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Old 08-22-2003, 12:02 AM   #1
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Default Help with an HKS SSQ BOV

I got a HKS SSQ BOV last month. Since then my car seems to backfire a lot. It also blows off all the time. Sometimes its kind of annoying. I know there is an adjustment on the BOV but what does that adjustment do? It would be nice if it could adjust the sensitivity a little. I know that several of you are going to say to read the book that came with the BOV. I tried and the entire book, all the information in the box, and almost every word on the box is in Japanese. I got it from eBay and it appears to be directly from Japan. Thanks in advance.
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Old 08-22-2003, 12:47 AM   #2
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Use the stock BOV. Works perfectly
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Old 08-22-2003, 04:21 AM   #3
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I talked to HKS and they said that you should never adjust that screw unless the BOV is leaking at idle. If it remains closed at idle, you shouldn't touch the screw. My HKS SSQV works fine and doesn't seem to backfire. It does go off all the time though. Under any boost it will make noise. It seems that some cars have probs with an atmospheric bov and some don't.
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Old 08-22-2003, 04:38 AM   #4
dan avoN7
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everything that your describing is normal. The reason for the back firing is because you have a strait threw muffler and when you shift with a 100% atmo. bov you run rich in that short little period. This will cause the backfire. Sometimes it's a little pop and sometimes a big bang. Just depends how the MAF sensor reads the air sinec it's not being reciculated like the stock bov did. Also if you dont want it going off all the time just when your about to shift let off the throttle a little. If you dont like whats happening just sell your bov and go back to stock or buy the recirculation kit for the hks bov.
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Old 09-03-2004, 10:44 PM   #5
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I have had my SSQV for a while and have had no problems. A friend told me it is suppossed to shutter when it blows off, so adjusted the screw both ways and did not have any changes in performance at all. Weird eh.........The more I loosened it, the more the sharp whistle went away, thats all I noticed.
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Old 09-04-2004, 05:43 AM   #6
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if you think it's blowing off too much, tighten it a little. don't tighten it TOO much because you really don't want any chance of compressor surge.

i took mine off for now. why? no real reason, just felt like it. i may sell it, who knows
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Old 09-04-2004, 10:45 AM   #7
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could it be the springs for the valve or no
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Old 09-04-2004, 11:26 AM   #8
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The backfiring is normal for an atmospheric BOV on our cars.

However the HKS is still crap.
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Old 09-12-2004, 01:47 PM   #9
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i have this bov also purchased it yesterday and i love it!!!, i always loved the sound but ne way , i do have little backfire, and i do like that it goes off alittle more than usual but my only problem is that i cant boost at 1 bar, it sits like at .8 is there a reason, anybody experience this too?
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