Hahn Setup -weird bov

[SilverEclipseT]

Im curious to know from the other peps out there with the hahn setup if you get a weird Air thud sound before or when your BOV goes off. Following the instructions and which vac line they tell you to put it on my BOV always seemed to make a thud air noise. I tried 3 different BOV's they all made the same noise. Now i have my BOV T'd into the vac line that goes to the pressure control sensor which now and again at low boost i still get a thud noise. Anything over 5psi seems to be fine though. I have the HKS SSQ BOV. I get like 3 different noises out of it. the high normal pitch at 8psi. then under 5psi i get either the low whistle or this air thud noise.


Anyone got any ideas?

 

[SilverEclipseT]

A little adition to this, now i seem to be getting the normal BOV sound and the thud noise mixed.

When i shift it sounds like "thud..pssshhhhhhhhh" The more boost that is there the shorter this thud sound is. Im just concerned that pressure isnt getting backuped in the turbo.

 

[siueclipse]

you should call hrc and ask them, i didnt start off with the hrc bov, so i couldn't tell you.

james

 

[SilverEclipseT]

you should call hrc and ask them, i didnt start off with the hrc bov, so i couldn't tell you.

james

I know you removed the cruise control lines from your eclipse, but i was interested to know how you have you vacuum lines setup. What lines are your BOV, and FPR on. Also did you change anything else around?