I've got a DV-R. Does diverter valve fluttter typically occur from a too-stiff spring, or too light?

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08-29-2006, 07:09 PM

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GreekTTCharlie

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Har har!

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08-29-2006, 08:01 PM

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MCPaudiTT - DEFCON 1

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Well, it's FREE!

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08-30-2006, 03:34 AM

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roadyTT

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There's always the Pee-Flow.....:P

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08-30-2006, 05:24 AM

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TTschwing

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Flutter is not necessarily bad, just annoying....>>

Too stiff a spring, on the other hand, will delay the release and amount of pressure and stall the turbo a little resulting in less than optimum boost recovery during shifts...

A seriously hard spring or inoperative valve will cause compressor stall which makes a distinct "Chuffing" sound. This is really not good and puts lots of strain on the compressor vanes..

As mentioned before, DVR's flutter. You may not be able to get rid of it.

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08-30-2006, 06:20 AM

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TTuned

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I get that "flutter" when releasing up on the accelerator in 1st and 2nd.

Will removing the small spring help some? I have the latest Greddy RS..

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08-30-2006, 07:01 AM

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TTschwing

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I'm now at..>>>

5 turns from soft with the center spring removed. Pulling that gives you more adjustment range up and down. Since the RS was designed as a BOV, full soft with all the springs is a rough equivalent. You do have the Pressure coming in from the bottom port, right?

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