MAS setup

[Xero_Tolerance]

Is it possible to take the 1g MAS and cut it up a bit and figure out a way to put it in right before the throttle body like with a MAF and translator? It seems like it would make sense and then it would run a lot more accurately like a MAF. But I have never heard anything about anyone doing it so maybe there's something I'm missing. ANyone know anything about the idea?

 

[CanadianTSi]

Not possible, the MAS is setup to have air sucked through it, not have air blown through it....

 

[Turblown]

Not possible, the MAS is setup to have air sucked through it, not have air blown through it....

True Dat.

 

[Xero_Tolerance]

So what if you flipped it around... Then air is being sucked through isn't it? It doesn't make any sense that the computer could tell if air was being sucked through or pushed through. It just measures how much air is going through doesn't it?

 

[CanadianTSi]

Try it and see if it works.

If it did work don't you think atleast 1 person would have done it by now, it's not like your the first to ever come up with the Idea.

 

[Turblown]

From searching on this site... Search = moving mas

Our Sensor is a "karmen vortex mas" meaning that the Air has to be drawn through the mas, it creates a vortex... (spinning air)... and depending on the vortex... the sensor sends a signal (along with other signals) to the ECU to add fuel.

"the karman/vortex type sensor relies on a pressure differential between the front and back of the sensor to meter air correctly"

With a Blow-Thru setup the pressure on both sides of the sensor would be the same... so... I'm thinking that's the reason. :thumbdown

 

[Xero_Tolerance]

And that's the reason it won't work so it seems, I guess the 2g works on the same principle?

 

[Turblown]

And that's the reason it won't work so it seems, I guess the 2g works on the same principle?

Yeah... same for the 2g...
stinks... cuz the 2g maf would be ideal for this type of setup since it's shape is similar to a GM maf... a 1g maf would be near impossible to setup/fit correctly even if it would function properly.

 

[Xero_Tolerance]

So the only way to do a blow-thru setup is by getting the maf and maf translator?

 

[SlowboyCSE]

1G MAF's, 2G MAF's also were not designed to be air tight, or even see boost for that matter. You would have to seal them even if you could put them in a blow through. I have scene this also with older/used GM Maf's that are causing boost leaks on cars. I've taken the GM Maf's apart, resiliconed where the old sealer was dry rotted or detoirated and resealed them. They then work better because compressed air isn't leaking out of the maf.

 

[Turblown]

So the only way to do a blow-thru setup is by getting the maf and maf translator?

I believe you can do it using a VPC (Vein Pressure Controller), but they cost about 5 times as much as a GM MAF setup. :thumbdown

 

[boostedinaz]

I believe you can do it using a VPC (Vein Pressure Controller), but they cost about 5 times as much as a GM MAF setup. :thumbdown

Actually the VPC setup changes the car from a MAF type system to a speed density system. This gets rid of the MAF all together.

 

[Turblown]

Actually the VPC setup changes the car from a MAF type system to a speed density system. This gets rid of the MAF all together.

But... VPC does allow you to have the BOV blow to atmosphere instead of recirculating... correct?

 

[boostedinaz]

But... VPC does allow you to have the BOV blow to atmosphere instead of recirculating... correct?

Yes, the VPC gets rid of the MAF and chages the car to a speed density vehicle.

 

[SlowboyCSE]

The reason you can vent to the atmosphere is because the air is being metered after the blow off valve has opened, closed etc. I'm an old school VPC junkie, but finding parts for them is tougher and as posted earlier, they are not getting much cheaper unless some one just wants rid of the unit.