When I drive just barely in vacuum, I can hear a hissing sound. I assume it's my bypass valve. Anybody else have this? I like it.
My greddy RS sounds like a whistle in high gear at low RPMs, no matter how many times i adjust it , its still there. It does the exact same thing on my friend SVT focus ...
Its kinda funny ... but i like it.
my bored t/b , race head and intake make a really loud hissing, i love it
Admiral Jedi wrote:When I drive just barely in vacuum, I can hear a hissing sound. I assume it's my bypass valve. Anybody else have this? I like it.
Yeah, I love that sound...I hear it when I slightly push on the gas a bit going from vacuum to boost... it's extremely satisfying
14.425 @ 97.833 mph stock + GMPP s/c on drag radials.
funny i cant hear mine, my damn intake hissses way to much
Phlatcav, stop with all the sexy sigs! Geez!
It's loudest right below 0, see if you can hear it...
I think what you are hearing is the boost getting pushed back past the valve as you are right on the cusp of it being fully closed.
and it is a good noise, it is just then that people realized they will soon be owned by a sleeper cavalier.
Marchi1 wrote:I think what you are hearing is the boost getting pushed back past the valve as you are right on the cusp of it being fully closed.
and it is a good noise, it is just then that people realized they will soon be owned by a sleeper cavalier.
It's my way of doing things.
That sound is the best, happens when I slightly press the gas
i love that sound. its great, especially when i go cruising through campus. everyone just stops and stares.
would a HKS SSQV BOV have that sound? thinking of getting one. does anyone have a sound clip of one on there cav?
Import Killer wrote:would a HKS SSQV BOV have that sound? thinking of getting one. does anyone have a sound clip of one on there cav?
we aren't talking about a turbo bov sound, that's the sound of a supercharger's bypass valve...
14.425 @ 97.833 mph stock + GMPP s/c on drag radials.
its not the bypass valve making the noise
its the s/c making the noise , its the air pressure from the s/c getting pushed past the blade that the boost bypass is hooked up to
mine usually whistles from 5" to just before 0" of vacuum , then the tone changes once its in boost, under 3psi , then once wide open it screams like a banshee
uh... yeah what he said
14.425 @ 97.833 mph stock + GMPP s/c on drag radials.
i want to hear this noise
any sound clips?
I'll see what I can do tomorrow for a sound clip.
Admiral Jedi wrote:I'll see what I can do tomorrow for a sound clip.
I tried getting some video of the bypass valve whistling, but it wouldn't work tonight. Dunno why, it was cold, maybe that had something to do with it.
Have somebody you know walk down a hallway and softly whistle, that's what it sounds like.
[quote=97trd(???™)]its not the bypass valve making the noise
its the s/c making the noise , its the air pressure from the s/c getting pushed past the blade that the boost bypass is hooked up to
mine usually whistles from 5" to just before 0" of vacuum , then the tone changes once its in boost, under 3psi , then once wide open it screams like a banshee
Good discription Eric. At first I thought it was my intake whistling. It is good to know that its the blower. It makes sense now that i think about it. good sounds indeed. Whistle, little bit louder of a whistle, then the full scream. I love it.
BTW i know this post is old. I'm trolling tonight. lol
Mine got louder with the LS1 TB.....
its an old concept. time for something new to take the reigns. - Z yaaaa
Ahhh I love being supercharged with a roots. Everyone just stops and stares.
Hey Tinkles, how is that LS1 TB treating ya? Did you need to reprogram the computer?
Ahhh I can't wait. Supercharger is sitting in the house till I can get a tuner program...and ls1 tb
"It's called reading! Top to bottom, left to right... a group of words together is called a sentence. Take Tylenol for any headaches... Midol for any cramps."
Jesus Jacobo wrote:Hey Tinkles, how is that LS1 TB treating ya? Did you need to reprogram the computer?
It's great. The only "issue" is that my idle is at 1000-1100 instead of 900rpms. Other than that there are no driveablity issues. We did reprogram the computer because i also installed a 2.9" pulley and 63# injectors.
its an old concept. time for something new to take the reigns. - Z yaaaa
wow! this thread is almost 5 years old.
I hear it every day!
Supercharged 2002 Cavalier Z24
J-Body / GM TUNER Bash Veteran
