i was wondering do you have to use a MBC? or can you use the stock BCS?

[lowandsleekDSM]

Ok im looking for a couple of answers here, first off i am following the Taboo Speed vacuum line diagram since i deleted my emssions and i was wondering do you have to use a MBC? or can you use the stock BCS? and how do i hook the BCS up using the Taboo Speed diagram? (i know this is such anewbie question )

And second, im trying to find the thread pitch or the size of the fitting thats on the factory hard oil feed line coming from the turbo on a T25 that hooks up to the line that goes to the oil filter housing. Im trying to adapt a braided line to replace my factory line since the factory line had a crack in it. I would buy one from the dealership but i already had the line so i figured id use it. Now the problem i`m having is...the braided line has a standard fitting but i think the oil feed line on the turbo is a metric fitting i believe? If anyone knows what size fitting or thread pitch or whatever is then that would be great ### thats the ONLY thing thats keeping me from starting my car after my rebuild.

 

[pj91gsx]

the vacuum diagram for the bcs should be on the inside of you hood.

 

[lowandsleekDSM]

Actually its not to tell you the truth....the car was repainted by the previous owner and non of the factory labels are under the hood.

 

[JusMX141]

Also, im trying to find the thread pitch or the size of the fitting thats on the factory hard oil feed line coming from the turbo on a T25 that hooks up to the line that goes to the oil filter housing.

The T25 oil supply line is a 1/4" steel tube fitting from the factory. It's similar to a 7/16" x 20 bolt thread, but it's actually a little bit finer. I'm sure you can find a fitting to go from 1/4" tube thread to Army/Navy thread.

 

[pj91gsx]

I dont know how the 2g bcs goes, so maybe someone will chime in about that.

 

[ilikespeeding]

Haven't just about all of us pulled the BCS? I know mine is in the trash somewhere.

 

[lowandsleekDSM]

Well im about to start my rebuilt motor and i dont want to do pull after pull out on the road to get a MBC dialed in. I rather use the stock BCS for right now and when the motor is broke in and i know it runs 100% then i`ll throw in a new MBC. Just taking precautions for right now i cant afford to do anymore damage after i get the car back together...im currently having all kinds of problems trying to get it together now for crying out loud

 

[JusMX141]

Run a vacuum line directly from your boost source to the wastegate actuator. It's not possible for the boost pressure to exceed whatever the wastegate's spring tension is in that case.

It's much easier than trying to run through the BCS.

 

[lowandsleekDSM]

Ok sounds simple enough...just run it from the nipple on the compressor to the wastegate actuator right? ( i still have my T25 and thats the only way i see how to do it)