i jus wanted to know your opinions of whats the best blow off valve to get?

 

Just to save everyone some time....

the stock BOV is fine for the stock turbos...if you want it louder you can vent it (take off the 1 inch hose from the BOV to the airbox)

There is no best blow off valve unless you are running something like 30 psi off a large single set up. The only reason for getting one is the sound, and people will tell you to get the HKS SSQV.

Also I know there are a ton of posts about this...try looking some of them up with the search buttons I know you'll find what you're lookin for

 

just remember that a bov's main function is pressure relief...they were designed to reduce compressor surge...the only reason you should consider upgrading the stock unit is if you are experiencing surge(shuddering sound)...or if you just want a different sound.....

 

I have the HKS SS BOV and love it....... you can adjust the sound and there are 2 other diaphragms that you can buy that will change the sound......

HKS states that their BOV is a push instead of a pull type.... Can someone elaborate that since I have my own opinions.......

 

try the Greddy Type R nice sound

 

I'll be running the HKS SSQV as well. I have a couple of friends running them on different cars at anywhere from 14psi up to 28psi and they work like a dream. But I also agree that if you still have the stock twins then there is no need to spend the money unless you want it to sound different. Just my .02

 

now when you vent the bov then doesnt that make your idle rough? or some sort of dmg?

 

No, and no...

 

are you sure...? when my friend got his DSM. gsx.. it was vented out.. then when we vented it back into the air box it idle'd alot smoother

 

The FD is not a DSM.. Vented into the airbox or to atmosphere has nothing to do with the idle. It only has to do with the loudness of the BOV. It's just vented into the airbox to keep the noise down.

 

I have mine vented, it sounds nice...But eventually i would like to purchase an aftermarket Bov, especially when i go to get an intake and intercooler.

 

Don't waste your money on anything but a TiAL. I just got one and it's a work of art, particularly compared to the other overpriced crap.

 

the RX7 doesn't idle like crap when venting to atmospher because it has a different sensor i believe (MAF?). Other cars i think it will matter, is that right?

 

I agree with adax. The Tial BOV quality is second to none. Much better than any HKS or Greddy I've seen. Plus it costs about $70 less than the HKS SSQV.

 

I bought the Apexi BOV and it sounds just like the stock vented - I wan't sure if the stock would be able to handle high boost on upgraded twins so I bought aftermarket - it was inexpensive and works fine.

 

I'd either go stock or Tial.

You REALLY dont need to upgrade, vent them first, they sounds great.

I'm running non seq with upgraded turbos and high boost and just using the 2 stock BOV's. Its pleanty of BOV and they dont leak a drop. I checked them on the dyno just to make sure they were not leaking. I was running large upgraded stock twins at 17psi.

They are fine just use them and vent they for some extra sound, I think they sound great!!!

STEPHEN

 

What do the Tial BOV's sound like?? and how much are they? I've herad of them before, and was sort of interested.

 

nope it does that on DSMs because the BOV isn't designed to vent out. The FDs BOV vents out into the stock air box and you will not hear it. However if you put on an open intake it will vent out into the intake and will be able to hear it. Also, with its design you can remove the small tube that connects the BOV to the air box and cap the air box for the same effect without causing any of those symptoms.

 

i have the hks ssq bov.. love it.. but i wouldn't mind tryin out the tial

 

so it will idle rough when i vent the bov?

 

NO.. it uses a MAP sensor not a MAF sensor (mass air flow).. MAF measures the intake air just past the filter, so anything venting out of the system past that can cause idle problems. The FD measures intake air via the manifold past the throttle plates, the bov is before that in the system and does not affect the idle.

Matt

 

What is the Tial BOV?

anyone got links/pics?

How is it better then the HKS SS?

and what does it sound like?

 

Well damn skippy Stephen, I thought I'd have to upgrade along with the Top Secrets . If I can keep the stockers on there then they'll stay, especially b/c I love the way they sound.

 

i vote for the HKS too

where can i buy these diaphrams? ive never heard of them.