn't on the C5 Z06 because the MAF that is used was from a Truck application and it was the only in service part number that had the correct cross section. The screen is for laminar airflow in questionable intake circuits that can occur with limited air space. If you feel a seat of pants difference I would suggest medication
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Old Jun 6, 2006 | 07:54 PM
  #23  
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The C5 Z06 has the same MAF with the screen removed.
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Old Jun 6, 2006 | 07:59 PM
  #24  
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Originally Posted by SpinMonster
The Z06 MAf (I bought one for my 2001 and have a spare) and the one in this C6 are identicle and have identicle part numbers and I own 3 of them if you want to buy one....I got them from Fred Beans. The one on my C6 which is in hand since I put a descreened one in the car has the same part number but with the screen. The order number specifies if it has the screen when they ship it.

You are 100% wrong on it being a different part. You may wish to check your info source on that one.

Edit: I also wish to take offense at the medication statement since I never said I felt any gain from it. I simply said it increases airflow to get rid of it according to Dave Hill and I know from personal experience that it doesnt throw codes. I take a few medications and dont appreciate the comment.
Where in my statement did I say it was a different part. Since I resonded directly via quote function and you did not say anything about seat of pants, therefore the remark was a general one directed to an earlier post from someone else, sorry for the confusion. The MAF for the Z06 is the same as the truck during those years. The screen was not used in the truck because it was not needed do to the intake parameters. You can go on with the Dave Hill story if you want but recheck the tapes. Also, this Z06 no screen vs C5 with screen was beat to death on this forum years ago.

Last edited by jimman; Jun 6, 2006 at 08:29 PM.
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Old Jun 6, 2006 | 10:08 PM
  #25  
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Agreed...off day
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Old Jun 7, 2006 | 08:19 AM
  #26  
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Originally Posted by SpinMonster
The C5 Z06 has the same MAF with the screen removed.
does that imply i can use a c5 z06 maf. is a new c5 z06 maf less expensive than a c6 version ??

the screen in the c6 version is approx. 1/8 inch thick. i believe it serves a dual purpose of helping keeping crap out of the intake/brake items up and to help create a smoother airflow past the sensors.

i'm not sure how effective it is at either purpose.

i've had my screen out a for about a year now and haven't had any problems. imo: if the screen stops something big enough to be stopped by the screen then the car has other problems. how did something that large get past the air filters. the air/flow past the filters is much smaller than what will fit though the screen, meaning the size of the item not the flow. if something large enough to be stopped by the maf screen is in the air system then that would lead me to believe that the air filters are either removed or have a huge hole in them.

just my .02 cents.
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Old Jun 7, 2006 | 09:12 PM
  #27  
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Removed my screen when i installed the Vortex Intake.......no problems, no check engine light. I don't know what difference it made because I changed the intake at the same time. Car seemed to have a little more pickup with the intake and screen removed????????
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Old Jun 8, 2006 | 01:05 PM
  #28  
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Originally Posted by Zig
does that imply i can use a c5 z06 maf. is a new c5 z06 maf less expensive than a c6 version ??

the screen in the c6 version is approx. 1/8 inch thick. i believe it serves a dual purpose of helping keeping crap out of the intake/brake items up and to help create a smoother airflow past the sensors.

i'm not sure how effective it is at either purpose.

i've had my screen out a for about a year now and haven't had any problems. imo: if the screen stops something big enough to be stopped by the screen then the car has other problems. how did something that large get past the air filters. the air/flow past the filters is much smaller than what will fit though the screen, meaning the size of the item not the flow. if something large enough to be stopped by the maf screen is in the air system then that would lead me to believe that the air filters are either removed or have a huge hole in them.

just my .02 cents.
Well you know the seals you get with aftermarket replacement filters, one of my friends just sucked up one of the seals in his intake in his Trans Am. maybe the screen is there incase something like that happens. or if the filters do get a hole in them or if the person doesn't put everything back together right. or like another guy on this forum who after 10,000 miles just realized his intake had fallen off. maybe it's a cheap way for GM to cover their asses and avoid costly warranty claims. but who knows.
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Old Jun 8, 2006 | 02:39 PM
  #29  
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Hmm, I think i'll be removing mine.
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