installing a mbc when dealing with a j pipe???

[3134]

Alright so i have a 2g eclipse and i have a s16g turbo that has tubing running from the wastegate to the intercooler piping from the j pipe to the intercooler. This is connected to the wastegate by a t-connector. Should I leave this line connected when putting in my mbc or not?

 

[travislaw]

Alright so i have a 2g eclipse and i have a s16g turbo that has tubing running from the wastegate to the intercooler piping from the j pipe to the intercooler. This is connected to the wastegate by a t-connector. Should I leave this line connected when putting in my mbc or not?

Where is the other part of the T going? With a MBC, I would get rid of the T. If the other line is going into your intake, take it off and plug the hole on the intake. Your MBC should sit as follows: J-Pipe hose to MBC then MBC to wastegate.

 

[3134]

what about the line that usually comes from the blow off valve??? the setups i usually see have one line going from the blow off valve and the other going to wastegate. Should i instead not have it going from the blow off valve and instead have one line going to the wastegate and the other going to the piping that is running into the intercooler?

 

[travislaw]

what about the line that usually comes from the blow off valve??? the setups i usually see have one line going from the blow off valve and the other going to wastegate.

People do this but it isn't necessary. In fact there are some recomendations not to have this done. The line going from the BOV should be going directly into the intake manifold.

Should i instead not have it going from the blow off valve and instead have one line going to the wastegate and the other going to the piping that is running into the intercooler?

Yes, this is fine and what more people are doing. Think of it this way. On the stock set-up, does your Wastegate have a line getting T-ed into the BOV, answer is no, so why would your MBC need to have it that way. The stock set up on the T-25 at least goes from the compressor housing and gets T-ed into the intake and then goes into the Boost Control Solenoid and then the other end goes into the Wastegate actuator. (I could have the T location backwards, it has been awhile. As in the intake T is on the wastegate side instead of the compressor side.)

 

[3134]

ok thank u, so to install this mbc all i need is one side going to the wastegate and the other going to the nipple of the piping that goes into the intercooler?? So I will not need any t-fitting anywhere from my bov to my intake manifold and will just leave that the way it is and instead will be able to control boost from simply having a set up from this pipe leading to my intercooler which will be connected to the bottom of the mbc and the side of the mbc will be connected to the wastegate??? Sorry i am beating a dead horse, just want to make sure that my set up will work.

 

[travislaw]

ok thank u, so to install this mbc all i need is one side going to the wastegate and the other going to the nipple of the piping that goes into the intercooler?? So I will not need any t-fitting anywhere from my bov to my intake manifold and will just leave that the way it is and instead will be able to control boost from simply having a set up from this pipe leading to my intercooler which will be connected to the bottom of the mbc and the side of the mbc will be connected to the wastegate??? Sorry i am beating a dead horse, just want to make sure that my set up will work.

That is correct. No T is needed in the set-up. Here is a rough sketch of what it should look like, sorry it suck, I am at work.

 

[3134]

Wow, thanks a lot. Yea that is exactly what it will end up looking like, i just took a walk to my car and took a second look and was sorta surprised that i wont be needing a t fitting or anything... thanks for the sketch and the help

 

[travislaw]

Wow, thanks a lot. Yea that is exactly what it will end up looking like, i just took a walk to my car and took a second look and was sorta surprised that i wont be needing a t fitting or anything... thanks for the sketch and the help

No problem. I have been in your spot before so I am glad to help.

 

[3134]

i am also curious about the amount of boost i should be running. I have a small 16g turbo and a 190 fuel pump and safc and am running 9 lbs of boost now. I was thinking of going to 11, is that safe?

 

[travislaw]

i am also curious about the amount of boost i should be running. I have a small 16g turbo and a 190 fuel pump and safc and am running 9 lbs of boost now. I was thinking of going to 11, is that safe?

Now I will be honest I don't know what the max is for sure. But on most turbos and I have the Evo III 16G the max boost you should run is 15 pounds on a stock set-up with a fuel pump upgrade. I am almost totally sure you will be safe running 11 pounds. The stock T-25 can go up to 11 to 12 pounds safely with a stock set-up. If you have bigger injectors with your SAFC, then you could turn the boost up more. But I don't know what the max boost level is for your turbo.

 

[3134]

doesnt the t-25 run 14.1 lbs of boost stock?

 

[travislaw]

doesnt the t-25 run 14.1 lbs of boost stock?

From what I have heard, because I don't know for sure, the stock T-25 only runs either 4, 6, or 8 pound of boost stock. No more. But I have had many people tell me that they are one of the three.

 

[SkyLineGtR-R34]

i am also curious about the amount of boost i should be running. I have a small 16g turbo and a 190 fuel pump and safc and am running 9 lbs of boost now. I was thinking of going to 11, is that safe?

You got a nice setup there. Just get some 550cc's and a datalogger. You should be able to push that 16g up to 15 psi.