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FrankenSTI
10-05-2005, 03:26 PM
I have a 04 wrx with a motor swap it has a 2.5 block with a stock wrx head i need to know some good blow off valves for me. any opinions welcome. :idb:
PSINXS
10-05-2005, 03:30 PM
anything works fine. a bov is a bov pretty much. depends on how much boost. anything over 25psi use an hks racing bov. anything below that is based on preference. what u looking for in a bov?
1 SICK GT
10-05-2005, 06:32 PM
i recomend hks or greddy
GTScoob
10-05-2005, 07:02 PM
WRX motors need a recirculating BOV which really limits your choices. A full atmosphere BOV will make your car run very very rich between gearshifts(cool for fireballs but not for speed) and also hurt your spool time.

I've got an APS one on my car. Forge makes good sounding BOVs as does Go Fast Bits (GFB). They all do the same thing so listen to different ones and see what sound you like.

What turbo are you running? The stock bypass valve is good up to around 20psi and an aftermarket BOV simply is just louder and many people see it as a "ricer" mod.
FrankenSTI
10-06-2005, 11:27 AM
I was considering the forge recirc. but a buddy of mine jerimiah with a evo brought a company by the name agency to my attention it is 50/50 0r 100% recirculatory, ever heard of them?
I am running on the stock turbo right now at 14 psi which is very week for my motor swap.
GTScoob
10-07-2005, 03:06 PM
Never heard of Agency.

stock boost eh? Do yourself a favor and pick up a used VF39 off an STI(most are selling for around 300), a cheap boost controller, and a boost gauge. Bump the boost up a bit (untuned maybe 16 or 17 psi, possibly more if you get it tuned) and you'll be happy.
Integra1992
10-09-2005, 06:36 PM
thats quite alright ill just get a bigger turbo and bump it to about 20 t0 30 then ill be happy!!!!!! :eek:
Rican219
10-11-2005, 08:07 AM
Never heard of Agency.

stock boost eh? Do yourself a favor and pick up a used VF39 off an STI(most are selling for around 300), a cheap boost controller, and a boost gauge. Bump the boost up a bit (untuned maybe 16 or 17 psi, possibly more if you get it tuned) and you'll be happy.

He has an STI Block with stock head and it is slightly tuned.
rolling_trip
10-11-2005, 08:08 AM
i have a gfb 50\50 on mine that i like
FrankenSTI
10-11-2005, 10:37 AM
:D Have you had yours tuned since you put the gfb on?