Sick of people saying "Don't run VTA" when probably 99% have never had a VTA BOV on the car. They simply take what others say and pass it on as fact and have no experience on it whatsoever.

I went against what everybody said and got the Tial BOV and my idle has been completely spot on, just as good as the stock DV idle. I did not change anything in the tune. My friend had the HKS BOV on his 8, it idled perfectly. It makes me wonder if there was only one person that had idling issues and everybody took his word for it and spread it as gospel.

My advice: get the Tial. You have a 9 which has less idling issues than an 8 when it comes to BOVs (at least from what I've seen). The Tial is a tried and true product, it holds boost well under load and it vents it extremely well.

There's a reason so many race cars run this BOV.

CEL comes on regardless because the MAF isn't picking up recirculated air. At least mine came on because of that.

Switch to speed density = problem solved on the cel.

Babs - you may not be noticing any issues, but it's definitely running rich between shifts if your still on the maf. Race cars run the Tial because it's tried and true, holds boost great, won't break etc etc. In my experience it ONLY ran good at WOT though. Any time I was getting on the freeway, any high-boost, low-rpm situations the BOV sucked donkey tip and completely changed the drivability of the car. I went back to the crushed stocker and later the Synapse which has gave me the drivability back while still holding 30+ psi.

When a few have approached me about hiccups with the Synapse, it turned out to be issues with either (a) the way they routed the plumbing, or (b) other issues that the BOV exposed. Plumb it properly with an air-tight setup and it works - no time wasted juggling springs.

A word of wisdom - The BOV manifold signal needs to be a dedicated line with nothing else tapped into it for best results. Tap a BOV into a boost controller signal line, and one will wonder why the BOV doesn't work properly - assuming of course he even realizes it.


And now you know why users recommend not using VTA with a mass air setup.

i think the APS twin vent is a good choice for around 30psi daily driver

im very happy with my synapse !

Editted

Running rich between shifts never hurt anything

And as far as drivability, yes it may flutter some on part throttle but I do not think it affected drivability at all. I use it especially as a source of humor whenever I have passengers in the car

Because it throws a CEL? If that's the case, why don't so many recommend not running a test pipe? That throws a CEL.

Granted, the only reason I went VTA was because I had the Tial sitting around from my previous car and I probably would still be recirculated if I didn't but now that I have the Tial, there's no way that I'll go back.

I had the wrong spring in it it was hanging opening between shifts..

For your power level and Problems you were having the synapse Is ideal for your application..What's up with the fake youtube advertisements that company does vs tial that find people that heavy the stiffest springs in there and use them as comparisons .The bottom line is if you get the right spring the tial is the best bov you can use period..

I thank all of you for your opinions on my question but I think I have found the best option is crushing the stock bov for now. I crushed mine tonight and it has completely solved my problem.no flutter yet and I've tried really hard to make it happen and it won't.

i have the recirc hks ''race bov'' and i have some idleing issues some times other than that it works ok but from the looks of this thread i need to get rid of it

That bov is junk I WOULD ONLY RUN A TIAL OR SYNPASE.

good to know anyone selling one

That`s what happened to me today. Check Engine LOL.On the stiffest setting. My BOV is crap and leaks big time while accelerating. I`ll try TIAL Any suggestions ?

TIAL Q FTMFW lol