That is the boost reference hose for the wastegate actuator. You have to have that hooked up or your turbo will just keep building infinite boost.k_oss_22 said:Hi. I just recently installed my new FMIC on my 92 Eagle Talon TSI.
And i noticed that the stock "J pipe" had a line going to it. And then noticed my new "J pipe" did not support this line.
Could you tell me what you did with that line?
This is not true.green_bread said:That is the boost reference hose for the wastegate actuator. You have to have that hooked up or your turbo will just keep building infinite boost.
I just drilled/tapped my J pipe and threaded a brass fitting in there. Then, you apply a healthy amount of JBWeld and give it a good amount of time to set up. Do a boost leak test and spray it down with soapy water to make sure it isnt leaking... then test it again after you go for a drive and it has had a chance to heat up.
actually smartass the engineers also thought an intercooler the size of a dvd case was great to didnt they. My wastegate line goes to my EBC silinoid, and it pulls its source from the intake manifold.1gawd4g63 said:Funny being that the engineer's that designed the car thought differently, and from the factory the wastegate control comes from the j-pipe where it SHOULD come from, you noobs should REALLY stop posting incorrect information, it only misleads others, let me guess you think that the bov line is the correct place to run the source from right?
perhaps you shouldnt go around calling people noobs when you really have no idea. The way my cars vacuum system is ran works and works very well. But somehow its wrong? Most people run WG source from the intake manifold. My car hold 15PSI like a rock and does not build infinate boost like you stated. which i said was false.1gawd4g63 said:Chill the hell out man, you are trying to say that the j-pipe is the incorrect place first off, than you are saying that the oem intercooler is too small, for a completely stock, stock boost level the oem intercooler is PERFECT, you need to take a chill pill because negative comments are HIGHLY frowned upon around here.
Thank you... at least a couple people are smart enough to grasp what I was getting at. You CAN run your boost source for the wastegate actuator from a different source such as the intake manifold(but why??) or the BOV line(completely wrong.. should never be done.. fucks with correct operation of the BOV.. been PROVEN to be wrong for a looong time, etc..), but why would you do something stupid like that when you have the BEST source right off the Jpipe nipple? That spot is going to give you the most accurate reading because it is the first part of the piping right out of the turbo and doesnt have to go through the intercooler or a shit load of piping that is, more than likely, leaking somewhere. You also want the shortest possible route for your WGA line to help prevent boost SPIKE.teamongen said:TravisB... you are incorrect. First off, who plugs off a vacuum and boost line source with a screw? Second, FROM THE FACTORY the nipple on the j pipe is connected to a tee which leads to the wastegate and Factory boost solenoid. The facorty solenoid is a bleeder, which lets off boost which is then rerouted back into the intake ( AIR intake). So the nipple on the J pipe is the FACTORY location and one of the best ( why run a long routed vacuum hose to the intake manifold)?
For the OP, tap and screw in a brass nipple; or have a shop weld on a nipple. Short route with was hassle and the correct location. FIY-Sometimes the part says it all...WASTE GATE.