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Old Jul 10, 2007 | 07:39 AM
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Default Blow of valve questions

Got a few bov questions..

I have been looking into the Greddy RS and HKS SSQV valvles, and I also came across the synapse synchronic bov. I have seen alot of videos on the synchronic on you tube, but havent seen anyone of here running one of these.

1) Does anyone own one and can comment on the performance and sound of it? Any leak issues/comp surge? How does it sound at your boost levels?

2) I am still trying to find some decent sound clips of the Greddy RS on a 350z with a decent amount of boost. What does the Greddy RS Bov sound liks exactly? Does it have more of a wistle/chirp sound like the HKS SSQV? or is more of an air surge sound like the Blitz DD, Tial, RFL Etc? I have read it has a similar laser type sound like the old type S...any comments on this or vids would be appreciated!

3) I know what the HKS sounds like, but how does it compare to the other two as far as performance/comp surge/leaks?

4) Is the Greddy RS or HKS SSQV louder?

5) Also, at what power point is it neccessary to run 2 bov's?
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Old Jul 10, 2007 | 08:05 AM
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Hit up Tim from Speed Force Racing. He is running two Synapse BOVs and is a dealer for them.
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Old Jul 10, 2007 | 11:43 AM
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thanks mia, have you heard his setup before..

Any idea how loud it is compared to the other two?
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Old Jul 10, 2007 | 11:44 AM
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my SSQV was loud.. till i got my Greddy Evo TT.. now i can hardly hear it
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Old Jul 10, 2007 | 11:44 AM
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the hks is waaaayyy louder than the greddy...
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Old Jul 10, 2007 | 02:17 PM
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Originally Posted by dank311
thanks mia, have you heard his setup before..

Any idea how loud it is compared to the other two?
It sounds pretty good. SpeedForce Racing has a video of the car with the BOVs on their site. www.speedforceracing.com
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Old Jul 10, 2007 | 02:38 PM
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Originally Posted by eltness350
the hks is waaaayyy louder than the greddy...
What does the Greddy sound like compared to the HKS? Is it more of an air release noise, or does it have any kind of wistle/chirp/laser type noise to it. The only ones that I have heard that dont sound like straight air release are the HKS SSQV and the Greddy type S.

I might just get the HKS and get the insert so I can have both sounds and switch back and forth.
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Old Jul 10, 2007 | 02:47 PM
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subscribing
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Old Jul 10, 2007 | 03:26 PM
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the Valve of the Blow can be cool.

hks sound cool imo.,
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Old Jul 10, 2007 | 03:31 PM
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http://www.blowoffvalves.com/

sound clips of greddy/hks.
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Old Jul 10, 2007 | 03:36 PM
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LMAO@laser type sound.

The GReddy RS (I've only heard one in person) just sounds like air. The HKS should be fine for lower boost levels (like under 20psi)... anything past that I wouldn't run anything other than a TiAL. Hell, I don't even like the HKS for anything over 15psi.

No experience with the Synapse valve.
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Old Jul 10, 2007 | 03:38 PM
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Originally Posted by Chebosto
http://www.blowoffvalves.com/

sound clips of greddy/hks.
lol, sounds like a flat tire.
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Old Jul 10, 2007 | 04:21 PM
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I run dual Greddy RS BOVs that I modded to open up faster...which in turn makes them louder at low boost......
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Old Jul 10, 2007 | 04:53 PM
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4) I would say HKS
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Old Jul 10, 2007 | 05:28 PM
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Originally Posted by Chebosto
http://www.blowoffvalves.com/

sound clips of greddy/hks.
Ive seen that page along time ago, I cant find any clips of the RS on there though..It seems they have updated it with the RS info since I have last seen that site. Thanks
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Old Jul 10, 2007 | 05:29 PM
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Originally Posted by QuadCam
I run dual Greddy RS BOVs that I modded to open up faster...which in turn makes them louder at low boost......
Do they just make an air sound...any video clips?
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Old Jul 10, 2007 | 06:06 PM
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http://www.youtube.com/watch?v=PxDmIkqR4M0

What BOV is this?
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Old Jul 10, 2007 | 06:59 PM
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i am in love with the sound of gas bein released that is why i decided to get the greddy rs
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Old Jul 10, 2007 | 08:09 PM
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Originally Posted by dank311
Not sure, but the Turbonetics Raptor sounds the same as that.
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Old Jul 10, 2007 | 08:38 PM
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Originally Posted by dank311
thats what im trying to find out...............sounds so perfect.


At best ill def be finding out this weekend at the D1 event in vegas
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