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 Posted: Tue Jun 22, 2010 2:47 pm |
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Joined: Feb 08, 2010
Posts: 368
Trade Rating: +1
Location: Penzance & Falmouth Cornwall
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| fezzie22 wrote: |
| Ash wrote: |
| Don't all turbo's have dump valve's fitted? |
Thats a Wastegate mate.
A waste gate opens in the exhaust side of the turbo when pressure in the turbo builds up too high, normally after heavy acceleration.when the waste gate opens the exhaust gases stop spinning the turbo spools.
A dump valve dumps the pressurised air in the induction system back to the atmosphere, a dump valve is used to prevent the turbo spooling back on itself. |
Not strictly into the atmosphere, depends on what car 
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Posted: Tue Jun 22, 2010 2:47 pm |
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Joined: Feb 08, 2010
Posts: 5400
Trade Rating: +105
Location: Stafford
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Don't know how badly they do loose power but I think they sound great.
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Posted: Tue Jun 22, 2010 2:48 pm |
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Joined: Feb 21, 2010
Posts: 354
Trade Rating: 0
Location: midlands
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i love that white 206 . sorry for spamming
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Posted: Tue Jun 22, 2010 2:50 pm |
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Joined: Feb 08, 2010
Posts: 368
Trade Rating: +1
Location: Penzance & Falmouth Cornwall
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oh and dont fit one to my old car lol
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Posted: Tue Jun 22, 2010 2:50 pm |
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Joined: Feb 07, 2010
Posts: 5575
Trade Rating: +33
Location: Moscow
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| TDOCUK wrote: |
To a derv? Dervs don't run a vacuum at any time, so a dump valve is both pointless and actually harms performance as it is essentially a boost-leak. |
www.tdocuk.com/viewtop...ump#p66485
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Posted: Tue Jun 22, 2010 2:59 pm |
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Joined: Feb 07, 2010
Posts: 3948
Trade Rating: +7
Location: A Track near you ;)
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DV sound poo on dervs anyway, ive heard it sounds like a farting noise
DV on petrols sound awesome tho  Thats why i have one on my petty 206
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| Renault Clio III RS - Race Car
Renault Trafic - Daily & Tow Van
Former Poverty 206 XS 1.6Turbo Owner  | |
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Posted: Tue Jun 22, 2010 3:00 pm |
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Joined: Feb 07, 2010
Posts: 19
Trade Rating: 0
Location: Runcorn
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As said previously in the thread, the dervs you hear with a 'dump valve' are actually solenoids. It's purely for willy waving. They aren't that difficult to fit, and won't cause any issues with the engine, as they are just designed to make the sound when you shift.
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Posted: Tue Jun 22, 2010 4:15 pm |
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Joined: Feb 07, 2010
Posts: 271
Trade Rating: +2
Location: Oldbury west midlands
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Haha I was just seeing if it was a easy job but by the sound of it f**k that lol
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Posted: Tue Jun 22, 2010 4:50 pm |
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Joined: Feb 07, 2010
Posts: 1176
Trade Rating: +1
Location: borders, near carlisle.
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you can get kit's from the derv doctor and other sites but they need alot of setting up as they work in a completely different way to petrol turbo's!
| Ash wrote: |
| Don't all turbo's have dump valve's fitted? |
as fezzie wrote, it's wastegates.  and no, not all turbo's have wastegates. the VGT (Variable Geometry Turbo's) turbo's fitted to the 1.6HDi FAP dont have them as the ECU move the vanes inside the exhaust wheel housing to control the turbo speed.
| Elldan wrote: |
| i heard a deisel golf with one today, sounded good |
that may have just been waste gate chatter mate.
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Posted: Tue Jun 22, 2010 4:53 pm |
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Joined: Mar 02, 2010
Posts: 738
Trade Rating: +1
Location: Stirling
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may sound daft, but is there anyway to make the wastegate chatter louder??
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| 2.0 hdi, Pipercross conical filter, egr removed, 50mm cat back! Chipped
Awaiting cat removal (Done  ), FMIC, Coilovers 40mm Spax springs to be collected at fcs ), And a nice set of Proxes! (done ) roll on the summer!
Rip Tara... U were good wee tango wagon!  gonna miss u :'(
Team: No smoke, No poke......
Team: FIREDANCE! | |
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Posted: Tue Jun 22, 2010 5:00 pm |
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Joined: Feb 07, 2010
Posts: 1176
Trade Rating: +1
Location: borders, near carlisle.
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a few mates have some heavily modified jap cars with dump valves fitted and they sound, the tits!
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Posted: Tue Jun 22, 2010 5:03 pm |
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Joined: Feb 07, 2010
Posts: 1176
Trade Rating: +1
Location: borders, near carlisle.
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| The_Stig wrote: |
| may sound daft, but is there anyway to make the wastegate chatter louder?? |
more boost maybe? but with more boost, other things need changed. I.E. mapping and if you're doing it on a 2.0HDi, you'll be better off fitting a FMIC first to help keep EGT's down.
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Posted: Wed Jun 23, 2010 8:40 am |
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Joined: Jun 19, 2010
Posts: 59
Trade Rating: 0
Location: Gateshead
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| The_Stig wrote: |
| may sound daft, but is there anyway to make the wastegate chatter louder?? |
Chatter sounds amazing, but i was told its not good for the engine, but that could be bull shizzle
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| 206 Dies a Fiesta is born. | |
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Posted: Fri Jun 25, 2010 3:51 pm |
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Joined: Feb 07, 2010
Posts: 673
Trade Rating: +8
Location: sheffield
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fit a does pipe insted
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Posted: Fri Jun 25, 2010 4:40 pm |
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Joined: Mar 02, 2010
Posts: 738
Trade Rating: +1
Location: Stirling
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| b47t0n wrote: |
| fit a does pipe insted |
A what?
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| 2.0 hdi, Pipercross conical filter, egr removed, 50mm cat back! Chipped
Awaiting cat removal (Done ), FMIC, Coilovers 40mm Spax springs to be collected at fcs ), And a nice set of Proxes! (done ) roll on the summer!
Rip Tara... U were good wee tango wagon! gonna miss u :'(
Team: No smoke, No poke......
Team: FIREDANCE! | |
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