what should I get with my dsmlink?

[pj91gsx]

I have the dsmlink, but I am confused on what else I need. A maf or map or whatever is what I would like to have. I'm not planning to go any farther than a ported 16g and exhaust manifold and o2 housing. So what kind of map should I use, and do I need a maf translator. Is there a difference between maf, map, and maft? I also plan to get a wideband later, I just want to know what I need for choosing a maf.

 

[forcefed4]

Wideband and map sensor. One of the sensors that most are using is a GM 3.3 bar unit.

You don't need a MAF translator.

 

[awdtalontsi1992]

DSMLink is designed to work with several different setups. You can keep your stock MAF for now if you want. You will find that it can be over run though. You can switch to a GM MAF with a MAF/T. This is what I would recommend as far as the MAF goes. Also while you are upgrading to DSMLink you should think about upgrading your injectors at the same time.

 

[snowborder714]

You don't need to get any of those.

MAP sensor - Manifold Absolute Pressure sensor
MAF - commonly used to talk about a GM MAF
MAF-T - mass airflow sensor translator (only needed when using a GM MAF)

The MAP sensor would replace the current MDP sensor that our cars come with. This sensor, when integrated with DSMlink, would allow you to log real boost/vacuum that you're seeing. The only reason you'd need a MAF and MAF-T is if you went with a blow-thru or draw-thru setup. Your current MAS should be fine, so you wouldn't need to get a new MAS/MAF. The only thing I'd say you should get is a wideband, which you said you have on your list.

 

[forcefed4]

I don't think he'll overrun the mas with a 16g.

 

[pj91gsx]

ok cool. I don't have a wideband yet. I just plan to get one because I know how necessary they are to tune. Snowboarder714, are you saying that I can take my stock MAS and put it in the intercooler piping?

 

[snowborder714]

Snowboarder714, are you saying that I can take my stock MAS and put it in the intercooler piping?

Nope, it doesn't work like that. The stock MAS has to stay where it's at. But if you want to upgrade, you can get a GM MAF and install it in your uicp for a blow-thru setup. But that's a good bit of money and unnecessary if you're running a 16g.

 

[Steve93Talon]

I don't think he'll overrun the mas with a 16g.

He's on a 1G, he can overrun the stock MAF with a 14b. You can easily add a 2G MAF and never have to worry about upgrading again though. A wideband would be a good idea. MAP sensor isn't really necessary, just make sure your boost gauge is accurate and in a spot you can easily see it. And start reading the DSMlink user manual and tuning guide and posting/searching the DSMlink forums, that's what they're there for!

 

[pj91gsx]

cool. I heard about using a 2g MAF. I see whats on classifieds. Or just send some pms, if anyone wants to sell one. If I get a 2g MAF, I need a wiring harness for it right?

 

[1992awdlaser]

Just to add to what snowboarder said a map sensor will make it easier to tune the car since you don't have to watch the boost gauge while doing a wot pull. This is since you can log the map sensor and it will tell you what boost you have at any given rpm.

snowborder714- I agree with everything you said except "This sensor, when integrated with DSMlink, would allow you to log real boost/vacuum that you're seeing.". The map sensors are not accurate when it comes to reading vacuum.

 

[tbonitz301]

A wiring harness would help ease the install a bit. I sent you a pmAlso of course you will need the couplers too

 

[snowborder714]

snowborder714- I agree with everything you said except "This sensor, when integrated with DSMlink, would allow you to log real boost/vacuum that you're seeing.". The map sensors are not accurate when it comes to reading vacuum.

Hmm...I'll have to check mine out next time I'm home. I'm pretty sure my map sensor is within 1 or 2 psi of my boost gauge all the way up and down.

 

[1992awdlaser]

Hmm...I'll have to check mine out next time I'm home. I'm pretty sure my map sensor is within 1 or 2 psi of my boost gauge all the way up and down.

It might be certain ones then. I know there are at least some type that isn't accurate.

 

[forcefed4]

He's on a 1G, he can overrun the stock MAF with a 14b.

Didn't snap to the 1g part For some reason I was thinking 2g maf.

 

[JeffGST]

1G's are unfortunate with DSMlink since we only have ONE open input for other sensors. (EGR is open)

You cannot log more than one sensor at a time, UNLESS you install a GMAF Translator in the motor. This way it frees up the Intake Temp and Barometric Pressure inputs for logging both the Wideband and a Map sensor at the same time.

1G's are almost forced to use a GMAF setup. 2G's are lucky since they have the MDP input and the Rear O2 input open to use. 2G also have a better MAF that will not overrun so quickly.

