Aubrey Posted May 7, 2017 Share Posted May 7, 2017 Iv got a aftermarket dump valve on mine. Should I put a recirculating valve back on it? The dump valve was on it when I got it. What's best for my car Quote Link to comment Share on other sites More sharing options...
mattiekane Posted May 7, 2017 Share Posted May 7, 2017 Depends if your asking purists or not lol Sent from my HTC One M9 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Aubrey Posted May 7, 2017 Author Share Posted May 7, 2017 Purists lol Quote Link to comment Share on other sites More sharing options...
aucky Posted May 7, 2017 Share Posted May 7, 2017 Does car run rite with the dump valve on?do you like the sound?if yes to both then leave it on.if no then you could go with an ajustable on to recer and dump to get it to sound and run rite.if you dont want noise then go with oem sti recerc. Sent from my LG-D855 using Tapatalk Quote Link to comment Share on other sites More sharing options...
Jay762 Posted May 7, 2017 Share Posted May 7, 2017 A VTA dump valve can make your car run rich as everytime it vents the air to atmosphere to stop back pressure etc. a recirc keeps the air in the system keeping your mixture closer to 1 lambda. Is this a bad thing - not necessarily, does it make more noise - yes choice is yours - or ditch any valve and have some turbo flutter instead - not great for your turbo in the long run but sounds authentically rally Quote Link to comment Share on other sites More sharing options...
Aubrey Posted May 7, 2017 Author Share Posted May 7, 2017 Ok thanks I'm going to take the dump valve off thanks for all your help Quote Link to comment Share on other sites More sharing options...
johned Posted May 7, 2017 Share Posted May 7, 2017 Standard. Quote Link to comment Share on other sites More sharing options...
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