[Z06] MAF does not have screen?
Thread Starter
Pro
Joined: Oct 2007
Posts: 676
Likes: 1
From: EL Paso Texas
MAF does not have screen?
installing halltech found my maf didnt have a screen?
it is a delphi unit. is it missing the screen?
anyone have a picture of a stock maf on a 2002 Z06? please post.
eddie
it is a delphi unit. is it missing the screen?
anyone have a picture of a stock maf on a 2002 Z06? please post.
eddie
Team Owner
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From: Right Corner Pocket of Illinois
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Not sure but I think the 01 has a screen and the 02 does not. 
Team Owner
Joined: Mar 2007
Posts: 35,139
Likes: 2,097
From: Right Corner Pocket of Illinois
No-IL Events Coordinator
2026 Corvette of the Year Finalist - Unmodified
2025 C6 of the Year Winner - Unmodified
2020 C6 of the Year Finalist - Unmodified
2020 Corvette of the Year Finalist (appearance mods)
2019 C6 of Year Winner (appearance mods)
2018 C6 of Year Finalist
St. Jude Donor '12 thru '26
That's correct, the 2001 Z06 MAF is screened, the 2002 thru 2004 are unscreened.
I'll take Z06's for $500 Alex...
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Race Director
Joined: Jul 2007
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From: Texas Hill Country
I always take off MAF screens. If nothing else, it's a good time.
Pro
Joined: Jul 2007
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From: San Diego CA
but you knew that already, of course, and just wanted to see if anyone else knows anything about cars and engines other than what you tell them.
Safety Car
Joined: Aug 2000
Posts: 4,933
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From: San Rafael CA
oh, you can guarantee that he will have driveability problems, because you said he would. nevermind the fact that GM changed nothing to compensate for the lack of a screen in the MAF, because, due to the design of ALL C5's intake tracts, the air is already flowing in a straight path, thus negating any need for an airflow-straightening screen.
but you knew that already, of course, and just wanted to see if anyone else knows anything about cars and engines other than what you tell them.
but you knew that already, of course, and just wanted to see if anyone else knows anything about cars and engines other than what you tell them.
Take a look at this thread .... and note people like Mike Mercury ... who has been doing Corvette work for YEARS recommend NOT to pull the screen ....
Look at the experience level of the people posting replies #4, 10, 15, 25, 28, etc .......
http://forums.corvetteforum.com/show...ght=MAF+screen
It is not just me recommending not to remove the screen .....
Pro
Joined: Jul 2007
Posts: 535
Likes: 1
From: San Diego CA
ok, thanks for the link.
goes to show that tuning and complete engine package are most important, not just throwing parts at an engine.
still, i think it is worth removing the screen, and that's what i did.
goes to show that tuning and complete engine package are most important, not just throwing parts at an engine.
still, i think it is worth removing the screen, and that's what i did.
Race Director
Joined: Jul 2007
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From: Texas Hill Country
I think the moral of the story here is not to open your mouth before you know what you are talking about. Now I want an apology from BlackZ and I want C5 to apologize to BlackZ. You both owe me a beer.
Burning Brakes
Joined: Mar 2007
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From: St. Peters MO
Sorry I couldn't resist the open shot 
Safety Car
Joined: Aug 2000
Posts: 4,933
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From: San Rafael CA
The PCM is programmed for a "stock" engine .... once you move outside that range, the PCM is either gonna throw codes
or try and "compensate" for the changes ... which means the changes are negated.I think we're both on the same page ... no need to worry about buying Higgs Boson a beer ....
Race Director
Joined: Jul 2007
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From: Texas Hill Country
You see, what I did not say in that thread is that I crashed cars with different varieties of active handling. I have also saved a ton of near crashes without it. When it starts kicking in and removing power and tapping different brakes when you are trying to work the gas and steering wheel it is BAD. Very different from this thread, my good man.
Pro
Joined: Jul 2007
Posts: 535
Likes: 1
From: San Diego CA
well now that we are all getting along, sort of, i will continue to play devils advocate...
i base the justification of MAF screen removal on the following:
1) MAF consists of heated filament elements ("wires" on CF, most commonly) that measure airflow based on how much they are cooled by the passing air, taking into account the measured ambient temp and barometric pressure
2) incoming airflow in C5 inlet tracts is primarily laminar, vastly reducing the need for a screen, as evidenced by 2002+ GM factory removal of such
3) MAF screen removal may allow slightly increased air flow over MAF wires, which will cool them more, which tells the PCM that more air is incoming, all within range of stock air/fuel tables
4) PCM adjusts fuel OR since PCM is tuned conservatively rich at higher engine speeds and throttle position from the factory, increased air leans out the mixture a bit, allowing greater power output
correct me where i am wrong.
i base the justification of MAF screen removal on the following:
1) MAF consists of heated filament elements ("wires" on CF, most commonly) that measure airflow based on how much they are cooled by the passing air, taking into account the measured ambient temp and barometric pressure
2) incoming airflow in C5 inlet tracts is primarily laminar, vastly reducing the need for a screen, as evidenced by 2002+ GM factory removal of such
3) MAF screen removal may allow slightly increased air flow over MAF wires, which will cool them more, which tells the PCM that more air is incoming, all within range of stock air/fuel tables
4) PCM adjusts fuel OR since PCM is tuned conservatively rich at higher engine speeds and throttle position from the factory, increased air leans out the mixture a bit, allowing greater power output
correct me where i am wrong.
Burning Brakes
Joined: Mar 2007
Posts: 1,158
Likes: 1
From: St. Peters MO
oh it's ok. I wasn't wrong and I also know what I am talking about. Have you seen the number of threads about guys crashing with TC/AH on? I will admit most of them are in the C6 section, lol.
You see, what I did not say in that thread is that I crashed cars with different varieties of active handling. I have also saved a ton of near crashes without it. When it starts kicking in and removing power and tapping different brakes when you are trying to work the gas and steering wheel it is BAD. Very different from this thread, my good man.
You see, what I did not say in that thread is that I crashed cars with different varieties of active handling. I have also saved a ton of near crashes without it. When it starts kicking in and removing power and tapping different brakes when you are trying to work the gas and steering wheel it is BAD. Very different from this thread, my good man.