Chatter with a dump valve fitted-is it possible ?
15-05-2008, 09:15 PM
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Chatter with a dump valve fitted-is it possible ?
Fitted a dump valve to my saph earlier on and get chatter and woosh from the dump valve ? Thought i read somewhere that you cant get both ??
15-05-2008, 09:16 PM
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you can if your dv has a strong spring, it will stay closed at low boost and chatter...
15-05-2008, 09:17 PM
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..i want chatter!!!
15-05-2008, 09:17 PM
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Ah right,so for more tish do i fit an airbox ?
15-05-2008, 09:18 PM
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aint ichatter bad for your turbo? sure i heard that somewhere
15-05-2008, 09:24 PM
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Quote:
Originally Posted by
focuschivvy
aint ichatter bad for your turbo? sure i heard that somewhere
me too..ideally i want chatter but not if its gona fook my turbo,hopefuly the rs gurus should let us know soon
15-05-2008, 09:24 PM
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Quote:
Originally Posted by
KSA-Cossie
Fitted a dump valve to my saph earlier on and get chatter and woosh from the dump valve ? Thought i read somewhere that you cant get both ??
We get dump and chatter on our FRST
Last edited by GTechR; 15-05-2008 at 09:30 PM .
15-05-2008, 09:28 PM
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Trouble is people confuse 'chatter' as found on external waste gates with compressor surge or stall as found in this case. You'll get both if the dump valve either cant keep up with the amount of boost thats trying to escape thru it or as said previously, if the spring is quite hard. In theory, compressor stalling is very bad and on high boost cars it can shatter an impellor shaft...altho no doubt many people on here will now say they've done it since their old man first started working down the pit and it aint blown yet blah blah lol
15-05-2008, 09:28 PM
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for more tish,fit a dv with a weaker spring, that opens to vent the boost as soon as you lift off....
15-05-2008, 09:28 PM
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The GGR type DV's give both
15-05-2008, 09:31 PM
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imo chatter is bad....sending compressed air the wrong way through your turbo compressor cant be a good thing ...
15-05-2008, 09:32 PM
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Quote:
Originally Posted by
JTECHSAFF
imo chatter is bad....sending compressed air the wrong way through your turbo compressor cant be a good thing ...
Sounds ace though dunnit
15-05-2008, 09:32 PM
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Quote:
Originally Posted by
JTECHSAFF
for more tish,fit a dv with a weaker spring, that opens to vent the boost as soon as you lift off....
which dumpy would you recomend for more chatter along with the tish?
15-05-2008, 09:33 PM
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In theory no but surely it depends on application really?
15-05-2008, 09:34 PM
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Quote:
Originally Posted by
Moonstone Mo
which dumpy would you recomend for more chatter along with the tish?
As above
15-05-2008, 09:34 PM
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i run the twin piston bailey one, and have plenty of both..infact it sounds fooking hardcore
15-05-2008, 09:36 PM
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TEV has both on a GGR DV, good units but a strong spring and decent strong diaphragm will cause this. A week spring and soft diaphragm will dump easier but ultimately more likely to leak.
15-05-2008, 09:37 PM
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thats why i like the bailey piston type...no diaphragms
15-05-2008, 09:38 PM
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Quote:
Originally Posted by
James90RS
The GGR type DV's give both
I have a GGR item for sale £100
15-05-2008, 09:39 PM
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Quote:
Originally Posted by
JTECHSAFF
thats why i like the bailey piston type...no diaphragms
Not sen one myself, what inside one of hese then, 2x pistons but how is it layed out inside, cheers
15-05-2008, 10:51 PM
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My mates Evo 6 chatters and dumps on the HKS SSVQ. Its got different load springs though to get different characteristics.
15-05-2008, 11:43 PM
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i have a collins twin piston DV on a zetec turbo and it has some chatter, sounds pretty good.
16-05-2008, 01:49 AM
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i run a t34/35 and no dump valve and though i agree with the above that in theory sending air in the oppisite direction it was designed to go stu @ msd reliably informed me that on the above said turbo no harm will come to it.
16-05-2008, 01:55 AM
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I run no dumpvalve, Took it off... Sounds awesome on chatter... Fuck the turbo life, Live for the moment
Quick video..
http://www.youtube.com/watch?v=rW2FvwYfqKA
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..i want chatter!!!
15-05-2008, 09:24 PM
