Air intake question

[VicBoost]

Hi, guys i'm planning on getting a air intake. I found some nice ones at dejnhouse. But they have option for 2 3/4 inch and 3 " diameter. I'm guessing thats the diameter of the pipe. I don't know the size of my stock t28 like the inlet, but i won't have this for long. I'm probably going to switch to 16g or the 20g turbo. Anyways my question is what size is the inlet on most turbos......and which one should i get?

 

[olmytsi]

T25, t28, 14b, 16g, 18g etc all have the same size inlets

 

[VicBoost]

Thanks man Quick question do i need to keep the MAF box... or can I get rid of it? I'm looking to get one of these http://dsm.dejonpowerhouse.com/edit/2-01.htm . Also quick question which tubes should i get because they have options that say all tubes, BOV tubes and no tubes.

My BOV is after market tube and it has a pretty big end, just wondering if there BOV tube will fit around my inlet on my BOV.

Thanks
Vic

 

[MyBeatGSX]

Dejon lists right on their site which intake size goes to which turbos. I really don't think a T25 and a 16G have the same inlet size, you might want to confirm that. But as said, everything is listed right on their site.

 

[olmytsi]

Not sure by what you mean by maf box but you have to keep the maf (measures the air and tells the ecu how much fuel to inject) but you can replace the airbox with an air filter.

They might not be the SAME EXACT diameter inlet but the same intake/coupler works for all of them.

 

[VicBoost]

Not sure by what you mean by maf box but you have to keep the maf (measures the air and tells the ecu how much fuel to inject) but you can replace the airbox with an air filter.

They might not be the SAME EXACT diameter inlet but the same intake/coupler works for all of them.

Nevermind you do need the maf box and i already have the Air Filter not the box, so i guess all i need is the pipe. Thanks

Vic

 

[donmagicjuan]

They might not be the SAME EXACT diameter inlet but the same intake/coupler works for all of them.

Actually, on my T25 (same compressor housing as a T28) I couldn't get the standard 2 1/4" coupler to fit without leaking, so I ended up buying a 2 1/4 --> 2" reducer. On my 16G, however, the standard coupler fits fine.

 

[MrBoxx]

My BOV is after market tube and it has a pretty big end, just wondering if there BOV tube will fit around my inlet on my BOV.

You're recirculating your BOV, right? If not, your car's performance may be suffering. You'll want to buy the intake tube with all of the tubes. If you want to vent, you'll need to convert to a GM MAF (located after the BOV, before the throttle body) and MAF Translator system. If you do that, Dejon has some excellent intercooler pipe options for it.

 

[GreddyGst]

T25, t28, 14b, 16g, 18g etc all have the same size inlets

Wrong. unless he buys a reducer coupler then the intake will fit. I know my T25 inlet is very small compare to my old 18g turbo which was 3" inlet. Now I have a 30R and the inlet is 4". I bought a reducer to keep my 3" intake pipe.

General Notes for the following Intake Pipes
1. All Intake pipes are made from 16ga mandrel bent steel and powder coated inside and out except CIP-1gQ-3"
2. All couplers and clamps are included
3. To completely replace your stock pipe with all tubes order the model with the "y" at the end. If you want just one optional tube to connect your hose from the charcoal canister or valve cover vent, order the "BOV only" model, and tube separately at top of page.
4. 2 3/4" size barely clears the 14b-16g waste gate actuator but will also work with the 20g
3" size fits 20g and Garrett T3/T4's.
3 1/2" size fits largest Garrett T3/T4'st and GMAF35 or GMAF36.
4" size fits 4" inlet turbos.

Make sure you recirculate your BOV back to the intake

 

[VicBoost]

Can i just get BOV tube because thats all i need and what are the other tubes, when they say all tubes. All i really want to do is vent my BOV. But will there tube be wide enough for my BOV because my inlet on BOV is pretty wide.

 

[VicBoost]

You're recirculating your BOV, right? If not, your car's performance may be suffering. You'll want to buy the intake tube with all of the tubes. If you want to vent, you'll need to convert to a GM MAF (located after the BOV, before the throttle body) and MAF Translator system. If you do that, Dejon has some excellent intercooler pipe options for it.

I already have the gm maf and the filter. Sorry for newb question but what the GM MAF and what MAF translator system. I have a electronic box before my air filter. I will take a picture and show you guys today or towmorrow.

 

[GreddyGst]

Can i just get BOV tube because thats all i need and what are the other tubes, when they say all tubes. All i really want to do is vent my BOV. But will there tube be wide enough for my BOV because my inlet on BOV is pretty wide.

The BOV tube is to recirculate your BOV back to the intake. The other tubes which are 2 small nipples is to connect the charcoal canister and valve cover hose back to the intake. Go look at your stock intake and you should see 2 connections with hoses.

I suggest you buy the intake with all tubes (BOV tube + other tubes) The option for no tubes is for people that are more highly modded and don't have to recirculate or need extra tubing for any other connections.

