I just recently installed a perrin MBC and im also running a greddy RS BOV. Im getting some flutter around 50% throttle and it only happens only after 3500rpms+. What are my options to fix this?

 

check your diagphram

 

What Bov would eliminate this problem?

 

Purchase a evo 9 metal BOV or JDM evo 8 metal BOV. Much less flutter. Flutter is going to happen with any strong springed DV

 

there is a fix for the greddy rs valve to eliminate this problem. Look around and you will find it.

Or, the simpler fix would be to get a JDM evo 9 valve. When in doubt go OEM with a bov as at your boost level (stock turbo) its going to be the best choice for you.

Although you could looking into the synapse engineering bov. I will have a complete review of this bov in a couple days.

 

Did you get a chance to post a review?

 

have you done the single spring mod to your greddy rs bov yet? http://evomoto.com/tech_info.php?tPa...3451166315b271

 

That's showing a Type-S, I'm not so sure that they're the same thing.

 

The single spring mod still applies for the RS, I've previously done it and it worked for a while. That was until the diagphram crapped out on me and developed a few small cuts causing the fluttering to come back. Check your diagphram for cuts. Overall I'd go with the IX bov.

 

BOV and EVO dont belong in the same sentence. BUT if you really want one. Buy a dual port, or else you're gonna have problems. Best bet is to go with the metal MR BPV!!!