 

[pj91gsx]

ok, now that you answered my queston about which maf is good for my 16g set up. I might make a deal with my brother on his block with forged internals, wissco pistons 9.5:1 i think and eagle rods. What maf set up should I get for a 2003 holset turbo from a dodge ram cummins turbo diesel on that bottom end? I may throw it on my motor awhile from now, but Im just curious. It is good for 35 lbs of boost, so what set up would I need for that If I push 35 psi? What size injectors? What kind of maf? Would I need a maf translator, I didnt really understand why i didnt need one when I asked before? Do I just need to get a wiring harness from the maf to the ecu?

 

[JeffGST]

What kind of maf? Would I need a maf translator, I didnt really understand why i didnt need one when I asked before? Do I just need to get a wiring harness from the maf to the ecu?

Did you even read the post above you??

The GMAF frees up inputs so that you are able to log both a wideband and a map sensor. Also you are able to run the GMAF in blow-thru mode and you can use a quality venting BOV like the Tial unit.

You need the wiring harness from the GM MAF to the stock harness + the Translator.

Any turbo that pushes 35 PSI at redline should require injectors at least as large as 950cc. I said AT LEAST.

 

[My1GLaser]

It seems that you might be a bit confused on the MAS thing. Your car currently has a 1g MAS, which is really only good for up to about 300 HP. After that it cannot read the airflow accurately because it gets "overrun." To max out a 16g you WILL overrun the 1g MAS. I am already seeing airflow on my 14b that would max out the 1g MAS. Oh, and the 2 terms are used interchangeably alot. MAF & MAS. It is a Mass Airflow Sensor, but that isn't important. Just so you know we are all talking about the same things.

You do not need a GM MAS (MAF) at all, and you only need a MAFT if you get a GM MAS. It is a $200 contraption that converts the GM airflow signal from the GM MAS to something that a DSM ECU can understand. Upgrading to GM MAS & MAFT might be beneficial or necessary later down the road, but not normally in the beginning especially with DSMLink for tuning. You actually probably won't need one at all if you don't go past the 16g stage with your car.

The 2G MAS is a very suitable upgrade for a 1g. It can easily flow enough air for over 450 whp. I am sure there are people on here running 10s with it. I personally upgraded to a 2G MAS. Tuning with a 2G MAS is much easier in the learning stages because a GM MAS needs calibrated to run correctly and EVERY GM MAS is slightly different. Check here http://jeffgst.com/ for info. Jeff ^^^^ knows these things like no other.

If I were you I would buy a Wideband now with DSMLink and wouldn't piss with the other stuff yet. IMO, you can make more power on the tune you can get with those 2 devices then the benefit you might get in quicker spool, more flow or less restriction from a GM MAS. Plus tuning without a Wideband is f_cking PITA.

 

[pj91gsx]

I understand much better. what size maf do I need if I push 35 psi, 3.5 bar?

 

[Black_Bullet]

I understand much better. what size maf do I need if I push 35 psi, 3.5 bar?

You have a long way to go before worrying about anything near 35 psi.

Just get DSMLINK; some bigger injectors and a 2g, evo8, or GM MAFT first and then get the hang of tuning and max out your current set up first.
Just slapping a big turbo on doesnt mean anything but possible self destruction or
a laggy setup without the supporting mods, tuning, and hard parts...

 

[My1GLaser]

I understand much better. what size maf do I need if I push 35 psi, 3.5 bar?

Glad I could help. If you are asking about a certain MAF being a restriction at 35 psi, I would imagine that when you get to that stage of HP you could look into a 3.5" GM MAS. However the 2G MAS would probably work too, but I do not know exactly when it becomes a restriction.

But if you are asking about logging boost source thru DSMLink then you are referring to a MAP sensor, which stands for Manifold Absolute Pressure. 35 psi = 2.4 bar at sea level. So I would imagine that a GM 3bar would suffice.

 

[snowborder714]

But if you are asking about logging boost source thru DSMLink then you are referring to a MAP sensor, which stands for Manifold Absolute Pressure. 35 psi = 2.4 bar at sea level. So I would imagine that a GM 3bar would suffice.

Actually, on a MAP sensor 1 bar is used for reading vacuum so a 3 bar sensor will only read up to 29 psi.

 

[My1GLaser]

Actually, on a MAP sensor 1 bar is used for reading vacuum so a 3 bar sensor will only read up to 29 psi.

Now it makes sense why people use GM 3.5 bar & AEM 5 bar. I calculated it out and always wondered what the need would be. I mean 5bar is 72.5 psi....

 

[snowborder714]

Ya, I have a 5 Bar MAP sensor, which is totally unnecessary, but if I ever want to run more than 37psi, I'd need it. Plus, it was the same price as the 3.3 so I figured why not.

 

[pj91gsx]

ok. when will I know when the stock MAS gets overrun? Also, if I use a blow through gm maf set up, would the stock MAS get over run eventually with a high horsepower setup?