2g MAFT Blow-thru setup

[D_Eclipse9916]

Alright so I bought a whole 2g maft setup and im putting it on but I also have dsmlink, but not on yet. Lets say I was putting the maft setup on a completely stock car. What settings would I have on a completely stock car. And once I put in my dsmlink, what settings should be the MAFT setup then?

 

[kottyking]

If it's going on a stock car, zero out the settings on the maft. Also if you have a logger, check it out just to be safe.

 

[t3/t4eclipse]

I have the same setup aswell. I have my maft at all the stock setting and dont tune with it at all. Im sure I may mess with it later on but currently its doing nothing but letting me vent.

 

[95blackGsTurbo]

I hope you got at least a 3 1/2" MAF. Volume for volume the 2g MAF and a 3" GM MAF are almost the same. Great upgrade for the 1g guys though. Not so much for a 2g cars. Especially on a stock one. Big debate on this and AMS and AGP both came out and said that the stock 2g MAS will flow just as good as the GM MAF. But back to the settings it depends on what boost you are running. Stock boost then leave it at 0.

 

[D_Eclipse9916]

I hope you got at least a 3 1/2" MAF. Volume for volume the 2g MAF and a 3" GM MAF are almost the same. Great upgrade for the 1g guys though. Not so much for a 2g cars. Especially on a stock one. Big debate on this and AMS and AGP both came out and said that the stock 2g MAS will flow just as good as the GM MAF. But back to the settings it depends on what boost you are running. Stock boost then leave it at 0.

I thought if I just zeroed out everything it would behave exactly like the stock maf? The reason I got it was mostly because it is much more accurate right next to the throttle body.

Anyway, I am throwing on dsmlink, but I have a big16g right now and I thought I could just throw on the gm maft setup until I get that on, and then I thought I could leave it the same as the gm maft zeroed out wouldnt do anything, because id be using dsmlink for the tuning.

 

[blackGSX2g]

Remember that the BASE settings are what is listed for 450cc injectors in the manual. To figure out which settings work best with your car, you need to drive around with a logger. Everyone can post the settings that work with their own particular car, but you need to figure out with the aid of a logger what works best with yours.

By switching to the MAFT over the stock 2g MAS, I got much better spool-up, a 5-8mpg increase, and the added capabilities to tune which gave me more power. I also liked that I could still drive after popping off an IC coupler and be able to vent the BOV.

 

[kottyking]

I hope you got at least a 3 1/2" MAF. Volume for volume the 2g MAF and a 3" GM MAF are almost the same. Great upgrade for the 1g guys though. Not so much for a 2g cars. Especially on a stock one. Big debate on this and AMS and AGP both came out and said that the stock 2g MAS will flow just as good as the GM MAF. But back to the settings it depends on what boost you are running. Stock boost then leave it at 0.

I'm sorry but an open pipe w/ a filter can spool a turbo faster then a mass air meter before the turbo. Its all about the spool up.

 

[gSx_r1der]

I hope you got at least a 3 1/2" MAF. Volume for volume the 2g MAF and a 3" GM MAF are almost the same. Great upgrade for the 1g guys though. Not so much for a 2g cars. Especially on a stock one. Big debate on this and AMS and AGP both came out and said that the stock 2g MAS will flow just as good as the GM MAF. But back to the settings it depends on what boost you are running. Stock boost then leave it at 0.

Are you kidding me???? A 2g maf that flows almost as much as a gm maf that is located pre turbo will not by any means flow as much as a gm maf located within how ever many inches of the tb. I dont care if god came down and said you can run 40lbs on a t-25 you still dont do it. You're an idiot.

 

[tstkl]

yea i dunno what your talking about at all, who cares if someone said they flow the same. just looking at them will tell you the DUR HUR HUR answer that a 3 inch tube with a wire going down the center will flow more than a bunch of honeycombs. also, that little thing attached to all those purdyful wires, i think its called the maft, thats somewhat helpful as well. but i could be wrong on that one.

 

[1SloColt]

When I got the 3" GM MAF setup I noticed an instant change in response from the turbo. It spooled a solid 150rpm sooner, this was after I retuned the car, and it also allowed me to run a much better BOV that only vents to the atmosphere, a Tial. When you start running boost in excess of 28psi you need a good BOV to go with the rest of the charge system, the GM MAF allowed this. The better response also carried over to transient response between shifts, which was needed for my decently sized turbo. It has definitely been one of the better investments that I have made.

 

[DragSourceTsi]

It would be best to leave the maft settings on base and do every thing from the DSMlink.

Most people have to make airflow slider adjustments to get g/rev back in line at idle. It's best to get a MAP sensor or a WB to calibrate the maft with DSMlink. There are quite a few threads on dsmlink about it.

 

[pinder91]

I hope you got at least a 3 1/2" MAF. Volume for volume the 2g MAF and a 3" GM MAF are almost the same. Great upgrade for the 1g guys though. Not so much for a 2g cars. Especially on a stock one. Big debate on this and AMS and AGP both came out and said that the stock 2g MAS will flow just as good as the GM MAF. But back to the settings it depends on what boost you are running. Stock boost then leave it at 0.

Why would you need the 3.5" MAF? I thought that was more for 3000GT/Stealth applications.

 

[DSM90AWD]

I hope you got at least a 3 1/2" MAF. Volume for volume the 2g MAF and a 3" GM MAF are almost the same. Great upgrade for the 1g guys though. Not so much for a 2g cars

The GM MAF can measure more airflow, and flow more air than a 2G MAS period. Jeff Oberholtzer (DSMChips) even posted up the factory flow capacity of the 2G MAS which equated to ~400HP. I've seen upwards of 600whp on a 3" MAF. A 3.5" MAF with 36% more flow area than a 3" MAF should flow nearly 800whp (lots of F-bodies/GNs doing just this).

