Which BOV/Dump Valve
19 July 2011, 08:48 PM
#1
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Which BOV/Dump Valve
Apologies if this has been covered a thousands times but i'm in need of a quick answer as i'm between purchasing two cars tomorrow, one with stock BOV and the other with an after market type (not sure it its recirculating or not).
I have done alot of reading around the BOV types and alot of literature states that the non recirculating BOV's are bad for the WRX's, is this the case and how would I know if its a recirc type or not?
An early answer would be much appreciated. Cheers, Shaun
I have done alot of reading around the BOV types and alot of literature states that the non recirculating BOV's are bad for the WRX's, is this the case and how would I know if its a recirc type or not?
An early answer would be much appreciated. Cheers, Shaun
19 July 2011, 09:40 PM
#2
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OEM recirc looks like this
Edit: Just realised that this is completely unhelpful as it wasn't what you asked. Look for vents on the side of the BOV - obviously recirc won't have any
E.g. Bailey's VTA
Bailey's recirc
Edit: Just realised that this is completely unhelpful as it wasn't what you asked. Look for vents on the side of the BOV - obviously recirc won't have any
E.g. Bailey's VTA
Bailey's recirc
Last edited by StuS; 19 July 2011 at 09:46 PM.
19 July 2011, 09:50 PM
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General SN consensus on VTA is that they're bad and chavvy, but I'm staying out of that argument 
The search facility is your friend
Personally I run without a dumpvalve
The search facility is your friendPersonally I run without a dumpvalve
Last edited by StuS; 19 July 2011 at 09:52 PM.
19 July 2011, 09:52 PM
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lol, yeah there needs to be a balance - not partic. worried if its perceived as chavvy for now as long as they dont damage the enginer (if its a VTA thats currently fitted). Cheers
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19 July 2011, 10:33 PM
#8
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also vta will make a loud tshh sound when coming off throttle.
re circ makes a small sound but a vta is way louder.
re circ makes a small sound but a vta is way louder.
Last edited by Billet; 19 July 2011 at 10:38 PM.
19 July 2011, 10:38 PM
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I think it may have a VTA fitted then, I will check tomorrow. Are there any engine issues/problems associated with VTA type instead of recirc's?
20 July 2011, 07:20 AM
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I have recently fitted the GFB Respons dumpvalve and I am very happy with it. It allows me to run recirculating when I want peace and quiet, very loud for serious hooning or anywhere in between. And no loss of boost either like I was getting from the standard one.
Best quality dumpvalve I have seen after I compared it to a few other makes. Tim at Scoobyparts had them in stock at a reasonable price.
http://www.gfb.com.au/images/stories...release_NA.pdf
Best quality dumpvalve I have seen after I compared it to a few other makes. Tim at Scoobyparts had them in stock at a reasonable price.
http://www.gfb.com.au/images/stories...release_NA.pdf
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