39 replies to this topic

[micrawavewindow]

hi i want a dump valve sound is there anywhere i can buy one from i dont want a turbo now but i want my car to sound like it has lol yes it may be abit chavy but hay i want one anyway

[Shiftymini]

This just bolts to your exhuast (not that ive ever used one)

http://cgi.ebay.co.u...=item20adda8d18

[mighty mini jack]

Don't encourage him to do that!

Each to their own i suppose

[BoboGib]

could just pay a mate to sit in your passenger seat with a loud hailer and let out a "Ptchhhhhhh" noise every time you change gear....


On a serious note, have a scout around ebay. Sure i've seen a few on there.

[me madjoe 90]

i think there lame but each to there own

You could get one of those anoying speaker ones . But ive herd them in car parks and some of the cars they keep going off every so often, when there not even reving the car they just slowly idleing along.

just a question. why would you want it to sound like it has one when to any one who knows about cars they will clearly be able to tell it dosent. As the fake ones do sound Fake

[micrawavewindow]

dont get me wrong i would love to turbo my mini but i have no idea where to start and really cant afford to pay anyone to do it so when i learn how to do it i will do it then

[micrawavewindow]

hi i have seen these whistle things but i relly want the dump valve not the wistle thanks

[Turbo Nick]

[Sleepy Stu]

C'mon guys lets stick to the forum rules. The poster asked for advice on where he could get one. Not for comments or personal opnions on the device or it use.

[BoboGib]

Dump Valve Sound Not all that cheap though but it's the only one I could find.

[george91]

Mate a dump valve is there to dump the unused compressed air from the turbo, there is no way you can fit an actual dump valve without having something to compress the air in the first place, i would never ever fit any fake dump valve personally, your only cheating yourself! But its up to you, there not going to get any better than whats already been quoted though.

Edited by george91, 07 February 2010 - 10:49 PM.

[BoboGib]

Mate a dump valve is there to dump the unused compressed air from the turbo,

It's actually there to prevent the compressed air from forming a shock wave when the throttle closes. If this were allowed to happen it can travel back down the inlet and stop the turbo causing more lag and worse case scenario destroy it.


I'm sure there are cheaper ones around. I'll continue to google for ya.

[george91]

Mate a dump valve is there to dump the unused compressed air from the turbo,

It's actually there to prevent the compressed air from forming a shock wave when the throttle closes. If this were allowed to happen it can travel back down the inlet and stop the turbo causing more lag and worse case scenario destroy it.


I'm sure there are cheaper ones around. I'll continue to google for ya.

Ahh ok the right idea just the wrong reason, you learn something new everyday i guess. Also what happens when a turbo stalls, and what causes that?

[BoboGib]

When I say shock wave it's my way of explaining it, its a positvie head of pressure that starts moving down the inlet track until it reaches the compressor. As this pressure is moving the opposite way it acts the opposite way on the compressor which slows it down causing it to stall. At the same time though the exhaust gases are still trying to turn the turbine, which as you can imagine can have a really bad effect on the turbo.

I'm sure if you google it , you will get a clearer explanation than I can give. It's a lot easier for me to explain it with diagrams.

[george91]

Yeah i understand that good explanation, i get why there needed on turbo applications now, i was just trying to get my head round the blow through SC dump vavle idea its confusing me still. Thanks

EDIT: micrawavewindow sorry for spamming your thread.

Edited by george91, 08 February 2010 - 12:07 AM.