Supercharger BOV?

[SpeedSI]

I know this may sound stupid to some of yall but i know there are others that wanna know. Alright I plan on gettin the supercharger for my FA5 but I love that blow off valve sound. Although I know the BOV will serve no purpose I still want it. How would i go about doing the install? Could I just replace the bypass valve with the BOV since basically do the same thing?

[skinsfn36]

well, i'll give you what i think might be the right info from what ive read. i believe the only way you can achieve this is with the hopefully "upcoming" kraftworks supercharger because it works more like a turbo. you cannot have a BOv with the JR or comptech SC...as far as i know

[96 SVT]

Originally Posted by SpeedSI

I know this may sound stupid to some of yall but i know there are others that wanna know. Alright I plan on gettin the supercharger for my FA5 but I love that blow off valve sound. Although I know the BOV will serve no purpose I still want it. How would i go about doing the install? Could I just replace the bypass valve with the BOV since basically do the same thing?

well, the only thing i can think of would be get a centrifugal supercharger (vortech, procharger, etc) which whines like a turbo, gives good power and may have a setup or purpose for a BOV (they may have a wastegate set up for that, i really dont know). beyond that, your only real options are:

a. get a turbo
b. get a turbo
c. get a turbo
d. get a turbo
e. get a fake BOV that does nothing but make noise

[vipertag313]

Originally Posted by 96 SVT

e. get a fake BOV that does nothing but make noise

ricerphobia ftw
+ with option E. you can also get that whistle turbo spool clip for your exhaust

[96 SVT]

like this one?

my four dollar exhuast- Video

[JRM_FG2]

why would you want a BOV sounds when you can hear that sexy WHINE!!!! lol

[SpeedSI]

^Haha. I dont think I'd even be able to hear my Skunk2 with those things in the exhaust

[atlprofessor]

The centrifical S/C uses a bypass valve instead of a BOV. This is basically always open when your just crusin. When u go WOT it closes, yielding boost. This is how it works on my buddied vortec S/C'ed z car. Someone correct me if I'm wrong.

[greysquirrel]

a bypass valve on a supercharger is nothing like a bov the bypass valve opens and closes the intake on the supercharger so that the car is not building boost at closed throttle, it opens and closes a dome. so that at closed and part throttle you car acts as though it is na. what it does is it gets sucked open boom you have boost.
a blow off valve is the exact opposite it keeps the motor from boost surge when the throttle is closed and the turbo is at a high rpm. so when you shift the throttle closes and the turbo is still spooling it sucks it open and the noise you hear is the air being spent from the turbo.

i don't know about kraftworks but on my jackson kit (old style roots blower not the new style centrifical) on the b16 i had, the bypass valve was a plate in between my manifold and the roots, so there would be no way to mount it because the valve was sandwiched.
vortec blowers for b-series has a blowoff valve on it but that is because it is centrifical which is really close to being turbo but instead of being exhaust driven it is belt driven. check into them, i don't know if they do k-series motors.

[greysquirrel]

Originally Posted by atlprofessor

The centrifical S/C uses a bypass valve instead of a BOV. This is basically always open when your just crusin. When u go WOT it closes, yielding boost. This is how it works on my buddied vortec S/C'ed z car. Someone correct me if I'm wrong.

doesn't vortec use a bov? or is that only on the intercooled ones? also i would much rather hear the whine over a bov. i miss it alot but i might do it again.

[greysquirrel]

CarDomain.com Image

theres one on this car it has a vortech

[quickfa5si]

Kraftwerks Home

There Si kit will come with a bov. Was talkin to oscar earlier.

[vipertag313]

Originally Posted by 96 SVT

like this one?

my four dollar exhuast- Video

haha yes classic.
i was thinking more on the lines of a metal piece though, rather then noticeable whistle straws
YouTube - Fake Turbo

[Highrev1]

Venting a Bypass valve tot he atmospher is not a good idea...When you recirculate the boosted pressure back into the inlet it allows for faster "recovery" of boost with the supercharger...You would in theory be hurting performance by venting it to the atmosphere.

Originally Posted by quickfa5si

There Si kit will come with a bov. Was talkin to oscar earlier.

Probably a bypass valve that recirculates...NOT to the Atmosphere..But different than the ones on the Positive displacment kits...It won't be a butterfly style one but a membrane style one as you can use those on Centrifugal charger.

[db8typer]

^I agree. When I had an EVO IX, I had a HKS BOV for about a week and totally hated it. The car ran like crap and bogged down. Once I re-installed the factory diverter valve/ bypass valve the car ran so much better.

[Highrev1]

Originally Posted by db8typer

^I agree. When I had an EVO IX, I had a HKS BOV for about a week and totally hated it. The car ran like crap and bogged down. Once I re-installed the factory diverter valve/ bypass valve the car ran so much better.

Factory was a recirculated design? I think......You were bleeding off metered air from the MAF therefore causing the bogging and and crap running.

[db8typer]

^ Yes sir. I was just trying to make a general example. I know that S/C's and turbo's are quite different but I just thought it would help.

[greysquirrel]

yeah a recirculating blow off valve wont be as loud but it allows the air to be used by the motor allowing for faster pickup too.