DV's
06-18-2005, 06:17 AM
#2
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I've had very good luck with Baileys
Forge and Baileys are both from Europe, there are many other really crappy ones and in the US we have alot of Forge knock offs.
Biggest problems I've had with Forge and the knock offs is that they require constant maintainence. Not once have I worked on a car with a Forge valve that I did not have to take apart clean and relube because it would not seal. If it does not seal it doesn't open.. Kind of defeats the purpose of having one.
Baileys is not without their problems at times but for a worry free valve its a buch better choice.
Biggest problems I've had with Forge and the knock offs is that they require constant maintainence. Not once have I worked on a car with a Forge valve that I did not have to take apart clean and relube because it would not seal. If it does not seal it doesn't open.. Kind of defeats the purpose of having one.
Baileys is not without their problems at times but for a worry free valve its a buch better choice.
06-18-2005, 07:53 PM
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Isn't the DV integrated into the compresor housing on the 2.0T???
and I thought it was electronicly actuated. More of a solenoid than a valve thus eliminating being able to use any of the conventional AM DVs?
06-19-2005, 10:14 AM
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Yes on the 2.0T it is
However The S3 has been around for years and was available with the 1.8t over in europe, where the valve is not electronic or built into the housing.
Even for the 2.0T companies are claiming to be working on replacements.
Even for the 2.0T companies are claiming to be working on replacements.
06-19-2005, 11:52 AM
#5
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That should be interesting....
Personally I think having a solenoid instead of a valve is a much better solution. Electronic control, It's either open or closed, No leaks and much faster than any conventional DV could be. Even if they do manage to develop a mechanical AM replacement, I think it will be a tough sell...
06-19-2005, 04:28 PM
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not entirely true
The 1.8t is also electronically controlled on all the DBW cars.
Also it can still leak its still valve just the same as DV wold be with no electronics.. Only now its sort of impossible to pull out and test it.
Also it can still leak its still valve just the same as DV wold be with no electronics.. Only now its sort of impossible to pull out and test it.
06-19-2005, 06:44 PM
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Electrocially controlled...
But still machanically and vacuum actuated. The weak point in the set up. From what I've seen in pictures of the turbo setup, it would appear that the DV / solenoid it a "plate" type sealing mechanism connected to a post that will open and close on a vertical axis. If the plate or opening incorporates some type of seal (rubber, silicone, etc) the tendancy to leak should be extremely remote. However if the integrity of the seal is based soley on two machined surfaces meeting "just right" then a leak is probably rather likely once contaminants build up in the valve. If the oil in the PCV system of the 2.0T FSI's is anything like the 1.8T's, it wont take long to muck these valves up.
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