MAF Sensor....something you should know...
Thread Starter
Melting Slicks
Joined: Jun 2007
Posts: 2,704
Likes: 4
From: Lone Star State
MAF Sensor....something you should know...
Spoke with my tuner....which happens to be a GM TECH 1 who has 26 yrs experience and been all over the country (he knows his stuff). My MAF on my Z went to hell. I have another one being installed.....an LS2 MAF sensor. It's the same as the Ls6, but with a screen. He recommended doing this because the 1.) The sensor is cheaper and 2.) The screen helps straighten out some of the turbulence in the airflow in order for the MAF wire to get a clean reading
SHOULD GET BETTER FUEL ECONOMY BECAUSE OF THIS. Thought I would share this tid bit. Better fuel economy and a cheaper GM part....hmmm-----its a no brainer
SHOULD GET BETTER FUEL ECONOMY BECAUSE OF THIS. Thought I would share this tid bit. Better fuel economy and a cheaper GM part....hmmm-----its a no brainer
Pro
Joined: Jun 2007
Posts: 632
Likes: 6
From: St. Louis Missouri
This is one of those controversial topics. whether to descreen the MAF or not. Why did the GM engineers decide to descreen the MAF for the Z06?? Must have had a reason. People have been showing improved track results from taking the screen out. I know there are tuners out there that swear you need the straightening capabilities of a screen but others show improvements without the screen. What are you going to do?
I do like the heads up about the LS2 MAF though. Does it read the same or does the PCM need to be reprogrammed when you use one?
I do like the heads up about the LS2 MAF though. Does it read the same or does the PCM need to be reprogrammed when you use one?
Thread Starter
Melting Slicks
Joined: Jun 2007
Posts: 2,704
Likes: 4
From: Lone Star State
1.) Screen removed will give you min. hp gain, worse than stock fuel economy.
2.) Screen in will give you more fuel economy, but will lose maybe 3 hp.
Reasoning is the air flowing through passes through the screen, smothing out the air flow, as it hits the sensors.
2.) Screen in will give you more fuel economy, but will lose maybe 3 hp.
Reasoning is the air flowing through passes through the screen, smothing out the air flow, as it hits the sensors.
Drifting
Joined: Oct 2003
Posts: 1,932
Likes: 4
From: Warrenville Il
Do you need an adapter of some sort to connect to an LS2 MAF?
If so what are you using?
Also interested in the retuning aspect as well, is this also necessary?
Whats the size difference between the 2?
If so what are you using?
Also interested in the retuning aspect as well, is this also necessary?
Whats the size difference between the 2?
Banned Scam/Spammer
Joined: Jul 2006
Posts: 2,911
Likes: 10
From: Simi Valley CA
This is true... because ANYTHING in the way of air flow will slow it down. You can direct it, but you will have a loss of flow. If you want, I can pull it out of my flow dynamics books... somewhere.
1. With the screen out.. more flow. no direction
2. Screen in... directed flow, but a loss of flow.
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Race Director
Joined: Dec 2000
Posts: 19,304
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From: San Diego CA
This why many of those C5 Z06 owners who have installed an aftermarket intake filter setup would be greeted with lean codes. The increased flow is too much for the ECU to compensate for. Those who have screens MAFs do not have this problem.
Melting Slicks
Joined: Feb 2006
Posts: 3,191
Likes: 43
From: Scottsdale Az
1) I bet you don't notice the fuel economy increase or the hp decrease for that matter.
2) Your car came from the factory without a screen. I guess GM engineers had no clue what they were doing according to your buddy...
In conclusion, it's a cheaper part that works which is good, but I wouldn't go out of my way for it.
2) Your car came from the factory without a screen. I guess GM engineers had no clue what they were doing according to your buddy...
In conclusion, it's a cheaper part that works which is good, but I wouldn't go out of my way for it.
Thread Starter
Melting Slicks
Joined: Jun 2007
Posts: 2,704
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From: Lone Star State
I guess GM engineers had no clue what they were doing according to your buddy...
I guess he wouldnt know any thing
SO I GUESS...AND CORRECT ME IF I AM WRONG...GM ENGINEERS WANTED THE CLB ISSUE IN THE C5'S, CORROSION IN THE GROUND CONNECTORS AND PCM, AND SO FORTH.
All I was saying is that it is possible to use the LS2 MAF and the screen helps to direct flow better. Your not going to gain 15 mpg or increase/decrease 20 hp....but the PHYSICS of the screen/no screen makes absolute sense.
with all that being said....you are entitled to your own opinion
Last edited by 4SFED Z; Mar 24, 2009 at 01:55 PM.
Race Director
Joined: Mar 2001
Posts: 10,030
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From: Prescott AZ
St. Jude Donor '04
Well my "buddy" has 26 yrs experience as a GM Tech, been all over the country, and won GM tech awards..etc....
I guess he wouldnt know any thing
SO I GUESS...AND CORRECT ME IF I AM WRONG...GM ENGINEERS WANTED THE CLB ISSUE IN THE C5'S, CORROSION IN THE GROUND CONNECTORS AND PCM, AND SO FORTH.
All I was saying is that it is possible. Your not going to gain 15 mpg or increase/decrease 20 hp....but the PHYSICS of the screen/no screen makes absolute sense.
with all that being said....you are entitled to your own opinion
I guess he wouldnt know any thing
SO I GUESS...AND CORRECT ME IF I AM WRONG...GM ENGINEERS WANTED THE CLB ISSUE IN THE C5'S, CORROSION IN THE GROUND CONNECTORS AND PCM, AND SO FORTH.
All I was saying is that it is possible. Your not going to gain 15 mpg or increase/decrease 20 hp....but the PHYSICS of the screen/no screen makes absolute sense.
with all that being said....you are entitled to your own opinion
