Do I Hack Out The Honey Combs In The Gm 3" Mass Or Leave It The Way It Is???

[gsxstac]

DO I HACK OUT THE HONEY COMBS IN THE GM 3" MASS OR LEAVE IT THE WAY IT IS???

 

[azteck2]

I left mine the way it was... i still have plenty of flow!

 

[THEDUKE]

Originally posted by gsxstac
DO I HACK OUT THE HONEY COMBS IN THE GM 3" MASS OR LEAVE IT THE WAY IT IS???

Unless you are running some very big stuff leave it in. It flows 2 to 3 times more stan stock the way it is.

 

[gsxstac]

well i'm runnin a 20g right now and will be upgrading to a 60 trim shortly.

 

[THEDUKE]

Originally posted by gsxstac
well i'm runnin a 20g right now and will be upgrading to a 60 trim shortly.

I am running a 60-1 & still have not seen the need to gut the mas yet. You keep divability with the mass uncut.These mafs flow around a 1000cfm.I believe I would leave it along for now anyway & see how it works when you get your 60.But I also have seen the hipo aftermarket gm maf has no honeycomb so maybe its worthy of doing,if you have a extra it would be worth trying.If you gut it let me know how it works. Thank You & good luck.

 

[QuickerDSM]

FWIW, I have a 97 Z28 as my "other" car. When I first bought the car everything was stock including the MAF (3" version). I drove it stock for a couple months and eventuall knocked out the honeycomb. I didn't notice any difference at all, in performance drivability. Knock it out if it makes you feel better but I doubt it will make any significant difference one way or the other.

My .02 cents.

Mike

 

[LethalEagle]

I can't remember where I found this , but it should help.....

MAF Sensor
The MAF Sensor uses hot wires inserted in a known cross sectional area to measure airflow. The MAF Sensor and the IAT Sensor output signals to the PCM determine the injector pulse time during Open Loop Condition. The MAF output signal is dependant on the resistance in the wire due to the wire temperature. The temperature is a function of the air velocity, as the faster the velocity the lower (cooler) the wire temperature. So, as the velocity of the air increases (acceleration) the wire cools and sends a signal to the PCM to lengthen the pulse time of the injectors to deliver more fuel in order to maintain the desired A/F ratio of 14.7:1.
In front of the heated wire is a screen. Many people are suggesting that improved airflow will be gained by cutting the screen out of the MAF. It is not recommend that this be done on an F-body. Most people mistake this screens purpose as preventing debris from hitting the hot wires in the MAF (that is what the air filter is for). Actually the screen is a bank of straightening vanes used to straighten the airflow before passing by the hot wires. Eddies and vortices (turbulence) in the MAF will cause inaccurate readings. Straightening vanes are used in most mass flow measurement situations where 10 diameters of straight upstream conduit are not available. The F-body intake does not meet this requirement.
n accurate MAF sensor is critical for the engine's fuel/air ratio adjustments. So, what happens when the screen is removed? The flow (mass) is the same, BUT without the screen (which is a restriction) the velocity is lower. Lower velocity means a hotter wire temperature which equates to a LOWER flow! So the PCM adjusts the injectors to provide LESS fuel. Since the HO2 sensors do not provide input when the MAF is online the PCM does not adjust for the LEAN condition, until it goes back into Closed Loop Condition.

 

[swordfish]

That maf will flow up to 1250 cfm. Your gonna have to upgrade to one helluva turbo before you need to start hacking.

jeff

 

[greathuskie]

hmm dont Z06's come descreened from the factory...

 

[THEDUKE]

Originally posted by swordfish
That maf will flow up to 1250 cfm. Your gonna have to upgrade to one helluva turbo before you need to start hacking.

jeff [/QUOT I dont think its worh hacking these mafs, but just wandering what does the 3 1/2 maf flow it is what I am running.

 

[swordfish]

Woops. The numbers I posted are for a 3.5" MAF and not a 3". Although the 3 inch MAF still doesnt need to be messed with in our applications.

jeff

 

[tsiawd92]

One of my freinds has a TA, and we gutted his. SLP sells a "high perfomance" one, and it not hard to make it yourself. First we took out the screen, and take the mass apart, it is 3 peices the sensor, and the two aluminum ends. Remove the pieces of aluminum in the middle of the ends, and we removed some of the inner diameter of the ends and polished them. I couldn't tell any immediate diffrence, but it didn't hurt performance any.