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Which one should i get?
how do i install it? |
Get whichever one you want, but I recommend the HKS SSQ. It is a pull type instead of a push type. Helps prevent leaks. Check out my website I have a few listed. If you get the RX-7 specific kit, you just take off the stock one and put the new on in the same spot.
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Originally Posted by MAximus9t' post='824876' date='Jun 18 2006, 08:48 AM
Which one should i get? how do i install it? I think stock ones are fine.. My choice is Tial.. They have the largest opening of all. |
agreed. Stock is more than fine. If you must go with an aftermarket, get the Tial.
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you should just use stock....
and if you want to have a louder bov, then just vent the bov to the atmosphere rather than the intake box, its louder than some aftermarket bovs out there |
so just disconnect the inchor so diameter hose running from the bovs(are tan right)to the airbox
block off the hose running to the airbox |
i have an apexi BOV and i dont want it anymore. i just got a BOV for the sound, no real need for an after market one. the apexi is too loud, i want one that is more high pitched, and more of a whistle. mine is more of a koosh. if you want the apexi one i have PM me. i just bought it about a month ago and the car got about a week of use with it installed. then i took it off and went back to stock. let me know man. https://www.nopistons.com/forums/pub...DIR#>/cool.png
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Yes, if you like/want the sound, just disconnect the hose from the stock BOV and let it vent to atmosphere. Sounds as well or better than many aftermarkets, it's reliable, flows very well and it didn't cost you anything. Be sure to plug the open end of the hose or remove the hose at the airbox and then plug the airbox.
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both unplugg both bovs
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they're not both BOVs, but yes, you can disconnect both from the airbox.
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just unplug the bov, the other one will make a hissing sound on partial throttle ..... can get really annoying really fast.
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which is which
is the bov closest to the airbox or the one closest to the turbos? |
the one with the hose going to the front half/center of the y-pipe is the BOV.
the other ties into the y-pipe slightly behind that if my memory is correct. |
I have the 2-Chamber Apexi BOV that I got from "herblenny". I like it just fine. Nice WHOOOOOOSH!!
Also, I just used a "T" that I bought from Autozone and tied it straight into the stock BOV...real big WHOOOOOSH!! https://www.nopistons.com/forums/pub...DIR#>/wink.png |
????
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What's the "???" about?
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another vote for the stocker..
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Originally Posted by hus' post='825940' date='Jun 24 2006, 08:06 PM
What's the "???" about? |
two different hoses with to BOV looking things attached one is closer to the turbos then one is closer to the airbox which is the bov?
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Originally Posted by MAximus9t' post='826026' date='Jun 25 2006, 01:19 PM
two different hoses with to BOV looking things attached one is closer to the turbos then one is closer to the airbox which is the bov? |
ok that makes more sense
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if its not broken dont fix it.....if you get a new bov. have it mounted directly to the intercooler piping...theres no reason to upgrade from stock until you up the boost anyway...
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Originally Posted by RotaryRevolution' post='826032' date='Jun 25 2006, 11:45 AM
if its not broken dont fix it.....if you get a new bov. have it mounted directly to the intercooler piping...theres no reason to upgrade from stock until you up the boost anyway... true unless you really like the sound of the bov https://www.nopistons.com/forums/pub...DIR#>/cool.png |
Originally Posted by Signal 2' post='826005' date='Jun 25 2006, 10:02 AM
I think he's having a hard time visualizing two BOVs in series. I guess I am too. Not that big a deal actually. Just cut the hose going from the UIM to the stock BOV and insert a "T". On the bottom end of the "T" connect your hose running off your aftermarket BOV. I have the Apexi 2-Chamber BOV and it's mounted to my Greddy Elbow. Now I have a huge WHOOOSH on both sides of the car https://www.nopistons.com/forums/pub...IR#>/smile.png |
max i have an apexi 2 chamber blow off valve as well. if you want it, im selling it. let me know. its is a great bov, i just dont have any real use for one. https://www.nopistons.com/forums/pub...1047683664.gif
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How much boost can the standard bov handle?
