Removing screen on intake install
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by BUCKSC6
If you take into consideration that the stock MAF with screen flows, over 850 CFM from the factory, you will see its a waste of time unless you have rebuilt your motor to race specs and added big heads and cam.
Just marketing hype! Ask any real F body racer!
AK
Just marketing hype! Ask any real F body racer!
AK
overlay the two alignments and find the useage area, which has more ?
Instructor
Joined: Apr 2005
Posts: 186
Likes: 0
Rotate MAF 90 degrees.
Originally Posted by Zig
but, how has the temp. been around there lately ? has it been cooler ? could the responsiveness be attributed to a drop in temp . ?
The car runs great.
One of the reasons why I waited to comment was to factor the temps out. The temps dipped before I made the adjustment, but my car never ran like it's running now.To me the engine feels like it has more torque overall but particularly in the low-end and midrange band. The power comes in much sooner in the rev band compared to before. I don't even apply full throttle in traffic (in low gear) anymore out of fear of getting sideways.
For those of you who read this: if you're interested in increased performance, if you don't at least try this mod you're nuts! There is nothing to lose.
Instructor
Joined: Apr 2005
Posts: 186
Likes: 0
If the point of removing the screen is to improve performance, why don't you just rotate the MAF 90 degrees instead of removing the screen? It's a lot less trouble and it's reversible. Rotating the MAF 90 degrees reduces turbulence and alters the MAf signal. My car is more of a brute now with the MAF rotated.
Last edited by KGB6; Dec 12, 2005 at 12:07 PM.
Instructor
Joined: Apr 2005
Posts: 186
Likes: 0
Originally Posted by Madd_Matt
Is there a trick to rotating the MAF. The connection wires won't reach on mine when rotated - either direction. Any clues?
Drifting
Joined: Jun 2005
Posts: 1,824
Likes: 1
From: Middleboro Massachusetts
Originally Posted by KGB6
Zig,
The car runs great. One of the reasons why I waited to comment was to factor the temps out. The temps dipped before I made the adjustment, but my car never ran like it's running now.
To me the engine feels like it has more torque overall but particularly in the low-end and midrange band. The power comes in much sooner in the rev band compared to before. I don't even apply full throttle in traffic (in low gear) anymore out of fear of getting sideways.
For those of you who read this: if you're interested in increased performance, if you don't at least try this mod you're nuts! There is nothing to lose.
The car runs great.
One of the reasons why I waited to comment was to factor the temps out. The temps dipped before I made the adjustment, but my car never ran like it's running now.To me the engine feels like it has more torque overall but particularly in the low-end and midrange band. The power comes in much sooner in the rev band compared to before. I don't even apply full throttle in traffic (in low gear) anymore out of fear of getting sideways.
For those of you who read this: if you're interested in increased performance, if you don't at least try this mod you're nuts! There is nothing to lose.
I had to turn my MAF 90 degrees anyway so I could close my hood. I relocated my MAF it now backs up to my throttlebody. The reason was for an accurate read on the IAT.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by KGB6
The connection wire is being held in place by a clip, you have to remove it in order to release the slack.
http://forums.corvetteforum.com/phot...cat/500/page/1
yes, the wire that connects to the maf has a clip on it that clips the wire in place (not the clip that connects thye wire to the maf but the clip that simply keeps the wire from flapping all over the place). you can just undo the clip and route the wire, no longer using the clip.
Last edited by Zig; Dec 13, 2005 at 06:34 AM.
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Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by zo6vetteman2003
I had to turn my MAF 90 degrees anyway so I could close my hood. I relocated my MAF it now backs up to my throttlebody. The reason was for an accurate read on the IAT. would you mind sharing a pic of your intake ? I'd be interested in seeing your setup.i don't know how well or if it even works on any other years.
i haven't looked at the the design of other year intakes.
this mod. is specific to the c6 air intake. i imagine it would work with any other year as long as the configuration (air flow pathway) is pretty much the same.
yes, i agree, imo the closer one can get the maf to the throttlebody the more accurate it's gonna be.
Racer
Joined: May 2005
Posts: 415
Likes: 0
From: Cocoa Florida
Originally Posted by par34n5
Lets get the voting out with the do's and don'ts. Mine is off with the Vortex ram other wise you lose what you are suppose to be gaining.
Ok shoot what are your opinions?
Ok shoot what are your opinions?
Instructor
Joined: Apr 2005
Posts: 186
Likes: 0
[QUOTE=Zig]if you look closely at this pic. you will see the position that my maf has been rotated too.
http://forums.corvetteforum.com/phot...cat/500/page/1
QUOTE]
I rotated my MAF counter clockwise from the driver's seat perspective.
http://forums.corvetteforum.com/phot...cat/500/page/1
QUOTE]
I rotated my MAF counter clockwise from the driver's seat perspective.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
[QUOTE=KGB6]
is that placing the Delphi module on the bottom ? I rotated mine so the module is on the top.
does this rotation place the two wire posts (inside the maf) on the bottom. inside the maf there is three posts. two on one side and one on the other. if i recall correctly, it uses the two sets to get comparision measurements.
it would be interesting to see if there is, and what type of, difference in the intake related numbers for the three maf alignment positions (stock, module on top, module on bottom).
airflow and map numbers would interesting, especially gathered during day-to-day as well as some spirited driving numbers.
