Hoping you guys (and few and tremendously appreciated girls) can settle the "put a big nasty Greddy BOV" on John's new S60R argument...

Thank you in advance! :liebe011:

it depends, the CBV already on the turbo recycles the already compressed METERED air back into the turbo to keep it spooled. more efficient on fuel etc..

contrary to popular belief BOV's DO NOT and i repeat DO NOT, DO NOT, DO NOT give you any more power. they are in a way hugely wasteful, you have a huge release of metered air which the ecu has counted for and you will run lean as every time you change gear for a split second.

But if its the sound you want then by all means go for it. i am a turbo head, a car isnt a car without one, i tell people to slap me if i say something like 'you wont need a turbo in that' cos you do!

Do you research on bov's too. the sizing is all important depending on the boost levels you are running, too small and it defeats the point of having it, too large and you will lack boost, and increase spool up times after you blow.

Me, i love the sound in my 940, there is nothing like driving around, giving it beans with all the boy racers in they're (quite frankly) PANTS cars, and then changing gear, they instantly stop racing you and crash in utter amazement that a volvo has just spanked a bucket load of porn movie substances all over they're windscreen from the dump valve.

So i am going to vote that you DO put one on!

Matt

of course you asked the wrong guy here, too. and porn substance all over their windshield. classic. you kill me syko. just get the damn thing and pshhhhhhhhhh all over them. woooooooooohooooooooooooooo, smoke 'em doog. bad boys bad boys, whach gonna do when dey come for you......... i know, run to the greeks house. he'll hide us. :grin:

I gotta say NO!!

1- Might sound like a bit of a contradiction since I have a loud exhaust/dp on, but IMO there's a big diff between a great tuned exhaust and a rice burning BOV. It's Swedish, not rice :grin:

2- As Skyo said, the R intake is recirulated. Putting in a BOV would likely kill the boost that has built up in the system between shifts. If engineers decided to do it this way instead of a BOV, I think I'll stick with it.

:offtopic:
I'm beginning to think that Greek has the same disorder I do.

Symptoms may include:

1. A small devil on the shoulder chanting "faster FASTER"
2. The overwhelming urge to humiliate drivers of "lesser" cars
3. The unstoppable urge to stare at women, even in the presence of the wife
4. An intense dislike of cars with flashing lights on top of them

and finally-

5. a compulsion to shoehorn engines into cars that have no business being there. (I keep trying to justify a small block in my 245)


Is anyone else out the suffering from this?

i'll add a 6th .. well more of a 5 paragraph B: (and 11th commandment)

Thou shalt not leave the blue flashing lights in a cloud of smoke as ye speeds off and leaves the bmw's to try and catch up.

oh and greek ... pictures are coming dude!!! (and the comment about the wrong guy? whats that about - i am the right guy)

Matt

ps its not a disorder, just a slightly alternative parallel time line to the NA folks around. of course you cant beat an old skool v8 ... well you can - put 2 turbo's on it :amen:

no, meaning asking the wrong guy (me-have you seen my garage pics?) and funny thing, several years ago, i added two new tattooes to the many that are on my body. the first is, on the right shoulder 3/4 front, is a lil' devil with a pitchfork jabbing my shoulder with "YES" (in ole english script) the left shoudler has a cloud with a sign hanging under it that says "OUT TO LUNCH" my wife almost had kittens when she saw them. but then figured out that it was true. mouei-hahahahahahahahahahahahaha. are you sure you two ain't greeks, syko and doog? :grin: and s60R, i agree with you, but come on, nothing like rushing up on a ricer with his psssssssssshhhhhhhhhhh civic and a frickin' volvo pulls up alongside him/her with a bigger PSSSSSSSSSSSSHHHHHHHHHHHH, and you know that with the looks of your R, that would make them crap their pants. and it wouldn't be that hard since it's probably hanging off of their butts anyway. you would have the luxury, the speed, the sound AND the fact that the cops wouldn't give you a second glance while he has to deal with them on his/her **** for blocks on end. the littlest fart from their bov and they get pulled. oh yeah, big time BOV. come on , you know you want one too. join the dark side. we'll get to the big blocks later. start small. :thumbsup:

hahaha you saying that, i had a cop follow me 15 miles almost to my front door cos i over took him on a dual carraige way and changed gear .. i was only doing 50 to, the limit is 70 haha.

nothing like a huge bov though. but then again, you can get a huge re-circ valve, which is still noisy but doesn't waste out to atmosphere like the bov.

Matt

true, but what would you attach those duck calls to? or a saxophone. that is what i am waiting for. or a trumpet. maybe play some davis with the bov with a trumpet attached. now that is what i call cooool jazz. :57:

[quote=TheGreekMason,Jul 13 2008, 12:11 PM]
you sure you two ain't greeks, syko and doog? :grin:


I'm not Greek, I just married one. (true story)

As an aside, is it possible to mount the BOV with some sort of disable?
I figure bieng able to go "stealth" 90% (who am I kidding) of the time would be nice.

yeah i have seen a two stage lying around on the net somewhere, and its got a little electric feed to it so you can select - no its not a boost controller before people start to faff with me.

personally you dont need stealth, just dont floor it when you change gear all the time :)

M

I think its best to avoid BOV's on cars that utilize Mass Airflow Sensors, but if you really want the sound there are a couple options out there for partial blow-off.

BOV = less performance, your wasting all that pressure your turbo worked so hard to create.

unless you had it all computerised like a lot of cars do now, then you can add in the factors to the mapping for it, but for the split second that it wastes when your changing gear, its only open for like 0.3-0.5 seconds if your lucky, so it doesnt really matter.

its just people with no knowledge who go around thinking they know and start talking shite ... i have done my research and own about 20 books on turbo and superhcarging, had them for bout a year now, i dont proclaim to know them cover to cover like my 740 haynes manual, but they are very good books for an insight on how to tune your turbo and various things such as compressor sizing, exhaust wheel sizing, ar ratios, wastegates, bov's, manifolds, intakes etc ...

all very exciting stuff!! if anyone wants isbn numbers etc... just pm me :)

see, and when i said i wanted to start a syko fan club, everybody laughed. the man knows. but still, a trumpet on the bov? that's way trick. and you'll be the envy of all the ricer kids. or how about a glove that inflates only the middle finger? oh wait, that's been done. damn. and to doog, can i spot a greek or what? now only syko has to fess up about being a greek :grin:

We all know how hard it is to impress that group... :grin:

i aint greek, but i am a geek with a turbo brick that currently has his throttle body on his kitchen table in pieces cleaning with a tooth brush ....

...and we all know why the ricer kids have big dump valves, i think they are compensating for lack of ... in other area's, whereas volvo's, you gotta have cahuna's to mod these up :)