The MAF also flows with less restriction. By it's design it is a tube with a heated filiment the size of a human hair (virtually no restriction). The 2G MAS on the other hand, has several sections with air straightening honeycombs and a vortice generator which restricts airflow by design.

Restriction on the turbo makes the turbo work harder to produce the same boost. Much like a FMIC is less restriuctive than a stock SMIC, the MAF's reduced restriction will hasten spoolup and allow the turbo to work more efficiently and produce cooler air discharge.

Big debate on this and AMS and AGP both came out and said that the stock 2g MAS will flow just as good as the GM MAF

Please share this link.

 

[GreenGSX]

Are you kidding me???? A 2g maf that flows almost as much as a gm maf that is located pre turbo will not by any means flow as much as a gm maf located within how ever many inches of the tb. I dont care if god came down and said you can run 40lbs on a t-25 you still dont do it. You're an idiot.

If you don't like the information presented in a thread your only options are to either report it to the mod/wisemen team or present better information. Calling somebody an "idiot" is not productive and contributes nothing to the thread. In fact, all it does is point out your own flaws. Why don't you go out and measure the flow of each and report that back? Or even easier just go measure the total area and see how they compare?

and lets all keep in mind 11 second quarter mile times have been run on a hacked 1G MAF

 

[hereitcomes]

Regardless of what application and what car its going on- the GM 3" MAF allows way more air flow than the stock MAF. Its a great upgrade.

 

[95blackGsTurbo]

I know it is a great upgrade. I used it on both my 2g cars. Clearly no one read my post though. I said for STOCK car it isn't exactly worth the money. You could put on a lot of other mods to help your car before you need the GM MAF setup. And as far as providing a link it wasn't on here. Eric said it when I was at AMS getting my first car dyno'd. And Ben said it at AGP when I was in there looking to get one for my 2g at the time. And people down here wonder why I am getting a 240sx instead of another DSM.

 

[andymoraitis]

If you don't like the information presented in a thread your only options are to either report it to the mod/wisemen team or present better information. Calling somebody an "idiot" is not productive and contributes nothing to the thread. In fact, all it does is point out your own flaws. Why don't you go out and measure the flow of each and report that back? Or even easier just go measure the total area and see how they compare?

and lets all keep in mind 11 second quarter mile times have been run on a hacked 1G MAF

I already addressed this in a PM, but thanks for jumping in and reinforcing our policy.

 

[kottyking]

I know it is a great upgrade. I used it on both my 2g cars. Clearly no one read my post though. I said for STOCK car it isn't exactly worth the money. You could put on a lot of other mods to help your car before you need the GM MAF setup. And as far as providing a link it wasn't on here. Eric said it when I was at AMS getting my first car dyno'd. And Ben said it at AGP when I was in there looking to get one for my 2g at the time. And people down here wonder why I am getting a 240sx instead of another DSM.

Read post number 13 in this thread.

 

[D_Eclipse9916]

BACK ON TOPIC!!!

Am I supposed to hook up the white and purple lines if I am running dsmlink or is it just plug and play, hook dsmlink up to OBD-2 and everything configures itself?

 

[danielbui]

yes! anytime you are using a MAFT setup it always needs to connected at all connections. only wire that does not need to be connected is the purple wire. that is for nitrous or water/alcohol injection purposes.
when DSMlink is installed set your MAFT injector setting to 450cc, your MID and WOT to zero value. this will allow your DSMlink to adjust and set perimeters and values correctly during tuning.

 

[kahl23]

You also don't need to attach the rpm wire. That is only needed if you're using the MAFT as a tuning device. Since you are using DSMLink, this is superfluous.

 

[danielbui]

BACK ON TOPIC!!!

hook dsmlink up to OBD-2 and everything configures itself?

the DSMlink is your ECU. you reconnect the the ECU that you sent off back in its factory location.

You will unplug the ECU in your car and replace it with the ECU you sent off. then you will need a LAPTOP Computer to additionaly tune your car. you will need a wideband o2 and preferbly a dyno. the DSMlink reads off your narrowband o2 for voltage and a wideband o2 is more accurate for voltage.

AND no! DSMlink does not configure itself. you will have a base MAP installed for startup and driving but peak performance is not installed. it is not self learning.

hope that helps,

 

[larsrya8]

you will need a wideband o2 and preferbly a dyno.

While it is nice to have a wideband, you can just tune using knock as well. Many have had success with this method. It's cheaper than buying a wideband too.

AND no! DSMlink does not configure itself. you will have a base MAP installed for startup and driving but peak performance is not installed. it is not self learning.

DSMLink still retains the stock ECU's ability to automatically adjust fuel trims based off the front O2 sensor, as well as the automatic timing control (retard timing due to knock, advance until point of knock at WOT, etc). So in that regard, it is still self-learning. All of this information is available at www.dsmlink.com.

It won't automatically configure itself to get the most power out of your car. Fine tuning of the settings will be required for that. A good example would be "tuning larger injectors" with DSMLink. The manual gives you good settings to start with for various larger injectors, and then you have to use the short-term and long-term fuel trim values to determine if those settings need tweaking or not.

This recent thread discusses installing a MAF-T with DSMLink. It doesn't sound like it's quite plug-n-play, but the DSMLink forums will help you get it all set up.