What is this??
 

Well I got my wastegate today and there is a line that I don't know what it's for. I'll post a pic showing what I mean. There is a nipple for vacuum but then there is a big nipple, that is what I'm talking about. Oh yeah the wastegate is off an Audi. This is in another topic but not to clear there and is mainly a top showing the pics of the wastegate itself. Hope someone knows what it's for....

http://www.newbieforces.com/files/wastegate.JPG

Re:What is this??
 

I think you would use the bottom line and not the top line. I don't think it will ever release if you feed VAC/boost into the top line. I could be wrong though. ???

Re:What is this??
 

This is just a complete guess, but could it be a computer controlled boost controller? The car's computer controls the vac/boost going to that side to control the boost higher or lower to cancel out the other side's action.
Did anyone understand what I just said? :-\

Re:What is this??
 

???

Re:What is this??
 

i think the top nipple is just a vent for the top part of the diaphram (spelling)

Re:What is this??
 

Yeah that makes sence. The air needs a place to go. So it is bled off through that nipple. I would think that you need that bottom one. Come to think of it none of my friends have used the top one either. ;)

Re:What is this??
 

Sweet sounds good, so I just have to find a 3/8" vacumn source now. The line is pretty big that is why it is throwing me off.

Re:What is this??
 

Dammit jiggaman... That avatar is just dirty, dirty, dirty. and Oh lord she is such a tease :-*

Re:What is this??
 

yes sir thats the bottom line u hook up to.

top line if for MBC :)


did u drill out the top of the cap to find the adjustable hex screw? ;)

Re:What is this??
 

Never drilled it out yet, my uncle has some spring in his shop that look identical to the wastegate spring. I'm gonna try it and see if I can lower the boost.
Does anyone know how to check the wastegate to see how many psi it is set at? Just so I can set it before it goes onto the car, it'll be easier now than taking it off a million times while its hot.