RaW Z06

I have a few questions for those of you familiar with the different BOV's. I am currently running the Turbosmart BOV that came with my A&A V3 Si kit. What is the difference between the Turbomart Valve and others like the Tial which is used on the ECS kits? What BOV do most forum members use and why??? Which BOV has the best sound? How do I know when I have my BOV adjusted correctly? If anyone has anything else to add concerning BOV's, jump in and give us your thoughts on the subject. I am wanting to learn as much as I can about the different models and options available. Thanks

MVP'S ZO6

The Bypass valve is used to help prevent compressor surge. Compressor surge is bad and will destroy a blower or a turbo.

There's all sorts of $hit on the Internet on this very topic. If you want a noise maker then remove the filter thats on your A&A turbosmart valve. It will be louder. the Tial Q 50 mm valve or procharger big red are popular choices for upgrades to the A&A turbosmart valve.

RaW Z06

I have the Turbosmart fully recirculating Plumb Back valve. Will this valve ever open while the system is in a vacuum? Since the valve has a filter and is not being used for plumb back, Can air be sucked through the filter opening or is the filter opening a one way/exit only port??? I may be interested in removing the filter to see if I like the louder sound if I know for sure that there is no risk of unfiltered air entering the system through the BOV with the filter removed.

Is there anyone out there currently running their Turbosmart Plumb Back BOV without the filter supplied by A&A?

MVP'S ZO6

http://www.aacorvette.com/superchargers/

hope this helps

RaW Z06

"We also include a filter to quiet down the valve"

Don't know how I missed that.....

Thanks MVP

Blitzkrieg

I have a Tial Q and like it! It is a little loud at times but helps to warn off pesky Mustangs, Chargers and Camaros!

MVP'S ZO6

just made the switch myself to the tial Q thanks to ECS.

no problem RaW ZO6 thats what we are here for.

BLOWNBLUEZ06

Not only do we need a bypass valve for compressor surge prevention, but it also completely bypasses the supercharger and draws ambient air through the intercooler when not in boost, thus keeping the intercooler from getting heat soaked. This should increase the efficiency of the system as well.

JT FRC 00

I removed my filter on my turbosmart BOV awhile back just to see if it was going to make a difference on the sound. Cruising around on low boost it might have been a little louder but not much though, during WOT pulls on the dyno it was much louder but chances are I wouldn't hear it anyways while driving. It's a great BOV by all means, works great for the stealth approach. But if your wanting something much louder than a swap is needed to a Tial or Big Red I believe.

RaW Z06

So, in normal driving conditions when not in boost, does ambiant air get sucked into the valve? I'm not sure I understand. How does it bypass the supercharger and draw ambient air through the intercooler?

5 Liter Eater

Mmmm I have to disagree Bret. A BOV in a centrifugal setup should never suck air in. It should always be blowing out. It should be open until just before passing atmospheric pressure. Open at idle, open in decel, open at cruise, and all the time it's blowing out because the blower is trying to move more air than the engine can injest.

Milan

^^ That's what mine does

BLOWNBLUEZ06

You know I've never gotten to the valve to see which direction the air was moving at idle or any other engine speed. I stand corrected.

MVP'S ZO6

So it's safe to say that as A&A suggest the filter is there purely to quiet the valve down?

bullitt4110

It is never open unless its pushing air out.

Yes, on both of my previous cars I never ran the filter. But if not running the filter make sure its not pointed straight up, if the car sits for long periods of time after being washed or if it sits in the rain for long periods of time water can get in there and corrode the BOV and it will get stuck shut. Obviously extreme case, but Ive seen it happen once. Pointed sideways its not an issue.

RaW Z06

That's good informtion to know......

I will remove the filter, turn the valve sideways and see if I like the louder sound.

Much appreciated

SuperSteve04Z

Did anyone find this in their BOV filter? Hope you can see what Im talking about, pic might be a little small.

Milan

lol @ 768x1024 pic being "small"

RaW Z06

Yuck!

Could it be small pieces of rubber tubing that connects the supercharger to the intercooler? The inside of the Rubber tubing is the same orange color........

SuperSteve04Z

I believe the debris has to come from before the BOV. I have to wait a while to inspect further but Im hoping these did not come from the coupler at the inlet of the S/C, go throught the S/C and end up in the filter.