Boost leak or not?

[whiteflash]

Ever since i got my UICP and 1g bov, there has been a whistling sound when i come to a stop or let off the gas. My first problem was that my BOV dump tube didn't fit exactly on the intake so I went to Home Depot and kinda made my own dump tube. In doing this, it reduced the whistle noise and i only hear it once in a while for a short period of time. So that makes me think the whistling was coming from around the bov, dump tube, intake area, instead of the intercooler pipe meeting the UICP, which is where i first thought the sound was coming from. Is it possible that the whistling is coming from this area? and what kind of tubing did you guys use to recirculate the BOV instead of the stock tube?

I made a boost leak tester similar to the one in the link, but when i hooked up my air compressor to the tester i couldnt get more than 3 psi in the system, Is their anything i need to cap off while doing a boost leak test?

sorry for the newb questions...thanks

Jordan

http://www.vfaq.com/mods/ICtester.html

 

[anubis]

if you're doing everything according to that vfaq, you should be building more than 3psi in your system. there is nothing you need to block off. you obviously have a leak somewhere. just keep pressure in the system and see if you can find your leak - some soapy water or a good ear (listen for hissing) will help you better locate your leak. if i were you, i'd focus on the places you disturbed - mainly the bov and uicp. there's a good chance you didn't get something clamped down all the way.

 

[Wildeclipse2000]

You need to block the lines coming from the MBC as they have a bleeder hole in them. It does however sound like you have a massive leak somewhere else. But first pinch the lines going to your MBC and then recheck the boost leak tester.