Descreening an MAF
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The tb bypass was worth it to me... but then again i live in AZ.... Descreening the maf may give you some kinda gain but... you probably would have to move the maf in front of the throttle body... It might help it be more accurate.. T/A's and cameros have no screens.. So why wouldnt it work on a full size?
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Originally Posted by ONLYA4.8L
The tb bypass was worth it to me... but then again i live in AZ.... Descreening the maf may give you some kinda gain but... you probably would have to move the maf in front of the throttle body... It might help it be more accurate.. T/A's and cameros have no screens.. So why wouldnt it work on a full size?
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Originally Posted by ONLYA4.8L
The tb bypass was worth it to me... but then again i live in AZ.... Descreening the maf may give you some kinda gain but... you probably would have to move the maf in front of the throttle body... It might help it be more accurate.. T/A's and cameros have no screens.. So why wouldnt it work on a full size?
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After descreening the following happened.
1.) My VE tables got all screwed up. Resulting in a rich-lean-rich pattern during normal driving.
2.) My Manifold Pressure thresholds changed, which caused the VE table messup. (also cause i have a vacuum referenced FPR)
3.) The MAF calibrations went from being within 7-10% to being off more than 20%.
4.) Created a very noticable "deadspot" around 2200 to 3000 rpms.
Fortuantly, i have HPTuners and took several hours of logging to get it running good again. If i could go back i would have left the damn thing alone.
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Originally Posted by ONLYA4.8L
The tb bypass was worth it to me... but then again i live in AZ.... Descreening the maf may give you some kinda gain but... you probably would have to move the maf in front of the throttle body... It might help it be more accurate.. T/A's and cameros have no screens.. So why wouldnt it work on a full size?
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Another vote for: Leave it in there! It came with one for a reason.
I took the screen out of my 2001 3.8L Impala. It now whistles when you accelerate.
Though it still gets 26-28 mpg.
It gets up and goes pretty good for being a NA V6 with just a K&N drop in filter.
Believe it or not, there are quite a few bolt on mods for the Impala with the 3.8L.
Have been looking for a decent looking factory Impala SS S/C on ebay.
Haven't been able to find one though.
Not sure what all would be needed to add it though.
Jim
I took the screen out of my 2001 3.8L Impala. It now whistles when you accelerate.
Though it still gets 26-28 mpg.
It gets up and goes pretty good for being a NA V6 with just a K&N drop in filter.
Believe it or not, there are quite a few bolt on mods for the Impala with the 3.8L.
Have been looking for a decent looking factory Impala SS S/C on ebay.
Haven't been able to find one though.
![Sad](https://www.performancetrucks.net/forums/images/smilies/LS1Tech/gr_sad.gif)
Not sure what all would be needed to add it though.
Jim
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Originally Posted by ONLYA4.8L
The tb bypass was worth it to me... but then again i live in AZ.... Descreening the maf may give you some kinda gain but... you probably would have to move the maf in front of the throttle body... It might help it be more accurate.. T/A's and cameros have no screens.. So why wouldnt it work on a full size?
The LS1 Camaro and firebirds used the older style 75mm MAFS while the Vettes used the newer 85mm screens just like the 99+ 4.8, 5.3, 6.0 and 8.1L trucks do.
peace
hog