does it matter the design shape of the bov?
No not really. I dont think it really matters if the BOV is vented or not vented to the atmosphere in a converted NA car since the mas isnt expecting that air to be recycled. Really it depends on what type of noise you like. Very few are performance related nowadays.
7g for life!
If you're serious about boosting, the BOV shape and style is very, very important. In your case, it doesn't really matter. Just make sure you get one that you can actually use. Honestly, don't spend money on an HKS or TXS RFL or anything, a first gen DSM bov will be more than enough for you, and a hell of a lot cheaper.
Yeah, I hate a BOV that you can hear from 3 miles away....damn blowhorn attached to those things practically....
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The flange matters.
Design or shape doesn't matter. You just have to make sure you have the right flange to fit on the upper i/c piping and that the particular BOV will be able to handle the amount of boost you are planning to run. You want it to be able to hold and relieve the boost pressure correctly...or you can run into performance problems and eventually turbo problems. The Turbo XS ROFL bov is by far the loudest BOV I have ever heard. I will be using a HKS Type 2 BOV...holds high boost up to 30 psi and pretty quiet at low boost but decently loud on high boost. 8)
1991 Galant VR4 1948/2000_________1996 Galant "S" 5 speed 2.4L turbo
<div class='quotetop'>QUOTE(4-G-rim)</div><div class='quotemain'>Design or shape doesn't matter. You just have to make sure you have the right flange to fit on the upper i/c piping and that the particular BOV will be able to handle the amount of boost you are planning to run. You want it to be able to hold and relieve the boost pressure correctly...or you can run into performance problems and eventually turbo problems. The Turbo XS ROFL bov is by far the loudest BOV I have ever heard. I will be using a HKS Type 2 BOV...holds high boost up to 30 psi and pretty quiet at low boost but decently loud on high boost. 8)</div>
TXS RFL is one of the best sounding bov's out there. And yes, the design and shape does matter on serious applications. Just not for him. When you're making 900whp on a twin turbo trans am, you had better fucking well have a properly designed bov to relieve the pressure between shifts.
I disagree, In fact its the opp on high hp applications you dont want to vent boost while shifting you want to hold it , and for street applications it doesnt matter what kind that you use 99 percent of todays compressor bypass valves are oriented for manking a supid ass sound, you guys watch too much fast and the furious,
on high hp applications, if you aren't venting, then hopefully you have set up no lift to shift or have an auto so it isn't an issue. but if you have to let off the throttle, you do want to relieve the pressure to save your throttle plate, and maybe your turbo from extra damage. people have bent throttle plates. and there are still some good BOVs out there, the tial for example. the 1g BOV is excellent when modified to hold 30+ psi, but you will probably need a few of them if you're pushing a lot of air.
fast and furious comment aside.. some of us don't like compressor surge, the sound, the feeling, or the possible damage.
and more importantly, BOV design matters because some are really shitty and won't hold a lot of boost, for example the stock 2g, and i've heard the RFL is also like this. the 1g stock and greddy type S are very similar, and well designed using the diaphragm system. there is a leak stop kit that works on both of these to hold 30+ psi.
i also find it funny that you mention fast and furious, with your sig.
<div class='quotetop'>QUOTE</div><div class='quotemain'>91 gvr4 1166/2000 new motor shep trans mbc full 3* exhaust,o2 housing with atmosphere dump 3*gm maf custom alky/water injection kit, tubular manifold i welded up, 3* charge pipe 3* carbon pinger intake,atmos dumped compressor bypass valve, and thats all you need to know</div>
most people don't consider venting a BOV as one of their most important mods..
i am running a maf and standalone venting is my only option there smartass and rfl's do suck, the only reason i put it on there was to laugh at the dumbasses that ask wtf is that compressor bypass thinger
<div class='quotetop'>QUOTE</div><div class='quotemain'>No not really. I dont think it really matters if the BOV is vented or not vented to the atmosphere in a converted NA car since the mas isnt expecting that air to be recycled. Really it depends on what type of noise you like. Very few are performance related nowadays.</div>
any car with a mas before the bov will have a/f problems when you vent.
its has nothing to do with turbo non turbo ecu. it has to do with the ecu metering air and the engine not seeing the same amount that was metered. have you ever tried to run your galant without a mas? pretty much whats going on here. when you shift at high rpms, all that metered air escapes, if you throw it right into next gear, you may not notice a difference, (except your ecu will) but if you shift into neutral lets say to stop or something, your car will most likely stall out. You really don't have to worry about it dying on a strip, but on the street, it "CAN" be pretty dangerous/inconvienient.
some times i vent most of the time i recycle. and if you have a metal intake like an injen, you can hear the turbo spool quite well, and you can still hear the blow off valve(and so will everybody else if that matters to you)
i run a hks racing bypass valve principaly because it has one of the largest diaphrams available, it has a very large port for releiving pressure quick.
