HomemadeTurbo - DIY Turbo Forum - HKS SSQV Fluttering

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soob	10-30-2006 10:17 PM

HKS SSQV Fluttering

I know this bov is supposed to flutter under low boost but it seems to be doing it under high boost. Not getting the high pitched chirp at all. Anyone know how to fix this or is it a Compression surge because the bov isnt releasing quick enough. Let me know please ;)

alpalwal

10-30-2006 10:18 PM

Re: HKS SSQV Fluttering

mine is recirculated and it flutters under like 10lbs of boost... so if it's recirc'd that could be it.

check and make sure the vaccuum line is not kinked or anything too.

soob	10-30-2006 10:20 PM

Re: HKS SSQV Fluttering

I think my vacuum line is split with the boost gauge not 100% sure havent looked in a while. It's not recirculated thugh.

soob	10-31-2006 11:32 AM

Re: HKS SSQV Fluttering

Here is a video of the actual sound:

http://s109.photobucket.com/albums/n...tegra_dyno.flv

0b00st0

10-31-2006 11:56 AM

Re: HKS SSQV Fluttering

Quote:

Originally Posted by soob

Here is a video of the actual sound:

http://s109.photobucket.com/albums/n...tegra_dyno.flv

YA compressor surge from the BOV not opening or not opening enough.

Turdbo

10-31-2006 11:59 AM

Re: HKS SSQV Fluttering

try using a different VAC source..maybe a T from the FPR..it constantly in VAC

ryan89crx

10-31-2006 12:08 PM

Re: HKS SSQV Fluttering

get a better vac source

soob	10-31-2006 01:03 PM

Re: HKS SSQV Fluttering

Quote:

Originally Posted by ryan89crx

get a better vac source

How easy is it to hook it up to another source? such as the brake booster?

ryan89crx

10-31-2006 01:18 PM

Re: HKS SSQV Fluttering

Quote:

Originally Posted by soob

How easy is it to hook it up to another source? such as the brake booster?

either get a GE vac mani, or just a t fitting

soob	10-31-2006 01:20 PM

Re: HKS SSQV Fluttering

Ok I will give it a shot, hope fully i dont ---- anyhting up hehe. I'll let you guys know how it goes.

soob	11-01-2006 05:22 PM

Re: HKS SSQV Fluttering

Changed the vac source to the brake booster and still got nothing. Took thhe bov appart and inspected and everything seemed to be in working condition.

boosted95EG

11-02-2006 09:36 PM

Re: HKS SSQV Fluttering

when the car is at idle the bov should be open ,check if it opens.

0b00st0

11-03-2006 02:10 AM

Re: HKS SSQV Fluttering

Quote:

Originally Posted by boosted95EG

when the car is at idle the bov should be open ,check if it opens.

Ah not true for all BOVs. Usually only ones designed for superchargers stay open at idle.

drunkinmaster1

11-03-2006 08:33 AM

Re: HKS SSQV Fluttering

that flutter is normal for the ssqv. it is not compressor surge. ssqv is a duel stage bov hence the sequential in the name. lower boost levels will flutter like a nasty queef. higher boost levels will give you the second stage "CHIRP!!''. my ssqv sounds exactly like that video on lower boost levels.
heres a video of what compressor surge really sounds like.
http://www.slammdsol.com/tony1.wmv

elviec

11-03-2006 04:38 PM

Re: HKS SSQV Fluttering

Quote:

Originally Posted by MADMAX

Ah not true for all BOVs. Usually only ones designed for superchargers stay open at idle.

diaphram bovs are the ones that are usually open

piston ones should stay closed.

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