RED02Z

Wondering if anyone has a sound clip of the 50mm turbosmart blow off valve on their car they would share? Im getting ancy waiting on mine to get here and just wanna hear what its gonna sound like :d

CamminC5

Chicago1

youtube has some

RED02Z

Couldn't find any. Unless A&A uses the Tial 50mm, but I thought that was ECS. That's all I found. Was under the impression A&A used turbosmart or a vortech mondo bov.

Andy@A&ACorvette

It goes WHOOOOSH!

Here's a good video.

a/c man

Cute cuddly video but what the heck does is sound like compared to others ....

Mattie Num Nums

Heres mine.

Andy@A&ACorvette

I think most people don't realize that the valve is open most of the time. While a loud valve may sound awesome when shifting at 6,000, it may bother you when cruising, coasting, idling etc. as the valve is open during those conditions as well.
Keep in mind that a YSi with a 3" pulley will be much louder than an Si with a 3.8" pulley. It's all about airflow through the valve.
With a Tial you're stuck with what you have but with our valve you can set it up in one of four ways.

1 As normally supplied. A filter is fitted to the discharge to slightly muffle it. It's fairly loud but not obnoxious.

2 Same as 1 but with the filter removed. Louder yet, bordering on obnoxious. Probably about the same as a Tial.

3 With the optional trumpet installed. Considerably louder and definitely obnoxious.

4 With a hose attached to the discharge port running to a "Y" pipe. Two filters are attached to the ""Y". Splitting the flow slows each air column into two smaller ones with less volume and velocity. This tube can be run up behind the headlight to quiet it even more. I run the Y on my own car.

Mattie Num Nums

My car sounds like a pissed off street sweeper.

RED02Z

Ok, Andy I may be confused, but isn't the big bubba a 52mm? When I told josh I wanted the bigger BOV he said it was a 50mm. So do you guys have 3 different ones? Being the standard 38mm, 50mm, and 52mm?

Chicago1

Mine to I see people half a block away like wtf is that and stare. I tell people it's a big bag I'm dragging under the car lol. It's obnoxious but so I am I'm told

RED02Z

It's a little hard to hear it in the vid with the dyno, but from what I can tell it sounds pretty sweet Does it Flutter?

Mattie Num Nums

I have the bigger one on now. :P

It sounds like a whoosh no flutter. When driving it sounds like a vacuum cleaner on steroids.

RED02Z

No flutter? Well Damn.

Chicago1

here is my 50mm...this was just on 3psi. it's around 11 I make 668whp

a/c man

You should hear my YSI with a open big red procharger bov. Hahahaha. ..

Andy@A&ACorvette

The 52 and 50 are one and the same. I think the piston bore is 50 and the discharge port is 52 or vice versa.

Mattie Num Nums

I can imagine!!! ySI is only my wish list!!!

RED02Z

Andy@A&ACorvette

I measured one this morning. The actual cylinder bore, where the piston slides, is 52MM. The bore is slightly smaller below the piston so the piston has a positive stop as well as something for the O-ring to seal against.