______________________________
1994 Galant GS-Turbo
as pointless as it may be, you could still recirculate back to the intake pipe, it has nothing to do with a maf and standalone. true, it wouldn't make sense to if you are running a maf in blow through, but it would be quieter then venting to atmosphere.
anyways, point is, don't assume that everyone is a ricer fast and furious wannabe, some people here are actually interested in speed. they come here for the advice and guidance of others, not to be insulted by them.
oh, and i also vent to atmosphere, i have a tial. holds boost nice, but a bit too nice, i find that it surges too much. i think i would rather run 2 smaller BOVs that can hold boost well. a single 1g was not releasing pressure fast enough.
and don't bother trying to say i'm being a smartass, i'm not the one trying to pull up all these old threads to put in my $.02. and if i really wanted to be a smartass, i would've said something about run-on sentences
DOHCSTUNR, thanks, i knew i missed something
in addition to what he said, if your BOV leaks and you are venting post-air metering, you will run rich as air escapes. as if it's not enough that your turbo has to work harder to get the same amount of boost, when you're venting with a leaky BOV you will be slower because of running rich. it also makes it more difficult to tune.
hey, how is that HKS racing BOV working out for you? i wanted to get that actually, but could only afford a tial or hks ssqv at the time and the ssqv was out of stock. does it leak at all at high boost? and does it surge at all?
true that, and i know what the purpose of a bypass valve is and i also know about the rich condition> i have owned 9 talons from 300 to 700 hp> the only engine i know is the 4g63t, so all of this i already know.there is a way around atmos dumping with your stock mas w/o running like crap/. i didnt know this crap is old i am new to this site and dont know crap about it. i know dsm's thats all
i was just messing with you man. just try to be more lighthearted. a lot of people here are into things other than performance, and you just gotta learn to tolerate that not everyone is into performance as passionately as you are. i'm with you though, but a little too much, i got so involved in learning performance that i let the body of my car fall apart
Speaking of not caring how your car looks, thats what i am allll about man all go.f some show i make my cars ugly on purpose, it makes it that much better, true story, pulled up to a middle aged hot shot ass wipe and his 18 year old bitch in this beautiful ligenfelder supercharged zo6 waste of a good car if you ask me, anyway i was in my warbird 751 whp 90 tsi awd talon 2.2 ffwd connection xp stroker gt 30 r turbo and the list list goes on and on and on anyway. him beautiful zo6 with a hot bitch i pulled up next to him with my flat olive drab green dented ass car.wound my shit up to 8000 let it go he laughed, lol so did i, light turned green he took off like a bat out of hell.i counted to 5 put my car in second and took off at the top of3rd i was next to him.he was going all out pedal in hell i started fucking with him got next to him stomped it and let off while he was trying to pull on me.his bitched looked at me i winked and laid the pedal on the floor i destroyed him. next light he pulls up i rolled my window down and said AHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHAHAHHAHA HAHAHAHHAHAHAHAHAHA HOWS THAT FEEL YOU SLICK RICK NEEDLE DICK MOTHER FUCKER GO SHOVE DADDYS CAR UP YOUR ASS YOU DICK SUCKER
I thought hte stroker kits were 2.3L, not 2.2L? That last post doesnt belong in here anyway, go post in the right forum. I want to see pics of your "warbird" I cant really make out what happenned in your "story". You launched from 2nd? You launched in first, waited 5 seconds then hit second? 751hp awd 1g dropping at 8 grand, you must have a bulletproof transfer case. Your story is full of holes, I suggest you go fix them...
7g for life!
who said i launched?i revved my car up to 8k, LOL an 8k launch not on your life performance rebuilt trannys arent cheap, the point was pretty boy in his nice ligenfelder got his ass handed to him by an ugly ass eagle. You can get any size stroker built. lol there are not holes you just cant read. pics why would i show you pics its not relevant to anything and i dont take pics of my cars who the hell would its pointless a car is a car. your making a big ass deal over nothing lol I WANT PICTURES WTF ARE PICS GOING TO PROVE I CAN PHOTOSHOP A 700 CUBIC INCH BIG BLOCK IN MY EAGLE. DOES THAT MAKE IT TRUE seeing is everything you want to come see it be my guest.
Well next post you make, I suggest you start using punctuation. Its hard to read your posts as the words are just thrown in there at random places. Learn to write and come back. kthxbye.
7g for life!
HA your a smart ass. I am more than capable of writing. but that you for the smart ass comment. You know it a shame when one ass wipe butts in something thats not his fucking buisness and ruins it. But hats life short and pointless. Maybe rather than you try and insult me, you should try to MIND YOUR OWN FUCKING BUISNESS. and if you think i am being harsh on you i'm not i am being very very nice
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