bov

All technical questions and answers regarding starions, being modifications to maintenance.
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jedi
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bov

Post by jedi »

what the best bov to put on starion? i just cant get one sounding decent or working properly on my starion. :?
Last edited by jedi on Sun Jul 15, 2007 8:28 pm, edited 1 time in total.
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Starion_Turbo
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Post by Starion_Turbo »

Best? What are you after?

Something thats notv too cheap, its probably best to stick with a branded one, at least you know it will work on any car thats turbo and you can get parts replaced for it.

I personally opted for a GFB Stealth FX back in 2003, I can adjust the volume completley by choosing how much air I want to vent and the rest is sent back to the air box hose. It dosnt get much better than that in my opinion.
Powerplant: Chipped stock ECU, 2044cc, 8.5:1, head intake enlarged and polished, exhaust manifold enlarged,
Balance-shafts eliminated, Intercooled, TC06 @ 10psi, 2.5" high flow exhaust system and dump pipe.
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Post by enthuzed »

One that works would be a good idea.

The plastic Bosch ones they fit to Saabs and that are not useful for the Staz, they might only be about $50 new from your local speed shop, but they don't really work well on a standard car's crossover pipe.

And adjustable like S_T said, so you can make it work best.

Hey S_T, hows the Gemini project coming along?
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S0LJAH
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Post by S0LJAH »

best sounding bov out there is the greddy type r
not too loud and not a massive long woosh sound just nice short and sharp as theyv got huge outlet
pretty pricey tho $400-500 new

hunted one down for my car 2nd hand :D
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Starion_Turbo
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Post by Starion_Turbo »

enthuzed wrote: Hey S_T, hows the Gemini project coming along?

heh, no good, the cars on a different propperty to me coz theres no room for it here, so working on it is to much of a hassel.
Still I'll get there some day.
Powerplant: Chipped stock ECU, 2044cc, 8.5:1, head intake enlarged and polished, exhaust manifold enlarged,
Balance-shafts eliminated, Intercooled, TC06 @ 10psi, 2.5" high flow exhaust system and dump pipe.
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Post by benny »

i'd love a sequential, that whole "tew,tew,tew,tew" but i gots other bits to do first
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Starion_Turbo
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Post by Starion_Turbo »

The sound you describe isn't produced by the SSQ valve itself, its refered to as flutter and it's actually caused by the turbocharger.
Cause is the compresser blades slipping on air (compresser surge) creating a pulse like affect as it pumps air and then slips, this makes the air flow uneven and causes the BOV venting ability to pulse slightly, its most common on nissans.
Powerplant: Chipped stock ECU, 2044cc, 8.5:1, head intake enlarged and polished, exhaust manifold enlarged,
Balance-shafts eliminated, Intercooled, TC06 @ 10psi, 2.5" high flow exhaust system and dump pipe.
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igottasicjb
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Post by igottasicjb »

It’s also the fastest way to kill a turbocharger. Inside all turbo's, ball bearing or journal there are thrust washers, which limits the amount of forward/ aft movement of the entire shaft and wheels. Compressor stall (TEEW, TEEW, TEEW, TEEW) makes the shaft hammer back and forth which WILL wear out these washers in no time at all. Once the washers go the next thing are the turbine oil seals and when they are gone you have a smoky as hell car. This is the main reason BOV/ plumb backs were invented, the fact they reduced lag on gear change was a bonus.

So if at full boost your BOV is still making this noise it means you BOV/ plumb back is not flowing enough Air to alleviate air hammer and compressor stall.

The best way to make this noise is to not use a BOV along with a larger inlet tract IE intercooler and piping, but i hope you have plenty of coin to rebuild turbo's.
boost = the replacement for displacement
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Post by benny »

i thought there was a bov that would do it.

release, snap shut, build up, release and so on

if not then i'll keep my psssssshhhh lol
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Post by Starion_Turbo »

keep your psssssshhhh
Powerplant: Chipped stock ECU, 2044cc, 8.5:1, head intake enlarged and polished, exhaust manifold enlarged,
Balance-shafts eliminated, Intercooled, TC06 @ 10psi, 2.5" high flow exhaust system and dump pipe.
enthuzed
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Post by enthuzed »

benny wrote:i thought there was a bov that would do it.

release, snap shut, build up, release and so on

if not then i'll keep my psssssshhhh lol
I just psssssshhhht my pants! :oops:
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
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slideboy200
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re

Post by slideboy200 »

i have a ssq hks bov on my car and it only seems to whistle...sounds good but not that cheap i think...
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Post by logik »

dose pipe!

then you need to do a vl turbo conversion
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dose pipe

Post by slideboy200 »

whats a dose pipe?
enthuzed
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Re: dose pipe

Post by enthuzed »

slideboy200 wrote:whats a dose pipe?
Somethin you use for a line of Coke. :wink:
Reduce fuel costs by 15-20% & cut emissions by 1/3rd...
Increase engine performance & prolong engine life...
How?
Click the website button below & watch the 3 minute video.
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