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sorry to steal a thread but I put a ssqv on the cold side ic piping right before the intake manifold, then i ran a 1'' piece of hose connecting the ports on the uim the used to feed the bypass valves i couldent get it to stop compressor surging until i replaced the bypass valves while the ssqv was still on? can u run a bov without the bypass valves? what if the boost map has big fluctuations in it? are bov more tempermental to a ugly boost map that ran 12 pounds on bypass vales ( its been cleaned up since i first tried the swap)
performance mods so far 3'' turbo back w\ greddy ti cb 2 1\2 '' intakes aem ems tuned to 14 psi at 11.3 a\f with stock twins |
Originally Posted by JBs93FD' post='829254' date='Jul 19 2006, 08:17 PM
sorry to steal a thread but I put a ssqv on the cold side ic piping right before the intake manifold, then i ran a 1'' piece of hose connecting the ports on the uim the used to feed the bypass valves i couldent get it to stop compressor surging until i replaced the bypass valves while the ssqv was still on? can u run a bov without the bypass valves? what if the boost map has big fluctuations in it? are bov more tempermental to a ugly boost map that ran 12 pounds on bypass vales ( its been cleaned up since i first tried the swap) performance mods so far 3'' turbo back w\ greddy ti cb 2 1\2 '' intakes aem ems tuned to 14 psi at 11.3 a\f with stock twins Let me explain a little about BOVs.. and if I'm wrong about some parts, please correct me.. Stock BOV in most cases better than aftermarket bovs. I think there are many misconception about noise and functionality of BOVs. If you aren't running super high boost, just stick with stock ones. I believe you can run 16-17lbs of boost with stockers.. but dont quote me.. you could also check it by putting pressure to the stock BOV and see at what PSI it will start relieving pressure... If you are running high boost, I like the design of Tial BOVs. Also you can change the spring rates on Tial BOVs for high boost application.. Which most aftermarket ones you can't. Far as JBs93FD's post about HKS SSQV.. I think those BOVs are good for making noises. Like the stock ones, you need to run a vac lines to the manifold. It needs negative pressure from the manifold to open up the BOV.,, and thats the purpose of BOVs.. It has nothing to do with your ECU map (boost map). When the turbo spins to make boost, and when you throttle closes and you start creating vac. in your manifold, you don't want back pressure to slow down your turbo. This is bad for the turbo and hence you want to relieve the pressure. Louder the BOV, the slower it tends to relieve pressure. Hope this clearify some for you. |
Originally Posted by herblenny' post='829290' date='Jul 20 2006, 04:43 AM
i'm quite confused with this post.. Let me explain a little about BOVs.. and if I'm wrong about some parts, please correct me.. Stock BOV in most cases better than aftermarket bovs. I think there are many misconception about noise and functionality of BOVs. If you aren't running super high boost, just stick with stock ones. I believe you can run 16-17lbs of boost with stockers.. but dont quote me.. you could also check it by putting pressure to the stock BOV and see at what PSI it will start relieving pressure... If you are running high boost, I like the design of Tial BOVs. Also you can change the spring rates on Tial BOVs for high boost application.. Which most aftermarket ones you can't. Far as JBs93FD's post about HKS SSQV.. I think those BOVs are good for making noises. Like the stock ones, you need to run a vac lines to the manifold. It needs negative pressure from the manifold to open up the BOV.,, and thats the purpose of BOVs.. It has nothing to do with your ECU map (boost map). When the turbo spins to make boost, and when you throttle closes and you start creating vac. in your manifold, you don't want back pressure to slow down your turbo. This is bad for the turbo and hence you want to relieve the pressure. Louder the BOV, the slower it tends to relieve pressure. Hope this clearify some for you. I beg to differ but i could be wrong hks is the only company who makes the pull type valves, the ssqv has a duel diaphram which under little amounts of boost (cruising) only 1 diaphram opens and lets out yhe least ammount of air nesesary which is why its so loud, when under full boost both diaphrams open. a bov valve vs. a bpv, bov dont leak while building boost unlike bpv which makes spooling quicker. on the boost map issue the map controls wastegate duty, bpv leaks as i was saying there for the map has to be tuned for the loss of pressue, and like i was saying the map had more than 30 different spikes but held boost on the bpv ive since fixed that to a flat platue for the firt turbo an incline in duty around 4500 and another flat platue. I was just curious if the bov was hiting those spots in the map? |
Originally Posted by JBs93FD' post='829533' date='Jul 21 2006, 06:01 PM
I beg to differ but i could be wrong hks is the only company who makes the pull type valves, the ssqv has a duel diaphram which under little amounts of boost (cruising) only 1 diaphram opens and lets out yhe least ammount of air nesesary which is why its so loud, when under full boost both diaphrams open. a bov valve vs. a bpv, bov dont leak while building boost unlike bpv which makes spooling quicker. on the boost map issue the map controls wastegate duty, bpv leaks as i was saying there for the map has to be tuned for the loss of pressue, and like i was saying the map had more than 30 different spikes but held boost on the bpv ive since fixed that to a flat platue for the firt turbo an incline in duty around 4500 and another flat platue. I was just curious if the bov was hiting those spots in the map? I took out the bpv's and the cars boost fine, well alright i cant get the first turbo to boost more than 6 psi 14 -15 on the second is great though |
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