Some of us might have over 300 whp with stock internals so you should be ok just do not turn up the boost much. good luck B
forge bpv or hks bpv
- Thread starter Bonafide_Spd3
- Start date
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
Thanks man, Yeah, I don't really plan on turning up the boost. I wanna see how much my stocker is pushing before I buy my bpv. So I can kinda trick my wife by saying look baby, my car isn't working right can I buy this. And then I'll be set
ever seen fast and the furious? That's what made the Greddy Type-S famous! Thats what the green eclipse was rockin. Most people with Eclipses have the type-s for the badass sound.
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
Yeah, haven't seen the movie in a long ass time though. Don't remember the sound of the bov either. Your probably the first one I saw one here talking about the greddy. Everyone else talks about forge or hks. Since I've joined I've never seen anything about the greddy type s. Sounds hecka cool
i know forge and hks are good, but I believe its more of a "hype" with those right now. Because the forge is MS3 specific and a lot of people have them so its more hyped. The Greddy type-s has been around since the early 2000s, I had one on my 95 eclipse GS-t back in 2003 and loved it then and could nto get the sound out of my head for years and had to have it.
TRUBOOST had it on his, and he's heavily modded (21psi i believe he runs) But others do as well. Lestat13 also has the type-s on right now and him and i talk back and forth. He really likes the sound of his. He also has the turbo xs 50/50 hybrid which is a great valve and popular as well (for good sound). PM lestat13 and he will tell you the benefits of each if you like.
Even at the cheap prices type-s knockoff it works well and holds up nicely and was $60 for everything. which is 1/3 the price of the turbo xs and less than 1/2 the forge price and probably 1/4 the price of the hks.
If you need an affadavit or something for you wife I will be glad to help a brother out. I am close to a notary public. Lets see, The stock valve has been shown to limit the gas mileage and comfort of the highly acclaimed Mazda 3. For safety reasons we suggest strongly that a Synapse or HKS unit be installed asap. For the children, of course. I am here for you Bonafide
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
haha, yeah... I think my kid will like the noises as well. Dang, good thing I got some time to think about which valve I want. I do like both the sounds they make. I just looked up some stuff on the greddy, you have to order the different parts for the recirculating fitting and the flange? They both come out to be around the same price. Uhateit, yours was in recirculating right?
yes mine is recirculated, You dont need a recirculating adapter tho. The stock recirculation tube will fit over the neck that sticks out on the side like I was showing you. These are the items needed:
ATP SU adapter flange for the MS3, $30 shipped from SU
Immitation Ebay Greddy Type-S knockoff, $30 shipped off ebay. This is the one in MY video that gives the loud KOOSH sound like stock but much louder:
Installed picture:
Or if you choose to buy the REAL Greddy, this oen is about $100 shipped for this valve and gives the loud whistle from that Miata video:
Installs just the same as the other one with the same adapter
Regardless of what valve you choose, just make sure whatever brand you get has the neck that sticks out on the side so you can recirculate the valve so your car runs better.
are you experienced on how to tune? I want to run VTA because I like the sound
I just don't know what is involved with a tune, what it actually does, where to go, and how much it costs, how long it lasts, any negative effects, will it need to be changed before a dealership visit or cause you not to pass smog? Hey Eric PM me on this if you can, if you know about these things.Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
Thanks for all the info guys. So the recirculating hose goes up to the area where the air would vent to the atmosphere? How do you keep the hose from coming off there? I saw they sale recirculating fittings for them
the neck that sticks outwards is where the recirculation hooks up.
i found this online of a diagram of connections:
the stock hose comes with a black crimped clamp, but on the type-s the hose just stretched over the open neck
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
so where the atmosphere or turbo inlet is where the recirculating hose hooks up. I think the greddy does sound better than the hks now. After watching a couple more videos
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
Atermarket bpv holds boost better than the stock valve. I'm waiting to see how much my stocker one holds once i get my ventpod. I thought i would get my boost gauge today but I guess not. I also like the sounds of the aftermarket valves
john blutarski
Member
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- 2004 Subaru WRX STI
The improved response and ability to hold boost better at higher rpm was definitely noticeable in my Forge BPV. They serve more purpose than just noisemakers.
yeah, i just realized the diagram wasn't saying recirc on it. But yeah thats the one. If you take your stock tube off it will slide right onto that inlet. Like the other guy said, running vta makes the car have bad mpg and poor idling/stalling. its better to recirculate it. The car needs to read the air that blows off to adjust fuel n all that. But if tuned you can vent it and get the really really loud sounds.
As far as performance, if you floor the car and have a boost guage with your stock valve on there you should see it start to drop in psi as you are driving at wide open throttle, thats from the stock one leaking. But with an upgraded one, if adjusted properly will "hold boost" instead of allowing it to slip out. Basically you lose the top end power. Sometimes even with the stock one it will leak under low boost prematurely, and the response of the bov acting as such can affect the driveability of the car and the car will not run as smoothly.
Safety wise, the stuff mentioned above can also affect the life of the turbo. So in a sense its safer on the turbo to have a valve that works properly so the turbo doesn;t have to work harder.
But sound is always a fun plus to add to it
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
I rather have performance than noise. The greddy looks smaller in size than the hks as well which is a plus
some have had fitment issues with the hks and aftermarket intakes. The greddy and immitation are both very small
Bonafide_Spd3
Member
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- 2007 Mazdaspeed3 GT Cosmic Blue
Nice...
