Best BOV for a wrx?
best bov on earth
Registered User
iTrader: (1)
Joined: Apr 2003
Posts: 380
From: Not in the O.C. anymore.
Car Info: 2005 Evo MR
Just do a search, I did a quick one and came up with this... http://www.scoobytuner.com/products/...7&productID=92
but kind of expensive, you might be able to find something cheaper.
but kind of expensive, you might be able to find something cheaper.
VIP Member
Joined: Nov 2003
Posts: 1,684
From: Are you too one of the few still living the past? Well I can change that! With a simple wicket. Yes, my friend, a wicket. PM for details.
Car Info: No car right now....sob.
Do a search. A new BOV could actually degrade performance on a stock setup.
Registered User
iTrader: (11)
Joined: Sep 2003
Posts: 1,264
From: In my BUBBLE
Car Info: Rust bucketo
I have a question.... lets say you HAD to have a BOV. I have a friend with a 240, did a SR20DET swap, and he had the new black Apex'i S-AFC Fuel controller hooked up. He explained to me a neat feature that allows you to input decelleration fueling compensation or something. It's like when you let off the gas completely you are able to richen or lean the fuel mixture for a short duration until normal deceleration fueling occurs.
Does anyone know about this? This is supposed to be a good way of adapting a BOV onto WRX'S. What I don't get is how it works, and how you know how much compensation to input. Can't you get too lean? *shrug*
I think the S-AFC goes by percentage .. but if indeed this feature works, it's something to think about..
I don't like how my 2004 WRX doesn't respond that much under 4000rpm under high boost. Sometimes, I don't know if it is still in closed loop fueling, but when I boost a lot and shift at ~4k, the rpm of the engine hangs for a half second and drops slowly. When in the next gear, the engine feels luggy and feels like it takes too long to build boost.
Am I not passing the 70% throttle threshold for open loop fueling? Sometimes if I gas it enough, then the rpm's drop normally, but to me, that seems like a good way to waste gas.. ie: you can't shift at 3-4k smoothly unless you mash the throttle...
Does anyone know about this? This is supposed to be a good way of adapting a BOV onto WRX'S. What I don't get is how it works, and how you know how much compensation to input. Can't you get too lean? *shrug*
I think the S-AFC goes by percentage .. but if indeed this feature works, it's something to think about..
I don't like how my 2004 WRX doesn't respond that much under 4000rpm under high boost. Sometimes, I don't know if it is still in closed loop fueling, but when I boost a lot and shift at ~4k, the rpm of the engine hangs for a half second and drops slowly. When in the next gear, the engine feels luggy and feels like it takes too long to build boost.
Am I not passing the 70% throttle threshold for open loop fueling? Sometimes if I gas it enough, then the rpm's drop normally, but to me, that seems like a good way to waste gas.. ie: you can't shift at 3-4k smoothly unless you mash the throttle...
Registered User
iTrader: (11)
Joined: Sep 2003
Posts: 1,264
From: In my BUBBLE
Car Info: Rust bucketo
Originally Posted by 1neWRX
i shift at 3200-3500k all the time and i can shift smoothly...
Yeah, I can too, but i'm just saying that sometimes under heavy throttle (not enough?) & boost it seems really sluggish to respond, its really weird.
It's like comparing shifting at 3-4k to shifting at redline. At redline, its a quick PFFT of your stock BPV as you lift off and you can shift fast, because your revs drop in a flash. At 3-4k, the revs seemingly do not drop and linger there for a bit ...
Registered User
Joined: Oct 2004
Posts: 263
From: $$white for da clean, gold for da bling$$
Car Info: white/gold sti
bovs, bovs, & more bovs.
Originally Posted by NVubL
Well, from what I've searched and had experience with is that the very best would be the stock one but if you just have to have that sound, the next best would be the ones that vent 50/50, meaning 50% venting back into the car and 50% to atmosphere, the GFB hybrid does this as well as 100% vent to atmosphere. I've had it and it doesn't cause the car to backfire as much as the 100% vent ones like HKS, Apex, etc as long as you have it set up as 50/50. The Greddy Type S I have now also can be set to 50/50 or 100% but I've only used it as 100% vent. Really just depends on the sound you want.