Guys, no matter what you do. It will flutter under part throttle. Tuning this BOV requires you to know what to look for. Stiffer the spring, the less likly to flutter under part throttle. To stiff and it wont open soon enough. The point is to relieve boost pressure before it backs up into the turbine blades causing them to slow down, which reeks havic on the wheel, bearings, and blades.

Stalling issues are related to soft spring and or improperly adjusted idle/air screw. Also if you have been ecu flashed have the tuner turn of the set idle. My idle is set at 1100 RPM.

 

Stiff spring insures no boost leak under high boost pressures.

 

Aps Bov, Twinvent

 

well my greddy bov has been flutterin like crazy at any rpm too...but how much psi can the aps bov????

 

hmmm where is that search button, o yeah up top right corner.

 

If you are worried about holding boost get the works DV. Just like the stock IX but with a stiffer spring. The sound should not be your primary concern. All the cool sounds in the world won't make your car perform better.

 

Stock IX BOV is the best for street driven under ~25 PSI.

I tried Forge DV, Forge DV adjustable and HKS SSQ. Ran into driveability issues... stalling mostly. Came back to the stock one and I am happy! :-)

 

hey thanks for the advice!!!

 

I have a crushed 1g bov and the thing is great. No partial throttle bucking problems at all

 

yea ,,thanks alot for your help!!

 

i would expect the same treatment from anyone else, especially if I had your ix, knowing that it had that awesome diverter valve!!!!! It just suxs to see that you wasted your money on that greddy piece, Good Luck!

 

stock...

 

my rs bov used to do that to i had it for about whole five min took it back n brought the hks ssqv sounds real nice couldnt be happier

 

Im using the forge right now! I think its pretty good, Im curious though as to why I heard the HKS SSQV isn't good for the evos... Anybody know why? But I do have the forge and I like it. Its loud. And its recirculating...... Kinda sounds like a mix between the HKS and the Greddy TYPE S.

 

but i think the stock bov wont do me any good when im running 28 psi...