Which BOV is louder?
Originally Posted by rob1n
HKS SSQV or GReddy Type RS?
Your input is greatly appreciated.
Your input is greatly appreciated.
Edit: check out nd4spd4atc's thread. he has a vid and you can hear the type rs blow off. Rhythmnsmoke has a ton of vids on youtube with the HKS bov.
Originally Posted by Schuller
Turbonetics Raptor BOV sounds great. Its a KSSSSHHHHHH kinda sound. Loud as hell. Just say no to poser HKS SSQV butt chirp sounds.
Originally Posted by Joe_Dezod
HKS > Greddy RS > TiAL.
Multiple cars, engines, boost levels to back it up
Multiple cars, engines, boost levels to back it up

HKS > Greddy RS > TiAL.
Heh, on evom the HKS is rated worse than stock, with the tial coming out on top for the most part. there is a very strong and seething hatred for the SSQ in the evo community :p
As for the topic at hand, the sound of your diverter valve shouldn't even register on your list of concerns. All you need to know is if it will hold the amounst of boost you're running and if it recirculates/can be set to recirculate or not.
If it can hold the amount of boost and recirculate it instead of atmospheric vent, then you're set.
If it doesn't recirculate, expect extremely rich conditions on shifts and stalling/idle hiccups.
little sidetrack...
what causes the rich condition in between shifts with an atmospheric BOV?
MAF sensor already registered x amount of air going into the system during on-throttle situation, get off the gas and Y amount of air is released from the system leaving you with Z amount of air but the engine still puts in gas according to X amount because thats what the MAF sensor said was going in?
what causes the rich condition in between shifts with an atmospheric BOV?
MAF sensor already registered x amount of air going into the system during on-throttle situation, get off the gas and Y amount of air is released from the system leaving you with Z amount of air but the engine still puts in gas according to X amount because thats what the MAF sensor said was going in?
Originally Posted by Neothin
little sidetrack...
what causes the rich condition in between shifts with an atmospheric BOV?
MAF sensor already registered x amount of air going into the system during on-throttle situation, get off the gas and Y amount of air is released from the system leaving you with Z amount of air but the engine still puts in gas according to X amount because thats what the MAF sensor said was going in?
what causes the rich condition in between shifts with an atmospheric BOV?
MAF sensor already registered x amount of air going into the system during on-throttle situation, get off the gas and Y amount of air is released from the system leaving you with Z amount of air but the engine still puts in gas according to X amount because thats what the MAF sensor said was going in?
but honestly, i think people blow this problem up more than should be. i have never stalled before and don't have idle problems so idk why some people have so much trouble with an atmo bov. i have the hks though and supposedly its the best performing bov.






