Has anyone heard two blow off valves on a car instead of one?

 

Why would you want that? Seems like just more money, everyone has been fine with just one.

 

That Korean guy on NT.

 

changes the sound to more unique

 

if your running over 40 psi it a good idea to use 2 but until them...no good reason to

 

yeah, over 40 psi, you're prolly full race by then, so it'd help. other than that, two blow off valves, are necessary in twin turbo applications, such as a supra or so. if you want a twin turbo for the tib tho, its most likely not going to get you huge gains. and if over 40psi of boost, you can get a bigger blow off valve, its just more efficient

 

Well what i was wanting to aim for was sound. Would the spring still open for 2 BOV if I y split the vac line at say 10-15 psi?

 

it would most likely still open, but i think you'd just have the same sound, because if they are goin off at for example 50db@1m, and its times two, it won't make it 100db@1m. so really, it wouldn't do anything but impress people who don't know much about turbos. it'd be good, IMO only if you had twin turbos, and then had each BOV specified for each turbo.

 

The Greddy TYPE RS and the TYPE s, have these sounds I like.

When I ran the TYPE S it had a loud wistle and the type RS had a woosh sound to it, I liked how they both sounded.

 

Give a look at the BOV's on 3sxperformance.com The're all bout 3000GT's and Stealths but they make their own equip and a BOV is universal. Check out the Type-H-RFL and Type H-34 both have sound clips (open hood, driveby and incar - 1 clip) just ignore the engine noise.
Hmmm, I think I'm giving away a secret 02.gif, but it's for our family so ok...Just I have dibs on the custom port and cliped 368 turbo tongue.gif