hi guys
i have a greddy rs on my 9 rite now and all it does is flutters ,,anyone know what my problem may be ,,,
and also if you guys have something else on yours car or to recommend please let me know ,,
pictures of sound clips welcome!!!
thanks alot!!!

 

Poeple have this rush about BOV that I don't understand.. The best BOV for minor mods is indeed the stock one that comes on your Evo 9.

Later on when you start boosting the hell of the turbo then you might replace it. Whatever you replace it with get a recirculating one unless you go with a big turbokit then get a Tial.

As far is the sound, you will be amaized on how the stock BOV sounds when you run anaftermarket air filter

Carlos

 

i put my rs bov on with the BR air filter together ,,therfore never get to hear how the stock one sounds

i use to run a type s on my gsx it was nice!!

 

evo 9 stock bov is the BEST bov...

 

The stock BOV on the Evo 9 are indeed better than other aftermarket BOVs. Put the original back with the BR filter that you already have and you wouldn't regret.

On your GSX it was an improvement because the GSX have a cheap plastic BOV known to leak so on that case was a improvement.

As I said before, unless you are boosting a lot you should replacing the already bad a$$ stock BOV.

Carlos

Carlos

 

thanks alot ,,i do know that the stock one are good ,,but only holds like 24-25 psi
i really want to keep the rs and find out what is wrong with it !!!

 

your problem is that you're running a crappy aftermarket bov.

go back to your stock 9 DV, which works perfectly. if you ever VTA, you WILL run into driveability issues. the stock DV is good for like 25psi...anything higher would be a good reason to upgrade...but not to a VTA bov of course.

 

how does the stock bov sounds!! it is a lound woosh

 

Nope. Logged it, a IX is different when vented externally. I think it may actually be smoother in low vaccuum/low boost off throttle transitioning such as on the highway.

I wont deny that the Greddy is not the best BOV on the market however.

 

^^^I don't concur at all. The stock BOV with the air intake to BOV hose unpluged will cause you partial unwanted hesitation that othwerwise wouldn't exist if the BOV hose was properly plugged.

Additionally when driving the car in hard conditions the BOV will actually partially get stuck open giving you slow spool up and lost of boost..

Carlos

 

+1 on keeping the stocker, sell the RS to an VIII owner...lol

 

On an VIII with the wrong BOV maybe. On a IX with the right one, No. My testing isnt fully complete but I had more hesitation and "bucking" with the stocker than I do now with my current test item. On the highway with low load, but just enough to where I was at 5"-0" vaccuum to 3 psi of boost, it would shake violently when I let off. It is now significantly smoother and not only that it is instaneous. I havent logged a sudden severe rich spike as apparently was the case with the VIII. It doesnt stall, bog, hesitate, or idle funny as I approach a stop. Spool is still the same and between shifts hasnt changed at WOT.

Your results may vary.

 

 

how about the forge dv for the evo

 

lol some of u guys are really set on changing ur bov huh?