Just performed the "Schwing MAF Screen Mod" -gonna do some 'sprited' driving b4 it gets too humid...
08-11-2002, 09:05 AM
#1
AudiWorld Super User
Thread Starter
Just performed the "Schwing MAF Screen Mod" -gonna do some 'sprited' driving b4 it gets too humid...
<img src="http://home.attbi.com/~uhclem/images/mafscreen.jpg">
Will post results later
Will post results later
08-11-2002, 09:16 AM
#4
Elder Member
Join Date: May 2001
Posts: 11,413
Likes: 0
Received 0 Likes
on
0 Posts
unrelated to MAF screen but........ i got a compliment on the sidelights the other day Jeff.......
was parking (leaving actually) at the mall one evening and a guy going to his car saw me unlock the TT... apparently it caught his eye (it was fairly dark) right off and he asked about it and said he really liked the look. When I turned on the xenons and showed him how perfectly the color matched, he was very impressed. lol I didn't see what he was drivin though.
08-11-2002, 09:32 AM
#6
AudiWorld Super User
Join Date: Sep 2001
Location: Manhattan, NY
Posts: 11,257
Likes: 0
Received 0 Likes
on
0 Posts
any idea what you removed or you just did it because schwing and a few others said it
will gain minimal results that are not worth the consequences.. So what will you do if something goes wrong with your car? Bring it to the dealership? Honestly, if your looking for every ounce of performance what are you doing with a roadster? Okay, scratch that.. Why aren't you removing weight? Sorry, but this is ridiculous.. Ask any real automotive engineer what they think about doing this and see what their comment is.. ****, John S our own private automotive engineer had this to say in a post of his.. eat it up and enjoy your new found free hp..
>"The Factory calibrates the intake system (filter, filter box, MAF &
>hose to turbo intake) for the system mass flow as appose to just mass
>flow through MAF ... this data also lives in the ecu look up tables.
>This takes into account for any flow asymmetry due to the shape of the
>intake. The screen in front of the maf conditions the flow or averages
>it out (sort of like your kitchen sink faucet... water flows out of it
>much smoother with the screen than without). So if the screen were to
be
>removed, chances are very high that the ECU will receive higher than
>normal mass flow rates and the engine will run rich. The reason for
this
>is that the flow velocity through the cylinder or housing becomes
>parabolic without the screen there to average it out. With the screen
>the flow velocity becomes more like square wave with rounded corners."
>
>If you really decide to do this, proceed with LOTS of caution.
Hey if your after all the performance you can ****** up look into a BOV, they do hold boost better..
>"The Factory calibrates the intake system (filter, filter box, MAF &
>hose to turbo intake) for the system mass flow as appose to just mass
>flow through MAF ... this data also lives in the ecu look up tables.
>This takes into account for any flow asymmetry due to the shape of the
>intake. The screen in front of the maf conditions the flow or averages
>it out (sort of like your kitchen sink faucet... water flows out of it
>much smoother with the screen than without). So if the screen were to
be
>removed, chances are very high that the ECU will receive higher than
>normal mass flow rates and the engine will run rich. The reason for
this
>is that the flow velocity through the cylinder or housing becomes
>parabolic without the screen there to average it out. With the screen
>the flow velocity becomes more like square wave with rounded corners."
>
>If you really decide to do this, proceed with LOTS of caution.
Hey if your after all the performance you can ****** up look into a BOV, they do hold boost better..
Trending Topics
08-11-2002, 10:00 AM
#10
AudiWorld Super User
Join Date: Sep 2001
Location: Manhattan, NY
Posts: 11,257
Likes: 0
Received 0 Likes
on
0 Posts
its not how adventurous you are
its how dumb you are.. and you aren't dumb.. Ive told knowledgeable S4 owners about this and they laughed their *** off.. 
one kid street races for large sums of money and ever hear about me taking it off? ****, hes got a lot more reason to sqeeze every ounce of power out of his car then anyone else on the forum.. Am I wrong? yeah, which is exactly why apr say its an important part... yeah I must be the idiot.. mah baddd
one kid street races for large sums of money and ever hear about me taking it off? ****, hes got a lot more reason to sqeeze every ounce of power out of his car then anyone else on the forum.. Am I wrong? yeah, which is exactly why apr say its an important part... yeah I must be the idiot.. mah baddd