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by Lefteris (Athens-Greece) » Fri Oct 17, 2008 5:40 pm
by Lefteris (Athens-Greece) » Fri Oct 17, 2008 6:21 pm
blacknight wrote:No change on the sound! But they suppose to whole the pressure higher. One of mine was leaking so I changed both. I have my boost increase by 0.3 bar to max 0.8 bar now.
by fu03steve » Fri Oct 17, 2008 8:08 pm
Lefteris (Athens-Greece) wrote:blacknight wrote:No change on the sound! But they suppose to whole the pressure higher. One of mine was leaking so I changed both. I have my boost increase by 0.3 bar to max 0.8 bar now.
Hmm I have 0.8 bar with out them, are you sure?
Why our turbos dont make the puff puff like the EVOs STIs etc?
by Lefteris (Athens-Greece) » Sat Oct 18, 2008 3:29 am
fu03steve wrote:if you want your turbos to go *piiiiiiishhhh!!*
then you should can change out your diverted valve
to blow off valve
by CJ_Boxster » Sat Oct 18, 2008 11:13 am
Lefteris (Athens-Greece) wrote:blacknight wrote:No change on the sound! But they suppose to whole the pressure higher. One of mine was leaking so I changed both. I have my boost increase by 0.3 bar to max 0.8 bar now.
Hmm I have 0.8 bar with out them, are you sure?
Why our turbos dont make the puff puff like the EVOs STIs etc?
by Lefteris (Athens-Greece) » Sat Oct 18, 2008 4:58 pm
aren040 wrote:Lefty, this is what you have:A compressor bypass valve (CBV), also known as a compressor relief valve or diverter valve, is a vacuum-actuated valve designed to release pressure in the intake system of a turbocharged or centrifugally supercharged car when the throttle is lifted or closed. This air pressure is re-circulated back into the non-pressurized end of the intake (before the turbo) but after the mass airflow sensor.
This is what goes PSHHHHH:A blowoff valve, (BOV, sometimes hooter valve, not to be confused with a dump valve) does basically the same thing, but releases the air to the atmosphere. This creates a very distinctive sound desired by many who own turbocharged sports cars. Some blowoff valves are sold with trumpet shaped exits that amplify the hissing sound, as not all blowoff valves are the same, some make different noises and these designs are normally marketed towards the tuner crowd. For some owners this is the only reason to get a blowoff valve. Motor sports governed by the FIA have made it illegal to vent unmuffled blowoff valves to the atmosphere. In the United States, Australia and parts of Europe cars featuring unmuffled blowoff valves are illegal for street use.
http://en.wikipedia.org/wiki/Blowoff_valve
Hope that helps you out a little. Now on the other hand, CJ even said that Riches car felt really nice with the upgrade.
-aren
by Lefteris (Athens-Greece) » Sat Oct 18, 2008 5:01 pm
CJ_Boxster wrote:Lefteris (Athens-Greece) wrote:blacknight wrote:No change on the sound! But they suppose to whole the pressure higher. One of mine was leaking so I changed both. I have my boost increase by 0.3 bar to max 0.8 bar now.
Hmm I have 0.8 bar with out them, are you sure?
Why our turbos dont make the puff puff like the EVOs STIs etc?
Yes he has .3 bar before the install of the Evo diverter valve due to a badly leaking OEM diverter valve. After I installed the diverter valve in Rich's TT we immediatly notice that the peak pressure would reach 1.0 bar.
by Lefteris (Athens-Greece) » Mon Oct 20, 2008 2:23 pm
blacknight wrote:Yeah, I need to send my DME in for 490hp tuning since I already have the DVs.
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