dump valve / blow off valve?

[ydg27]

what is the difference?
where can i get them cheap??
i want a loud as fook ptish not a wssshhhhh, must be the high pitched petish sound

[Jester]

is this for the 1.7TD you mentioned before??

[Stokie_Dave]

I think the only diff is the 'blow off' term is used be zee japs and most of their kit has that gay chirpy sound rather than vroooooooom TISSSSSHHHHHH lol

[XZiBiT]

dump valves go vrmmmmmm KAchsssssssss
blow off valves go vrmmmmm CH CH CH ch ch

[peester]

lol@ this..
xibit; vroom kachsssssss?
lol; its tsssssssshhhhhhh. for dumpers
yup the blow off/chatter valves are different; kind of a "pitipitipitipitipiti"
lmao

[XZiBiT]

"pitipitipitipitipiti :o lol
imagine a rally car flutter kinda sound like a flutter valve (or blow off valve )

o and peester :lol: trying to spell a sound is kinda hard for me :lol:

[MechaT]

Dump valves and blow off valves are one and the same.

Atmospheric dump valves blow air into the atmosphere (hence the name) and go tiiisch!

Quieter recirculating dump valves, which rally cars use (because of noise regs i think), chirup.

[dathers]

the fluttering sound you here on a rally car is the wastegate chattering,not a blow off/dump valve which as said above are two names for the same thing,its just different makes,make different noises.
Dave

[ydg27]

so the ptish one is a blow off valve and the tssssshhhh one is a dump valve