Discreensd Maf!
Drifting
Joined: Apr 1999
Posts: 1,261
Likes: 6
From: Middletown New Jersey
There are two reasons to de-screen a MAF - increased airflow (although you would need a pretty big motor to need this extra flow) and to lean out the AF mixture. According to TPIS' Insider hints book, the very small HP gain came from leaning out GM's conservative programmed A/F ratio during WOT operation. GM kept things to the rich side to reduce the chance of someone grenading their motor. During closed loop operation, the O2 sensor makes sure to keep the A/F at Stoich. (14.7 A/F if memory serves me correctly)
Drifting
Joined: Apr 1999
Posts: 1,261
Likes: 6
From: Middletown New Jersey
The descreened MAF will have slightly different flow characteristics than a fully screened MAF. The program in the chip is written assuming the airflow characteristics are that of a stock MAF. By taking the screens (and in my case the heat sinks) more air will flow through the MAF. Remember the MAF works by determining how many volts it takes to maintain a certain temp. of the hair size filaments. The filaments are contained within the smaller cylindrical tube inside the MAF. This is why some people who tune TPI MAF cars feel that the MAF scalars in the program need to be recalibrated whenever you modify the MAF.
Team Owner
Joined: May 2002
Posts: 24,337
Likes: 25
From: San Diego , CA Double Yellow DirtBags 1985..Z51..6-speed
By taking the screens (and in my case the heat sinks) more air will flow through the MAF. Remember the MAF works by determining how many volts it takes to maintain a certain temp. of the hair size filaments.
Now what?
Moderator Emeritus
Joined: Apr 2002
Posts: 54,756
Likes: 0
From: Always living in a state of Confusion.
Gone, but not Forgotten
Cruise-In 5, 6, 8 & 10 Veteran
St. Jude '03-'04-'05-'06-'07-'08-'09
\
I wonder why I am spending less and less time on the forum....
No, I do know.........more and more threads seem to end up with this kinda crap in it
Maybe we should tell the newbies to use the search engine for "kiss my ***" instead of starting worthless threads on topics that have already been covered...
It is nice that all threads don't end up just dry bare bone facts, nice to see a little color included........but I am really getting bored with these kinda posts..
Oh and CC I am not singleing you out, this practice has just become way too wide spread IMHO.....and amazingly well accepted by the majority of forum members
I wonder why I am spending less and less time on the forum....
No, I do know.........more and more threads seem to end up with this kinda crap in it
Maybe we should tell the newbies to use the search engine for "kiss my ***" instead of starting worthless threads on topics that have already been covered...
It is nice that all threads don't end up just dry bare bone facts, nice to see a little color included........but I am really getting bored with these kinda posts..
Oh and CC I am not singleing you out, this practice has just become way too wide spread IMHO.....and amazingly well accepted by the majority of forum members
Ok, I guess I need to explain myself then.
A senior forum member created a second username, Warp8, for the sole purpose of trolling threads and stirring up crap. Apparently he's afraid to say what he thinks using his normal username, so he's hiding behind another name. This is why I didn't give his response the time of day.
http://forums.corvetteforum.com/show....php?t=1767416
http://forums.corvetteforum.com/show....php?t=1768716
Back to your regularly scheduled program.
A senior forum member created a second username, Warp8, for the sole purpose of trolling threads and stirring up crap. Apparently he's afraid to say what he thinks using his normal username, so he's hiding behind another name. This is why I didn't give his response the time of day.
http://forums.corvetteforum.com/show....php?t=1767416
http://forums.corvetteforum.com/show....php?t=1768716
Back to your regularly scheduled program.
Keep it civil guys or this one will get locked. Not what the OP had in mind, I'm sure.
Moderator Emeritus
Joined: Apr 2002
Posts: 54,756
Likes: 0
From: Always living in a state of Confusion.
Gone, but not Forgotten
Cruise-In 5, 6, 8 & 10 Veteran
St. Jude '03-'04-'05-'06-'07-'08-'09
On second thought, the op hasn't posted in this/his thread since the 27th, so 
