Need a BOV to recirculate and hold about 30psi.

[VETTE_50_TH]

Like previously said, the synapse or the new recirculated Tial that just came out are great choices, Look pretty neat too.

James

 

[johnsonroda27]

wouldn't recommend the hks with recirc.. when i had that valve recircing the intake (from the recirc hose) was actually sucking the valve partially open and was leaking .. without the recirc i had no problems .. sounds odd but it was deinfelty happening.. id do the new tial bov.. greddy is honda shit and is trash

 

[Boosted98gsx]

Uh, you cannot "Suck" the HKS valve open holmes. If you "suck" the HKS valve, it closes....

 

[johnsonroda27]

ok your wrong.. flow is going to your throttle body.. and when you let off it backs up which pulls the valve open which relieves the pressure out of the valve..that recirc is coming from your intake.. pulling air the other way.. the same way the valve pulls open..which happened to me..

 

[johnsonroda27]

unless I had some really screwy odd problem.. thats what happened to me.. spent alot of time findout thats what was happening..I'm not saying they all do that...but 100% positive..thats what happened to me and my valve..dont know if the recirc hose had anything to do with it or what but..

 

[Boosted98gsx]

ok your wrong.. flow is going to your throttle body.. and when you let off it backs up which pulls the valve open which relieves the pressure out of the valve..that recirc is coming from your intake.. pulling air the other way.. the same way the valve pulls open..which happened to me..

The HKS valve is in equilibrium for the "chamber" that holds boost (the part that air enters from the IC piping to leave the system). It is pushing on TWO flanges. One exits the entire system, the other pushing back, counteracting the system. The ONLY thing that allows the boost to leave is a pressure differential activated by a vacuum which in conjunction with a spring, opens the valve. If you "suck" on the outlet of an HKS valve, you help close the system.

 

[johnsonroda27]

The HKS valve is in equilibrium for the "chamber" that holds boost (the part that air enters from the IC piping to leave the system). It is pushing on TWO flanges. One exits the entire system, the other pushing back, counteracting the system. The ONLY thing that allows the boost to leave is a pressure differential activated by a vacuum which in conjunction with a spring, opens the valve. If you "suck" on the outlet of an HKS valve, you help close the system.

Id love to know why mine did it then.. i switched valves because of it.. not to mention with the 35r you get a little surge because its a bigger turbo running almost 30psi it cant blow off that much.. now that i know for a fact is true.. haha.. but i dont know why mine did that then.. love to know why..

 

[Boosted98gsx]

The HKS valve does not "open" by moving towards the outlet. If you watch it, it opens back towards the boost/vacuum source.

 

[Boosted98gsx]

The HKS valve is in equilibrium for the "chamber" that holds boost (the part that air enters from the IC piping to leave the system). It is pushing on TWO flanges. One exits the entire system, the other pushing back, counteracting the system. The ONLY thing that allows the boost to leave is a pressure differential activated by a vacuum which in conjunction with a spring, opens the valve. If you "suck" on the outlet of an HKS valve, you help close the system.

I need to correct something, the vacuum counteracts the spring, which is supposed to hold the valve shut at idle (but fails most of the time).