no bov? its ok right

[xhdriver]

im getting a front mount, is it ok to run it without a bov for a week or two on stock boost?, anyone know?

[whateverjames]

stock boost on an SR? you probably have a stock bypass valve, and you will be fine.

[xhdriver]

i got a front mount and it eliminates the stock bypass valve, and intercooler and i cant get a bov just yet. has anyone ever run a front mount without a bov?

[nrcooled]

You need a BOV w/o it you will keep spiking bcause of the recurculating air.  Also if you got the piping already there will be a nice sized hole where the BOV goes.  Just go on e-bay and get a cheap one

[91CRXsiR]

if you want a cheap one you can get a BOSCH one but they don't make those cool PSSSH noises.. so i don't know if you want to go that way.. ideal for sleepers.

[rampid360]

It was designed to keep air from going back to your turbo and bustin up the fins.   If you cant afford one right now, best thing i can tell you is dont boost.   I know thats gonna be a tough one....but what can ya do?

[riot]

Shit...you don't NEED a BOV in the first place.  All it does is release the pressure in the piping from the tb to the turbo.  If anything it will just stall the turbo between shifts instead of keeping it spinning.

-ryan

[uiuc240]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (riot @ July 06 2002,11:45)</td></tr><tr><td id="QUOTE">Shit...you don't NEED a BOV in the first place. All it does is release the pressure in the piping from the tb to the turbo. If anything it will just stall the turbo between shifts instead of keeping it spinning.

-ryan</td></tr></table><span id='postcolor'>
Yes. &nbsp;Correct. &nbsp;In fact, many Japanese tuners don't use them because they are a source of leaks and running problems. &nbsp;No one has yet proven that a BOV extends the life of the turbo in any significant manner. &nbsp;For example, if a normal turbo lasts 100k, and the BOV makes it last 102k...do you really care? &nbsp;That's the "safety" we're talking about here. &nbsp;The BOV is mostly for sound purposes. &nbsp;The turbo will spool between shifts just fine...and if you're really worried about spool-upp at the track, learn how to speed shift so you never close the throttle plate. &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wink.gif" border="0" valign="absmiddle" alt=''> <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/cool.gif" border="0" valign="absmiddle" alt=''>

Eric

[rancid240]

all these newbies with SRs....fuck am I behind..

And who can live without that PSSHT noise on their SR? &nbsp;Certainly not me (if i had an sr)

[uiuc240]

I don't have the PSSSHHHHHT sound right now cuz I'm po' and have the stock recirc valve. &nbsp;For a while, my vacuum lines were hooked up weird, and the BOV wasn't even opening...so it made that "chuff chuff chuff" sound. &nbsp;I kinda liked it.

If you want an SR, start eating Ramen and save your $$$ <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/smile.gif" border="0" valign="absmiddle" alt=''>

Eric

[stvr6]

heh, I have my Sr but no 240 &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/lookaround.gif" border="0" valign="absmiddle" alt=':look:'>

But I'm stock piling performance parts and building it up before it goes into a 240. might as well since its already out! <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'> So the BOV is just a noise maker? good to know.. I might be able to live without it.. but not likely PSSSSSSSSHHHHHTTT

[xhdriver]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote </td></tr><tr><td id="QUOTE">If you want an SR, start eating Ramen and save your $$$</td></tr></table><span id='postcolor'>

thats what i did, but im just a "newbie"

[sykikchimp]

it's not just a noise maker. &nbsp;it is also to reduce lag b/w shifts, and I think it does extend the life of the turbo..

I mean your turbo is spinning somewhere around 100,000 rpm.. &nbsp;suddenly the butterfly shuts, and all that compressed air goes rushing BACK through the turbo, effectively spinning it the other direction, sort of creating a vacuum situation in the intake piping for a split second as you shift, everytime you shift. &nbsp;Then you get the lag from it spooling up again..

Personally I think they are nice to have, but not 100% necessary.

[uiuc240]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sykikchimp @ July 08 2002,10:03)</td></tr><tr><td id="QUOTE">it's not just a noise maker. it is also to reduce lag b/w shifts, and I think it does extend the life of the turbo..

I mean your turbo is spinning somewhere around 100,000 rpm.. suddenly the butterfly shuts, and all that compressed air goes rushing BACK through the turbo, effectively spinning it the other direction, sort of creating a vacuum situation in the intake piping for a split second as you shift, everytime you shift. Then you get the lag from it spooling up again..

Personally I think they are nice to have, but not 100% necessary.</td></tr></table><span id='postcolor'>
You're right about that. &nbsp;The only point I want to make is that the turbo doesn't stop or spin backwards when you close the throttle. &nbsp;Remember, there are still exhaust pulses keeping it spinning in the right direction. &nbsp;The only thing that is happening is suddenly there is no room for the air to go. &nbsp;So what happens instead is the air bounces off the compressor and back out the air intake/filter (creating the chuff chuff chuff sound). &nbsp;I'm sure this isn't GOOD for the turbo, but it's not life-ending either. &nbsp;Maybe it would be if you're pushing 30 psi...but I'm not.

I agree that BOVs are a good idea, and on top of that they make a cool sound. &nbsp;However, the original question was whether or not he could run without one. &nbsp;And the answer to that is yes. &nbsp;

Eric

[sykikchimp]

</span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (uiuc240 @ July 08 2002,11:39)</td></tr><tr><td id="QUOTE"><!--QuoteBegin--sykikchimp+July 08 2002,10<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'></span><table border="0" align="center" width="95%" cellpadding="3" cellspacing="1"><tr><td>Quote (sykikchimp @ July 08 2002,10<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/wow.gif" border="0" valign="absmiddle" alt=':0'>3)</td></tr><tr><td id="QUOTE">it's not just a noise maker. it is also to reduce lag b/w shifts, and I think it does extend the life of the turbo..

I mean your turbo is spinning somewhere around 100,000 rpm.. suddenly the butterfly shuts, and all that compressed air goes rushing BACK through the turbo, effectively spinning it the other direction, sort of creating a vacuum situation in the intake piping for a split second as you shift, everytime you shift. Then you get the lag from it spooling up again..

Personally I think they are nice to have, but not 100% necessary.</td></tr></table><span id='postcolor'>
You're right about that. The only point I want to make is that the turbo doesn't stop or spin backwards when you close the throttle. Remember, there are still exhaust pulses keeping it spinning in the right direction. The only thing that is happening is suddenly there is no room for the air to go. So what happens instead is the air bounces off the compressor and back out the air intake/filter (creating the chuff chuff chuff sound). I'm sure this isn't GOOD for the turbo, but it's not life-ending either. Maybe it would be if you're pushing 30 psi...but I'm not.

I agree that BOVs are a good idea, and on top of that they make a cool sound. However, the original question was whether or not he could run without one. And the answer to that is yes.

Eric</td></tr></table><span id='postcolor'>
doh.. &nbsp;no stopping! &nbsp;err..

[uiuc240]

ummm...yeah. &nbsp; <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/biggrin.gif" border="0" valign="absmiddle" alt=''> &nbsp; &nbsp;<img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/hehe.gif" border="0" valign="absmiddle" alt=':hehe:'> &nbsp; w0rd

Eric

[xhdriver]

thanks for the reasurance <img src="http://www.zilvia.net/f/iB_html/non-cgi/emoticons/thumbs-up.gif" border="0" valign="absmiddle" alt=':thumbsup:'>