Im curious guys

I got FORGE Reciculating dump vavle, model number FMDVEVO15 but i get this fluttering sound and the BOV came with 2 diff springs in the box RED and YELLOW, currently the BLUE is inside the BOV. Im pretty sure it has diff spring rate,
could this be the springs thats making the fluttering sound? I dont think I got a leak under the hood, all I hear when driving upon acceleration is the fluttering from the BOV....

When and I change it to stock BOV fluttering is gone.

Opened the BOV seems seals are ok, and greased up ok..

Anyone?

THx!!

 

I have this problem with my Forge, thats why I switched back to OEM

 

hmm..I think Ill call Forge tom and find out why is this happening..Thanks Talon

 

stay with the stocker

 

Funny, I have this as well but I didn't think anything of it. Keep me posted, on what you find out.

 

Stock one flutters too...at odd times.

 

My stock flutters as well I don't think it's just aftermarket.

 

Let me ask you how much boost are you running and why are you wanting to use a different bov

 

because he wants the sound!

 

my forge bov doesnt flutter but it does blow off very easy under very light boost witch makes it a nightmare to drive on the highway with the cruise set

i think im going to try to put my oem bov back on today and see how it is
i realy dont care about the sound i was running it because i paid for it with my turbo trix hard pipe set

 

If you are worried about blow back, try the yellow spring and see if you still get flutter.

 

I got the same kit, from TT. same thing happens..

 

Ok yellow spring I will put on tonight..see what happens

thx

 

hmm.. hope everything works out for you bro...

 

I have a IX with the stock bov, so I'm not sure how directly my comment compares. With the bolt-ons I have done (everything up to Cosworth cams at this point) + tune it seems that when I am driving 65mph to 70mph in 6th, I am right at the point where boost is really building. Any deviations with accelleration may cause quick, small spouts of blow-off, which sounds like fluttering.

Is your specific scenario occurring at all ranges in rpm? Is it constant? It is interesting to note that others in this thread seem to be experiencing this same issue with this bov. G/L!