Gm Mas

[TJGoSurf]

I kept searching and looking thru the tech articles. But there are none for using a GM MAS. I know some domestic guys that just gave me one as it was just an extra part laying around. I dont have a need for it yet. But I dont want to add hard IC piping without taking into consideration the advantages of using one.

 

[Spydergst97]

u can use a maf trans with it and vent ## blow off valve it also is bigger an show air reading better than stock maf. it helps spool quicker.

 

[xcz504d]

GM MAF

1. Less restrictive than the stock MAF, depending on what size, a 3' MAF is great.
2. You can mount the MAF on the output side of your intercooler.
- Allows you to vent your BOV into the atmosphere instead of recirculating it
- Allows for more accurate air reading because it measures the actual temp going to your intake
3. MAF-T allows for basic tuning of fuel injector sizes

 

[Talesin]

Translation to English, with additional extrapolation:

You can't plug in a GM MAS directly, you need to get something called a MAF-T (Mass Airflow Translator) to utilize it. This will run you about $200 new or used. You must have a hard upper intercooler pipe at least, to mount it in blow-through mode.

Advantages:
Freer flowing. The stock MAS is a Karmann Vortex style, which is quite restrictive. The GM MAS can flow up to 500% better... letting your turbo breathe easier, and thereby making it easier to spool. (less turbo lag)
Since you normally will mount one in 'blow-through' mode (after the CBV/BOV and well after the turbo) you can worry less about boost leaks; it'll only measure air that's actually making it to the throttle body, instead of botching on any intercooler and/or IC piping leaks.
If mounted in blow-through mode, you can switch to a proper blow off valve, instead of the stock compressor bypass valve. You can also vent to atmosphere (after switching to a BOV), which will also give you that ricey 'hiss' on shifts, but will remove any compressor surge faster and more effectively.
The GM MAS will give a more accurate air-count, and will be able to support a much larger airflow (aka: higher total horsepower) before overrunning.

There are a ton of places that sell the MAF-T unit... MachV Perfromance, Slowboy Racing, and Extreme PSI off the top of my head.

 

[project_tsi]

Search guy, come on. This has only been discussed 100 times so far.

http://www.dsmtuners.com/forums/showthread.php?t=174055
http://www.dsmtuners.com/forums/showthread.php?t=202671&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=204797&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=194892&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=192140&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=183243&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=172556&highlight=Maf+benefits

 

[DGajre777]

Search guy, come on. This has only been discussed 100 times so far.

http://www.dsmtuners.com/forums/showthread.php?t=174055
http://www.dsmtuners.com/forums/showthread.php?t=202671&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=204797&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=194892&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=192140&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=183243&highlight=Maf+benefits
http://www.dsmtuners.com/forums/showthread.php?t=172556&highlight=Maf+benefits

The guy probably couldn't find anything because he was searching for "GM MAS" instead of "GM MAF".