Is It True??
Kyle, mine vents all the time too, but only on the freeway or spirited driving around town. It makes the annoying chatter type or you can say chirping if you want but its blowing off the excess pressure in the IC tubing at these speeds(45+mph). I can hold the car at steady revs at around 32-3700 hundy and it will be chirping like mad(in park) and you can feel the air being blown out the nose of the car pretty damn good(thats where my HKS is located) But at WOT during a pull or pass it shuts(like your should be doing) and doesn't allow any boost to leak out.
So it sounds like its working properly to me. The ATI is open under normal cruising conditions like mentioned by the ones who run em above, yours is doing this too, but its opening closing opening closing etc... real fast, but once you get on the gas it quites down right? They are doing the same job...venting excess pressure out of the IC tubing to atmosphere.
J
So it sounds like its working properly to me. The ATI is open under normal cruising conditions like mentioned by the ones who run em above, yours is doing this too, but its opening closing opening closing etc... real fast, but once you get on the gas it quites down right? They are doing the same job...venting excess pressure out of the IC tubing to atmosphere.
J
Thread Starter
Joined: Aug 2002
Posts: 10,331
Likes: 1
From: San Antonio, TX
Originally Posted by Fierce-LS1
Kyle, I would recommend the ATI race. It's a nice piece, does its job, and sounds great at redline 
Members on this board actually convinced me to get it after I asked all the questions about it
Members on this board actually convinced me to get it after I asked all the questions about it
Can you Pm me were you bought it and how much??
Thanks
Kyle
Cant you adjust the valve where its open at part throttle? At idle/cruise vacuum it should be open (venting), it pobably has a strong spring in it and it is closing at part throttle. When you are on boost the spring will close it and the boost going into the valve will keep it shut.
Some valves you can take apart and cut/shim the spring, I've never seen the one you have so I dunno
Te turboXS I was using had shims to adjust the spring pressure.
Some valves you can take apart and cut/shim the spring, I've never seen the one you have so I dunno
Te turboXS I was using had shims to adjust the spring pressure. Thread Starter
Joined: Aug 2002
Posts: 10,331
Likes: 1
From: San Antonio, TX
Originally Posted by kp
Cant you adjust the valve where its open at part throttle? At idle/cruise vacuum it should be open (venting), it pobably has a strong spring in it and it is closing at part throttle. When you are on boost the spring will close it and the boost going into the valve will keep it shut.
Some valves you can take apart and cut/shim the spring, I've never seen the one you have so I dunno Te turboXS I was using had shims to adjust the spring pressure.
Some valves you can take apart and cut/shim the spring, I've never seen the one you have so I dunno
Te turboXS I was using had shims to adjust the spring pressure.THis one does have a Allen head screw on top.... i have never tried adjusting it..... will do...... It has a 11 psi spring in there now if that means anything..... So i should try and adjust it when the car is idling to see if i can get it to vent at idle and from what you are saying Kp the spring should close it the whole when when i go into boost???
Kyle
Thread Starter
Joined: Aug 2002
Posts: 10,331
Likes: 1
From: San Antonio, TX
Originally Posted by frcefed98
Kyle, mine vents all the time too, but only on the freeway or spirited driving around town. It makes the annoying chatter type or you can say chirping if you want but its blowing off the excess pressure in the IC tubing at these speeds(45+mph). I can hold the car at steady revs at around 32-3700 hundy and it will be chirping like mad(in park) and you can feel the air being blown out the nose of the car pretty damn good(thats where my HKS is located) But at WOT during a pull or pass it shuts(like your should be doing) and doesn't allow any boost to leak out.
So it sounds like its working properly to me. The ATI is open under normal cruising conditions like mentioned by the ones who run em above, yours is doing this too, but its opening closing opening closing etc... real fast, but once you get on the gas it quites down right? They are doing the same job...venting excess pressure out of the IC tubing to atmosphere.
J
So it sounds like its working properly to me. The ATI is open under normal cruising conditions like mentioned by the ones who run em above, yours is doing this too, but its opening closing opening closing etc... real fast, but once you get on the gas it quites down right? They are doing the same job...venting excess pressure out of the IC tubing to atmosphere.
J
Sorry Jer i didnt see your post....... It does do a chirping noise while cruising..... most of the time it chrips until i get into OD.....I beleive it stops churping at WOT.... cant hear it over the exhaust
Ill try and get a vid up if my buddy Junior would wake up and answer his phone............. LS1 Tech Stories
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A regular supercharger bypass will usually be open at all times except WOT, I dont know a lot about different BOVs to be honest. What you describe sounds like the valve is closing at part throttle accelleration. The main difference between a bypass and a BOV is the bypass valve has a fitting to pipe the air back into the blower inlet and a BOV doesnt.
They both do the same thing, open at vacuum and close at boost and use the boost pressure to keep them closed but I believe a turbo BOV is setup to close at part throttle with heavier spring pressure - could be wrong there though
They both do the same thing, open at vacuum and close at boost and use the boost pressure to keep them closed but I believe a turbo BOV is setup to close at part throttle with heavier spring pressure - could be wrong there though
nasty if you can get the tial to work like you want its a better deal since the ati is 400 friggin bucks and the noise it makes may be too much for you liking, mines barely cracked and im not kidding when I saw it sounds like a friggin tornado
Cool glad I was able to rev the car over the phone for you, if you need a video of the rev chirpy deal let me know and we can compare to see if you are indeed hearing what I hear.
Yep the ATI is expensive, I can live with my Firebirds "chirp" on the highway for the measly 190 I spent on the HKS
Yep the ATI is expensive, I can live with my Firebirds "chirp" on the highway for the measly 190 I spent on the HKS
Originally Posted by NA$TY-TA
Its workin.... I called FRCEFED..... it takes to long to type so i just called him..... ha ha
The guy had mispelled bypass so not too many people were competing for it I'm sure if you look, and you still want one, you'll find one
Good luck