 

[VicBoost]

Okay thanks for the info, i guess i should get all the tubes

 

[thilaksharma]

T25, t28, 14b, 16g, 18g
all have diffrent inlet sizes right ?
as i know the 16g and 18g are confirmed diffrent
im not familiar with t series since im not a dsm'er

and you cant remove ## MAF , you need it unless you are switching to MAS with MAFT

 

[Wicked96GS-T]

T25, t28, 14b, 16g, 18g
all have diffrent inlet sizes right ?
as i know the 16g and 18g are confirmed diffrent
im not familiar with t series since im not a dsm'er

and u cant remove ## MAF , u need it unless u r switching to MAS with MAFT

T25's and T28's have the same outside dimensions of the compressor housing.

 

[oldman]

But will there tube be wide enough for my BOV because my inlet on BOV is pretty wide.

You're so confused, the words "tube" doesn't mean "pipe" or hose, they're simply fittings on the intake for you to connect hoses to. Your BOV and the BOV return tube are both 1" ID (inner diameter), you'll need to find a hose to connect the BOV OUTLET (not inlet) to the return tube.

All i really want to do is vent my BOV.

Did you even read what Wiseman Eric posted? You can vent if you want but if I see you posting problem threads with issues relating to venting I will lock it, I'm serious.

I already have the gm maf and the filter. Sorry for newb question but what the GM MAF and what MAF translator system. I have a electronic box before my air filter. I will take a picture and show you guys today or towmorrow.

Now I'm confused, I'm hopping you have not install the GM MAF yet.

2. All couplers and clamps are included

Be prepared to buy your own couplers, including mas to pipe. The couplers included with Dejon pipes are not only just cut outs of fuel hoses for trucks, they're way too short to keep the pipe from popping off the turbo.

 

[VicBoost]

http://dsm.dejonpowerhouse.com/edit/2-01.htm why do some of these air intakes don't have that box before the air filter.... i thought you need that box.WTF

 

[olmytsi]

It's for people running a VPC, GM MAFT in blowthru or a standalone.

Here's mine: http://members.aol.com/olmytdadon/after.jpeg

 

[VicBoost]

It's for people running a VPC, GM MAFT in blowthru or a standalone.

Here's mine: http://members.aol.com/olmytdadon/after.jpeg

How would i be able to do that?

 

[RiceKiller_TSi]

With the MAFT.
Or some other type standalone.
You wont need the metering device placed in the stock location anymore.

 

[olmytsi]

How would i be able to do that?

GM MAF in blow through with Translator
MAFT PRO
VPC
Standalone like an AEM EMS

The Gm maf is the easiest route.

 

[VicBoost]

Sorry but are there any install pics and where exactly can i get these. Sorry for the newb questions but i don't know what they are i have a clue but i don't want to do anything wrong.

 

[MrBoxx]

The GM MAF that everyone is talking about is a Mass Air Sensor from a General Motors car, such as a Corvette, Impala, Grand Am, etc. Here is a link to a thread where DGajre777 compiles a list of all the cars with a 3" MAF and a 3.5" MAF, in case you're ever at a salvage yard and looking for buried treasure. Where to find MAF's.

Okay, so you went to the junkyard, got yourself a nice MAF off an Olds Alero or something. Now, the GM MAF can't just use the same plug as your DSM MAS uses, and the GM can't really talk to the DSM ECU in the same way. What you need is a Translator (the "T" part of MAF-T setups) which is available at a few vendors. Here is an example at SBR. They also sell MAF's. That plugs into the GM MAF and connects to the stock MAS plug. Now you can put the GM MAF anywhere in the intake tract you want: stock location behind the air filter and a few inches before the throttle body are the most popular and common places. The majority of people will probably put the MAF before the throttle body, since it's after the BOV. This means that the air counted by the MAF won't be affected if you decide to vent your BOV to the atmosphere. If you leave the MAF in the stock location, you'll still need to vent, because the air is counted before the BOV and needs to be kept in the system.

The MAF Translator also includes software that allows you to tweak the airflow characteristics of the car. Some people use it as a tuning tool, others choose to use it coupled with something like an AEM or DSMLink with the Translator values zero'd out so they don't interfere with the other tuning tool's settings.

To install the GM MAF in the Upper Intercooler Pipe, you either need to modify your stock or aftermarket UICP, or buy one specially made for GM MAFs. Usually these include large transition couplers.

That's the basics of the GM MAF Translator system. Until you start out-flowing the stock MAS (most say this happens at around 400 horsepower), you really don't need it. Some people just want to go the correct way when they want to vent their BOV and spend the couple hundred dollars to do so.

For now, you want to buy an intake with all the hoses available with a turbo inlet size that's going to work for you both now and if you decide to upgrade. In this case, you can use transition couplers to adapt to what you need. The stock T25 has an inlet of 2" Outside Diameter without the rubber sleeve in the stock intake tube. I use the sleeve on my 14b and it fits fine. The 16g should have about the same size inlet as well, though some people say they don't use the sleeve on theirs and couplers fit fine, so you may have to do some experimenting. In other words, buy your intake now with the size that will fit the turbo you have now, then when you upgrade turbos, either take out the sleeve in the stock intake, or buy a transition coupler to adapt your intake to the new turbo.