Quote:
Originally Posted by dongoesby
could you give more in-depth info on the "Bosch style" bpv? Where can we get it, and how does it work comparing to stock bov? Is it a complete replacement?
I'm continously searching for a recirculate valve that can replace my stock recirculate valve, because I constantly thinking mine does not work.
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Bosch Turbo Bypass Valve for Audi Porsche VW Diverter:eBay Motors (item 360102436125 end time Nov-22-09 18:15:32 PST)
Like I said, it's not a drop in replacement. I epoxied on a 1.375" tube I beaded for the inlet, or you could get a reducing coupler - something. The inlet/outlet of the stock BPV is ~1.3"/~1"(I think, been a while since I messed with a stock one), the Bosch style one is 1"/1" so you have to make the inlet bigger. The packaging is similar. I've got mine in the stock location on my GReddy VSPL IC kit recirculating to an aluminum intake pipe I fabbed up.
Like I said, it works great, and you can adust the spring inside for whatever boost you're running and vacuum you draw at idle. I have the middle one in and it works just fine. No more compressor surge like the HKS SSQV was giving me on partial throttle lifts, and much faster response.