Ive been experimenting different lines for the vacuum hose...and my bov really doesnt seem to be sounding...you can tell its letting off air, and my w/g produces a fluttering type noise when shifting...
then i found this on a site and got quite confused

"Sound:

Extremely loud single flash of air w/ horn.

Sound can be lowered by removing horn.

Listen: (Idle Rev)

Listen: (Driving)

Notes: Keep away from the older series as they are slower to respond and have problems with flapper type AFM systems. This valve can be routed back into the intake stream but would require a custom welded flange."

so does that mean that i have to have a horn for the bov to work? that just doesnt make sense to me

anyway, heres the site..tell me what you think
http://www.alltrac.net/tuning/blowoffvalve.html


[Modified by NoPowerAllRice, 2:11 PM 9/8/2002]

 

i have this BOV. I didnt choose it however. When I ordered my DRAG kit from Import Parts, I was told I was getting an HKS SS but they sent me the Blitz. Im not fulllly satisfied with it, yet im not disappointed with it. I agree, it is kind of hard to hear...especially since Im only running around 6.5 psi. I think with more boost, it will be nicer. But I do have to admit it lets off a nice flutter once the car is above like 6000 rpms.

If you dont have the horn I dont think it will be too audible


also also- try playing around with the setting of the screw on the top...that helped me a lot!


[Modified by B18EG6, 3:59 PM 9/8/2002]

 

hmm...yeah its really not noticable...
does yours make a difference with the pressure screw in or out? somehow mine fell out, probabl due to rattle...you wouldnt happen to know the size of the screw would you??

also, just to add im running about .5 bar...which i think is about 7 psi...correct me, im not for sure

 

No correction needed
1 bar =14.7 psi
.5 bar= about 7 psi

 

close try 1.0bar closer to 14.5psi

 

Well Corky Bells says 1 Bar = 14.7 psi

 

what kind of bov's are you guys running?

 

i dont think the blitz one makes alot of noise unless your running higher boost.

 

higher boost...like over 1 bar, would that be high?

 

just curious, but how can u tell what bar u are running on the wastegate?? i have a greddy turbo w/ a built in wastegate and i'm tryin 2 figure it out..

 

http://dmoore.com/crx/turbo-tuning.htm

Check there. It shows about what the different levels and how to adjust w/ the internal WG like we have.

jB

BTW, do you have a boost guage? If not, get one so you know what's going on at least. Tightening will increase boost, loosening will decrease boost...


[Modified by PeloTudo AKA Gringo, 10:01 PM 9/8/2002]

 

so to adjust an internal you move the nut farther from the end...does that mean you would in turn do the same for an external w/g...move the nut farther down on the screw?

 

I have the Blitz BOV on mine at 7 PSI, and it's not as loud as I expected. I've heard it on cars pushing 15 pounds and it sounds a lot better.

BTW - 1 Bar = 14.5 PSI
1 Atmosphere = 14.7 PSI

 

is the lowest greddy goes 5.5 psi??

 

FYI: 1 bar is 14.503774 psi
People just round it off to 14.5 for simplicity.


[Modified by Zero Effect, 11:24 PM 9/8/2002]

 

whats a safe amount on an unsleeved block with low compression 9:1 pistons, forged rods and high temp rings?

 

did you guys adjust your b/o with the top screw?

 

i finally got mine working correctly....from what i gather the top screw is a pressure screw that determines how much pressure it takes to push the bov open...
it works good now...not a loud sound though...more of a suttle pssshhh sound