I picked up the newest copy of D-SPORT and in there they had a 600+ whp eg civic. While looking at the shots taken under the hood, I noticed he had two Greddy Type-S BOV's. What is this all about, does it associate w/ high hp setups? I've never seen anything like this.

 

it all comes down to the ammount of air the turbo is moving. if you are still getting surge, the other valve will help it out.

 

rice

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by z6 &raquo;</TD></TR><TR><TD CLASS="quote">rice</TD></TR></TABLE>So dual waste gates are rice also I assume?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by z6 &raquo;</TD></TR><TR><TD CLASS="quote">rice</TD></TR></TABLE>

LOL the most over used word in the automobile dictionary.

 

maybe because its the most over applied term too... i see more and more of it, it's what gives us import guys a bad name (or on the bright side makes our sleepers even more dangerous )

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wdwalker &raquo;</TD></TR><TR><TD CLASS="quote"> (or on the bright side makes our sleepers even more dangerous )</TD></TR></TABLE>
Amen

 

amazing how quickly we get off topic isnt it.... 98% of h-t must have ADD
*hands out aderall

 

this is a common practice on high hp supras and yes it is because of the volume of air they flow...usually they put one bov near the turbo and one near the throttle body to quickly let out all that air

it is not neccesary on most set ups but when you run a very large turbo, a lot of boost, and a lot of power it can be helpful...on a 600whp civic he could run one tial or something else larger than a greddy type s but either way works

 

dual bov's are for looks

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by wantboost &raquo;</TD></TR><TR><TD CLASS="quote">amazing how quickly we get off topic isnt it.... 98% of h-t must have ADD
*hands out aderall</TD></TR></TABLE>

How many kids with ADD does it take to change a light bulb?..................................
Wanna go ride bikes?

&lt;====Has ADD, hence why my HW didn't get done tonight.

Anyways, back on topic. (Sorta) What is the point behind 2 wastegates? I'm guessing its a similar concept behind 2 BOV's.....

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by erau_pilot &raquo;</TD></TR><TR><TD CLASS="quote">dual bov's are for looks</TD></TR></TABLE>

not in all situation

different BOV"s are good for different applications.....

say, someone has a 400whp supra, and they are running an HKS SSQ...ok, that's fine
now, they toss in some 272's and an EMS and a PT88......you tink the BOV is gonna work fine now at around 1000whp? nah...it won't. well, options are either going to something like the huge Procharger BOV or something like a turbonetics Godzilla....and spending about $400...or just get another HKS for like $150 off someone.....and spend the other money on some race gas

 

call me rice after i get my new engine done ill be running 400whp-450 whp but if someone has a good deal on another HKS, ill install it too!

 

i dont think it's rice at all... you guys get 600hp and see if a single greddy type s can handle all that air!!

maybe he likes the squeaky noise it produces, so he just got another one.

it's kinda the half *** way to go because he could have gotten another bigger one to cover for the extra air and just use that one alone... but he just got another bov which serves the same purpose

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SOHC4life 96 &raquo;</TD></TR><TR><TD CLASS="quote">

How many kids with ADD does it take to change a light bulb?..................................
Wanna go ride bikes?

&lt;====Has ADD, hence why my HW didn't get done tonight.

Anyways, back on topic. (Sorta) What is the point behind 2 wastegates? I'm guessing its a similar concept behind 2 BOV's.....</TD></TR></TABLE>


dual wastegates are used for the same thing.

alot of people DONT realize the flow path of exhaust and why wastegate positions are so important. i know alot of EQUAL LENGTH STYLE manifolds have issues with this.

on mine i use a 6psi spring but with no boost controller it runs a perfect 10psi, because exhaust has trouble branching off 90 degrees the opposite way.

so the higher boosted cars, usually above 25psi runsomething like a dual tial 40mm wastegate set up to ensure proper boost regulation, because it is moving that much exhaust ut needs a place to go.

just like using 2 BOVs, it is needed to expell all that air. but if you look at where they are used it is almost always on something more than 500HP. not a 250hp civic

 

Well my setup now took a turn for the upper hp side and I'm thinking about selling my type-s, but when I saw that this guy had dual type-s bov's. So what works for 550 - 600 hp setups, will one ssqv do the job or is there a better alternative. From what I hear, the type-s doesn't have the best sound so whith aggressive sound in mind along w/ performance what works?

 

with 600hp, who really cares what it sounds like? lol

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSEGHATCH &raquo;</TD></TR><TR><TD CLASS="quote"> the type-s doesn't have the best sound so whith aggressive sound in mind along w/ performance what works?</TD></TR></TABLE>


Type S is one of the best sounding bov's ever made..

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Boostage &raquo;</TD></TR><TR><TD CLASS="quote">Type S is one of the best sounding bov's ever made..</TD></TR></TABLE>

Now that is a matter of opinion

 

Well like I said <TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by LSEGHATCH &raquo;</TD></TR><TR><TD CLASS="quote">From what I hear, the type-s doesn't have the best sound...</TD></TR></TABLE>

Also I don't want a gay turkey call bov either...they really irritate me

 

it's all about the 50mm tial bov


aggressive and flows awesome!

sounds like a crack of a whip :D

 

tials suck

if you're doing BIG hp...look at:
Greddy Type R
HKS Race
Turbonetics Godzilla
Procharger bov
Vortech mondo? max-flo...i can't remember the big one

 

he is running 2 because the Greddy type S doesn't flow at all, that is why it whistles. It compresses air into a small area then releases it. Why do you think Greddy has changed the RS noise, because now it actually flows. Just think of it this way, running a mile while whistling vs running a mile with your mouth open.

I have always hated the way the type S and HKS SSQV sounds, never really made me think of power, but that is my own oppinion.

 

I have always hated the way the type S and HKS SSQV sounds, never really made me think of power, but that is my own oppinion. [/QUOTE]

the higher the boost the better the hks sounds, it just dumps the air when its high boost. like a slap in the face.

and for the guy saying TIAL sucks, LOL on you, thats a first for me EVER. my tial 35mm never spikes, creeps, nothing nada, never HAS!!! even with a manual boost controller. EVER!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by SP00LIN &raquo;</TD></TR><TR><TD CLASS="quote">
and for the guy saying TIAL sucks, LOL on you, thats a first for me EVER. my tial 35mm never spikes, creeps, nothing nada, never HAS!!! even with a manual boost controller. EVER!</TD></TR></TABLE>


He was talking about the BOV, big guy.