blow off valve
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treimche wrote:
PLEASE don't EVER buy a TurboXS BOV. They are total garbage. Just stick with a Greddy, HKS, Tial or Blitz. If the sounds really matter that much, do a search on some of the DSM forums, someone had a page with a bunch of different sound files and vids of different BOV's.
My buddiy had a Turbo XS BOV and he used it as a paperweight. POS. -
I had a Turbo XS Type H on my car for about 15 minutes. Felt like ass and too freakin loud. Switched back to my 1g BOV and went much faster and sounded ok.
I have yet to buy anything other than a Tial or Greddy Type-S. The best sounding BOV for the least bucks is the good ol' 1g BOV. Crush it and do the complete mod from here:
http://www.thedodgegarage.com/turbo_bov_mod.html
Very nice, loud with hard IC and intake pipes. With T3/T4 turbos it sounds absolutley awsome. Only down-side to a 1g BOV is it's not for cars making over 500-550hp. The discharge is too small to prevent throttle body damage, compressor surge, etc.
Wiz
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If you woulda raced me you could of heard a Blitz SS ; )
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personal favorite is the grddy type r, any of the turkey gobbler ones are pretty sweet also.
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Any bypass valve that vents into the atmosphere will be loud. Most stock bypass valves vent back into the intake manifold and makes a kind of whoosing noise rather than the bus-like psst you get from the atmospheric BOV's. The purpose of a bypass valve is not to increase horsepower, but to save the life of a turbo. Keep in mind that if you vent into the atmosphere instead of back into the intake manifold you might encounter idling problems.
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