Has anyone relocated there MAF near the inlet manifold after the intercooler ?? Will it work and is it goin to be more accurate??

 

no. the MAF reads the air being pulled into the intake tract BEFORE it's pressurized by the turbo. if you were to relocate it after the turbo, I doubt the car would run very well, if at all.

why would you want to do that?

 

I have heard of this being done successfully on other cars. The advantage of this is that you can use a bov if you want because the MAF hasn't kept track of that air flow yet. In other words, it shouldn't matter where the MAF is, as long is the system doesn't lose any air after the MAF. I think it would be a really cool project just to be unique and get a away from what everybody does here.

 

I fail to see how it would run well. the MAF measures air flow, in velocity. the ECU is programmed to recognize a certain set of parameters from the MAF. as velocity increases as measured at the MAF, the ECU adjusts fueling and timing curves. if you were to move the MAF to near the intake manifold after the turbo, it would be measuring higher air flow velocity and the ECU would try to compensate for that with a ton of fuel. remember, the computer thinks the MAF is before the turbo, where the air flow is comparitively slow as it's sucked in through the airbox. if it's between the turbo and the throttle body, the air is moving a lot more quickly, because the turbo is pushing it through.

I still doubt it'd work.

 

Regardless of where the MAF is, the MAF itself is always the same diameter. The velocity of the air is dependant upon the diameter of the pipe it flows through. Since the MAF doesn't change, the velocity also stays the same in that exact spot. Even if the velocity is different before the MAF, it will speed up or slow down accordingly to get the right reading (in theory).

 

yes, that's true. the velocity won't stay the same though, because the pressure and volume aren't the same. the computer may be able to adapt to this, I don't know.

 

Yeap it has been done in other cars. I was just curious to know if anyone has done this in an Audi. Im not sure but i think there is a different MAF you have to use , The standard MAF reads suction, I could be wrong ....

 

YOOOOOOOOOOO


Im very educated in this subject... im sure my buddies BEERMOD and JEFF are well, cuz they definately run with the DSM crowd too.

This is a very popular thing to do on a DSM (eclipse/talon) because it safely allows you to completely vent your BOV without any damage or weird running of the car.

It doesnt matter where the MAF is as long as its before the throttle body

I have wondered if anyone has done this to an audi but I have not heard of such a thing yet.

What this does is it reads the air after the BOV so when the air gets vented the computer didnt know it was there in the first place causing no effect....

audi computers are a little more complicated so idk if it would be as easy..

 

I've heard that the audi maf's can't stand up to the pressure on the aft side of the turbo and wil fail

 

what about me?

Not a DSM'er but i did this on my '02 turbo lancer. worked great with my setup. But then again my mitsu maf withstood sucking in water and taking 7psi from a 28r. Now if you did it with a vw/audi maf.....KABOOOOOM. The maf would maybe last you a day or so before going. These mafs seem to be much more troublesome.