14B question

[Yoshi]

i recently bought This turbo kit but instead of the 16G i went with the 14B for a discount. but my question is can i re-use the t-25 waterlines or do i have to go get the waterlines for the 14B from the dealer??? and what do i do with the loose line that connected to the Turine housing? because the ppl that are doing the install are hassling me about it and its getting on my nervs soo someone PLEASE HELP!

Thx

 

[bOOst tsi]

your installing a brand new turbo i assume...buy all the lines new just to be on the safe side...but im pretty sure sure u can use the old water lines..

 

[danny_l_2005]

Yes you can use your t-25 water lines, you only have to bend them to fit

 

[Yoshi]

what about the line that tee's off and connects to the wastegate and compressor housing??? because one line goes to the Wastegate and the other just hangs there i think

 

[MrBoxx]

You can do one of two things:

A: You can connect the line from the compressor housing directly to the nipple on the wastegate actuator. This will give you roughly 11-12psi of boost, since you're just using wastegate spring pressure to regulate boost. However, on a 14b, you won't have a nipple on the compressor housing, so you'll have to use a nipple on the J-pipe. If your J-pipe doesn't have a nipple, you can buy one, then drill and tap the J-pipe, install the nipple and be done with it.

B: You can connect the line to a manual boost controller. Again, the 14b won't have a nipple to get a pressure source from, so you'll have to put a nipple on the J-pipe.

Don't tap the BOV line for your pressure signal to the wastegate, though.

 

[titogs95]

When you reuse the water line, please make sure to buy new "crush washers" So, you won't have any leaks from there. Trust me on that one.
Also make sure to torque it down "to the manufacture torque spec." otherwise it will snap or leak.

 

[Yoshi]

cool. could i re-use the nipple of my T-25 and tap into the J-Pipe and just screw that in?

 

[PieEyedPiper]

cool. could i re-use the nipple of my T-25 and tap into the J-Pipe and just screw that in?

If I'm not mistaken the nipple on the T-25 compressor cover is actually cast into the cover itself.

 

[MrBoxx]

I thought the same, Piper, but actually I just took a look at my old T25 compressor cover and it looks just like an ordinary brass fitting. As long as you can get it out and get it cleaned up, then find the proper size drill and tap, I see no big problem re-using that nipple.

The easiest and most common thing people do is just get a brass barbed fitting from an auto parts store. Most are 1/8" or 1/4" NPT if I remember correctly. There's a preference for one over the other and I'm sure Bruce has mentioned it in the past, if he happens across this thread.

Just drill the IC pipe/J-pipe, tap for the correct thread pitch and size, wrap a little teflon tape around the fitting, and screw in. Bruce also gave me the idea of mounting the nipple fitting close to the end of whatever pipe you use so you can file down the threaded part inside the pipe to decrease airflow obstructions. If you do this, just be sure to not file down too much of it.

 

[romeen]

I thought the same, Piper, but actually I just took a look at my old T25 compressor cover and it looks just like an ordinary brass fitting. As long as you can get it out and get it cleaned up, then find the proper size drill and tap, I see no big problem re-using that nipple.

The easiest and most common thing people do is just get a brass barbed fitting from an auto parts store. Most are 1/8" or 1/4" NPT if I remember correctly. There's a preference for one over the other and I'm sure Bruce has mentioned it in the past, if he happens across this thread.

Just drill the IC pipe/J-pipe, tap for the correct thread pitch and size, wrap a little teflon tape around the fitting, and screw in. Bruce also gave me the idea of mounting the nipple fitting close to the end of whatever pipe you use so you can file down the threaded part inside the pipe to decrease airflow obstructions. If you do this, just be sure to not file down too much of it.

On the last 2 J-pipes that I put a nipple on I used a Dremel to cut off most of the threaded portion which would normally protrude into the inside of the pipe (leaving just enough to get the threads to grab and stabilize it). This allows mounting closer to the boost source/compressor. I then used JB Weld around the base to further stabilize it and and seal it. Have never had a problem doing it this way.

I don't know if it makes a significant difference as far as airflow but it allows my OCD, borderline neurotic car guy mind to rest easier.

 

[MrBoxx]

Those are pretty good tips. Yeah, JBWeld can definitely be used to seal up the tiny cracks in the hole/threads. And I'm sure a Dremel with a sanding drum or small cut-off wheel would probably be faster than filing it by hand.