Team, should a dumpvalve "atm" release i.e can you hear it release on every change? mine does most of the time and then somtimes when I'd expect it to make a noise it's silent, thing is I'm not sure if this is correct or not.. Help

 

Depends if you are on boost or not. What DV do you have? by atm I guess you mean it dumps to the atmosphere?

Paul

 

It should always go off when Turbo is spinning, seems to
be above 3,000 rpm on mine. Doesn't go off below that as
there is no pressure created. Nice and loud changing
gear at about 6,000 rpm

 

been thinking about getting a dump valve but dont you ever get pissed off with the noise after a few weeks or - say if you aint wanting to show off when youre going out for bread or milk etc?

 

nooooo!

i never pissed off with it!

fact is if you want to be stealth - just stay off boost.

soooo much torque in scoobs, that you could drive round all day without DV making a peep.

Weava

ps: if you let off acceletator slooooowly whilst on boost the same is true.



[Edited by mista weava - 10/31/2003 6:41:36 PM]

 

Nope it definitly doesn't blow off all the time even when I'm into the turbo spinnig 4k, tried it up the road just now and it simply stays silent when changing... I know how to keep it quiet and how to make it dump by pressue on the throttle, however this just feels wrong! Sometimes when I expect it to dump fully it just makes a kind of clatering\fluttering noise.
I got it from Well Lane about 2 weeks ago so called them, got the usual "we've installed hundreds and hav'nt had a problem!" Seemed a bit reluctant to accept that it could be iffy! Anyhow I'll see what they do when they have a test drive next week... I'll let you know if they deal with it properly or I have to get my legal head on!

 

The sound you describe sounds like turbo stall a weird sort of flutter sounds a bit like a horse hehe...I had it when I had it when I had a faulty BOV. Depends on what type of bov it is it might have shims in or too stiffer spring.

 

something is not right there imo.
weava