Gains from 5.3 with bolt ons?
06-26-2010, 01:37 PM
#31
FormerVendor
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I know you are not going to want to hear this but I see you said that you removed the screen from the MAF sensor, is that correct? BIG mistake, that screen serves a good purpose of straightening the airflow before going across the actual metering element in the MAF sensor and does next to nothing for improving airflow. Just giving you a heads up.
06-26-2010, 04:28 PM
#32
nothing wrong with descreening the maf sensor. removes a major restriction in airflow. his problem with the misfire is gonna be the injector. my silverado had the same problem but it was number 1. i changed plug, wire, and coil, only to find out it was the injector. swapped em all out and no problems since. 160 thermostat wont lower your mileage if you get a custom tune at the same time. motor runs cooler, makes more power and therefore better mileage. for wat its worth. get lt headers, catback exhaust, cold air intake, efans, custom tune w/ 160 thermostat. buy parts as you can afford
06-26-2010, 04:44 PM
#33
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Klug is correct. The screen aligns airflow across the elements for the most precise measurement of airflow, all the while presenting almost no frontal area, thus almost undetectable pressure drop across the screen. Removing it eliminates almost no restriction, but increases the possibility of turbulent airflow across the elements, which are very sensitive to the "quality" of the airflow.
Doesn't mean your engine will necessarily run poorly, but it does mean that as the condition of your air filter changes (the variable), and the quality of the airflow changes as a result, the screen is not there to "condition" or smooth the air
flow.
Doesn't mean your engine will necessarily run poorly, but it does mean that as the condition of your air filter changes (the variable), and the quality of the airflow changes as a result, the screen is not there to "condition" or smooth the air
flow.
Last edited by 72te27; 06-26-2010 at 04:52 PM.
06-26-2010, 06:15 PM
#34
I've heard of guys having a nightmare trying to tune their trucks after descreening the MAF, as mentioned, it's purpose is to straighten the airflow so that the MAF can get a more precise reading...
Last edited by budhayes3; 06-26-2010 at 06:21 PM.
06-26-2010, 06:32 PM
#35
i removed the screen on every vehicle i have run. never a problem. removing it does alter the calibration of the maf sensor cause the air is moving thru it faster. simple as adjusting the settings in the tune if you have a problem with it. and if you check, all aftermarket maf have no screen. wanna have fun, check out the new style of maf gm is using. barely protrudes into the intake tube instead of having multiple wires that cross the tube
06-27-2010, 05:51 AM
#37
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FWIW, i have reinstalled the MAF last week just in case, but nothing has helped. I Need someone to let me know of the injectors from a 02 GM intake off of a 6.0 will work so i can swap them to see if it helps the missfire/hesitation with the codes.
06-27-2010, 06:16 AM
#38
i removed the screen on every vehicle i have run. never a problem. removing it does alter the calibration of the maf sensor cause the air is moving thru it faster. simple as adjusting the settings in the tune if you have a problem with it. and if you check, all aftermarket maf have no screen. wanna have fun, check out the new style of maf gm is using. barely protrudes into the intake tube instead of having multiple wires that cross the tube
On a side not, Charlie never had any tuning issues with my truck because of it.
06-27-2010, 01:23 PM
#40
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IMO I feel alot of people should read this entire piece as it is very well written and very true: http://www.gmtips.com/3rd-degree/dox...maf-screen.htm
FWIW to add to this article is I have never seen or heard of a descreened MAF on even a HEAVILY modified engine gain anymore than maybe 5-10 hp, and that's a big maybe. Its not worth hurting the accuracy of the sensor.
FWIW to add to this article is I have never seen or heard of a descreened MAF on even a HEAVILY modified engine gain anymore than maybe 5-10 hp, and that's a big maybe. Its not worth hurting the accuracy of the sensor.
Last edited by KLUG'S SS; 06-27-2010 at 01:31 PM.