Originally Posted by Zig
if you look closely at this pic. you will see the position that my maf has been rotated too.
http://forums.corvetteforum.com/phot...cat/500/page/1
QUOTE]
I rotated my MAF counter clockwise from the driver's seat perspective.
http://forums.corvetteforum.com/phot...cat/500/page/1
QUOTE]
I rotated my MAF counter clockwise from the driver's seat perspective.
does this rotation place the two wire posts (inside the maf) on the bottom. inside the maf there is three posts. two on one side and one on the other. if i recall correctly, it uses the two sets to get comparision measurements.
it would be interesting to see if there is, and what type of, difference in the intake related numbers for the three maf alignment positions (stock, module on top, module on bottom).
airflow and map numbers would interesting, especially gathered during day-to-day as well as some spirited driving numbers.
Drifting
Joined: Jun 2005
Posts: 1,824
Likes: 1
From: Middleboro Massachusetts
Originally Posted by Zig
what ? would you mind sharing a pic of your intake ? I'd be interested in seeing your setup.
i don't know how well or if it even works on any other years.
i haven't looked at the the design of other year intakes.
this mod. is specific to the c6 air intake. i imagine it would work with any other year as long as the configuration (air flow pathway) is pretty much the same.
yes, i agree, imo the closer one can get the maf to the throttlebody the more accurate it's gonna be.
would you mind sharing a pic of your intake ? I'd be interested in seeing your setup.i don't know how well or if it even works on any other years.
i haven't looked at the the design of other year intakes.
this mod. is specific to the c6 air intake. i imagine it would work with any other year as long as the configuration (air flow pathway) is pretty much the same.
yes, i agree, imo the closer one can get the maf to the throttlebody the more accurate it's gonna be.
Burning Brakes
Joined: Mar 2003
Posts: 1,030
Likes: 0
From: Pittsburgh PA
Originally Posted by Zig
what ? would you mind sharing a pic of your intake ? I'd be interested in seeing your setup.
i don't know how well or if it even works on any other years.
i haven't looked at the the design of other year intakes.
this mod. is specific to the c6 air intake. i imagine it would work with any other year as long as the configuration (air flow pathway) is pretty much the same.
yes, i agree, imo the closer one can get the maf to the throttlebody the more accurate it's gonna be.
would you mind sharing a pic of your intake ? I'd be interested in seeing your setup.i don't know how well or if it even works on any other years.
i haven't looked at the the design of other year intakes.
this mod. is specific to the c6 air intake. i imagine it would work with any other year as long as the configuration (air flow pathway) is pretty much the same.
yes, i agree, imo the closer one can get the maf to the throttlebody the more accurate it's gonna be.
Burning Brakes
Joined: Mar 2003
Posts: 1,030
Likes: 0
From: Pittsburgh PA
Originally Posted by aaaaa
I don't pretent to know but it seems to me that some distance is needed to allow time for the CPU to react to the air flow. in the c5 the mAF was farther away than the C6. Is that because GM upgraded the CPU to run faster?
I don't pretend to know but it seems to me that some distance is needed between the maf and the TB to allow time for the air flow sensors to react. The C5 maf was further away than the C6. Did GM upgrade the CPU or the sensors to respond faster?
On older FI systems there were resistive wires in the TB that responded to temperature. These wires heated up and air flowing past them would cool them. The wires changed resistance with temperature and this resistance was read and used to adjust fuel flow. All of this took time and though I'm sure todays systems are much faster there would still be some delay. If the maf was too close to the TB could this affect response time and therefore mixture?
Drifting
Joined: Jun 2005
Posts: 1,824
Likes: 1
From: Middleboro Massachusetts
Originally Posted by aaaaa
Not really what I wanted to say.
I don't pretend to know but it seems to me that some distance is needed between the maf and the TB to allow time for the air flow sensors to react. The C5 maf was further away than the C6. Did GM upgrade the CPU or the sensors to respond faster?
On older FI systems there were resistive wires in the TB that responded to temperature. These wires heated up and air flowing past them would cool them. The wires changed resistance with temperature and this resistance was read and used to adjust fuel flow. All of this took time and though I'm sure todays systems are much faster there would still be some delay. If the maf was too close to the TB could this affect response time and therefore mixture?
I don't pretend to know but it seems to me that some distance is needed between the maf and the TB to allow time for the air flow sensors to react. The C5 maf was further away than the C6. Did GM upgrade the CPU or the sensors to respond faster?
On older FI systems there were resistive wires in the TB that responded to temperature. These wires heated up and air flowing past them would cool them. The wires changed resistance with temperature and this resistance was read and used to adjust fuel flow. All of this took time and though I'm sure todays systems are much faster there would still be some delay. If the maf was too close to the TB could this affect response time and therefore mixture?
Last edited by zo6vetteman2003; Dec 14, 2005 at 06:03 PM.
Safety Car
Joined: Dec 2004
Posts: 3,565
Likes: 5
From: stafford country, va. Avatar: Me on turn 3 @ Bristol (The World's Fastest Half-Mile)
Originally Posted by rulez
I am going to rotate the MAF, ride for about a month and put it on the rollers Jan 14th. My car is stock, but has a tune. I'll post the results if anyone is interested.
Racer
Joined: May 2005
Posts: 415
Likes: 0
From: Cocoa Florida
Originally Posted by par34n5
Came on a few days later I would say I cycled it three or four times. I had it cleared and so far nothing yet? Vortex Owner