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Bov

3R1K

By 3R1K,
in Engines & Forced Induction

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3R1K Veteran

3R1K

Posted
Posted

This is a weird issue for me.

I got HKS SSQV BOV, in my r34 it doesn't sound like what expected it sounded more like Blitz DD sound, there is no psh psh psh sound.

Then I swaped with my mate BOV, in his r33 series 1, it made psh psh psh sound like that sound that I want from SSQV.

Anyone have any idea what makes the different?

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siksII Grand Master

siksII

Posted
Posted

I dont actully have one, but from what i have read, the stepped sound you are after is not due to the type of BOV it is due to spring tension if you tighten your BOV up then it will make the sound you want, as the spring will not allow the piston to open up fully to let the air out in one go, so it will open/close a few times, making the fuulley sik psh psh psh noise :)

Also, on cars with AFM's like ours, i believe having the spring too tight(which it would be if its making the psh psh phs noise) causes stalling problems due to the air not smoothly passing by the AFM. So yeah your SSQ valve is set correctly to your car.

ps. If you dont want it, ill happily take it off your hands :(

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G0DF4Th3R Grand Master

G0DF4Th3R

Posted
Posted

im the mate with which he swapped BOVs with and the mounting locations are similar, in the stock BOV location

when we removed the BOV from the R34, we had to twist it so the spring became more loose in order to reach one of the bolts and i left it as such on my car, the 33.

i would say the difference in sound is now caused by the BOV not being as tight as before and it opens easier and louder than how it was on the 34..

sorry for not explaining this to you earlier Erik

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