I was thinking off fitting a dump valve to my octy vrs mk1 but a guy in work says that the 1.8t engine doesn't like these and im better off fitting a cone filter can anyone advise me?

One more thing im not a freedom member but is there somewhere i can post a pic of my shinny new motor?

cheers

Eh :confused: plenty of people have changed the "dump valve" on their 1.8t's.

me included, I have a Forge 007, this or Bailey seem to be the usual recommendation.

Do you mean change it to a blow off type ? as this is a different thing alltogether & no the 1.8t engine does not like them, as far as I know.

sorry should've explained it better yes i meant a blow off type just for the noise obviously

I have a forge 007 Diverter valve and Carbonio CAI.

Both together produce a really nice "GrowlPsssst" Noise.

I have a forge 007 Diverter valve and Carbonio CAI.

Both together produce a really nice "GrowlPsssst" Noise.

cool thanks for the advise i saw a bailey one for sale and was thinking bout it but this guy had sorta put me off it :( i really just want the Psssst noise sad i know:( lol

Think your pals talking out of his chuff.. the 1.8T already has a dump valve.. if it didn't you'd blow your intercooler pipes off or burst the throttle body every time you took your foot off the gas after giving it a bit of welly .Maybe he means fitting an 'uprated one that dumps at a higher boost or just makes a fancy whistling noise...[ie a Ch@v trumpet] Fitting one on its own won't be much point..maybe thats what your mate means. The VW 1.8T ,based on what the guys on here have done, is more than happy to run higher boost..within reason...preferably with other mods like a re-map etc.

A cone filter may help breathing [depends on make].. If I where you i'd use the search on here and have a bit of a read... You may be better off with a green panel filter unless you're simpley after the 'fur coat and no knickers look' for your engine bay? depends on what you are wishing to achieve...

EDIT : MUST TYPE FASTER AND KEEP UP TO SPEED.

Think your pals talking out of his chuff.. the 1.8T already has a dump valve.. if it didn't you'd blow your intercooler pipes off or burst the throttle body every time you took your foot off the gas after giving it a bit of welly .Maybe he means fitting an 'uprated one that dumps at a higher boost or just makes a fancy whistling noise...[ie a Ch@v trumpet] Fitting one on its own won't be much point..maybe thats what your mate means. The VW 1.8T ,based on what the guys on here have done, is more than happy to run higher boost..within reason...preferably with other mods like a re-map etc.

A cone filter may help breathing [depends on make].. If I where you i'd use the search on here and have a bit of a read... You may be better off with a green panel filter unless you're simpley after the 'fur coat and no knickers look' for your engine bay? depends on what you are wishing to achieve...

EDIT : MUST TYPE FASTER AND KEEP UP TO SPEED.

aye he was refering to fitting an upgraded one he is a good mechanic i do trust him he meant exactly what u said i just worded it wrong my bad he mentioned a recirculating dump vale which comes on them standard

Surely if it didn't have a dump valve as standard it wouldn't blow itself to peices, it would possibly be a little more laggy and slightly harder wearinf on the turbo. There have been loads of turbo cars in the past that haven't had DV's as standard.

I think it's widely accepted that you can only run a selected few recirculating dump valves as opposed to the louder atmospheric DV's that everyone seems to want for the dumping noise.

Surely if it didn't have a dump valve as standard it wouldn't blow itself to peices, it would possibly be a little more laggy and slightly harder wearinf on the turbo. There have been loads of turbo cars in the past that haven't had DV's as standard

Its more than likely they will have had a crude pressure blow off valve in the inlet manifold to prevent over pressurisation on the intake..effectively a crude blow off dump valve.. but , yes its not unknown to run without one without blowing up the intake.. you'll probably find the waste gate will have been set to open to prevent over pressurising by dumping off the 'pumping' exhuast gas .. not really good for the turbo impellors though IMHO

aye he was refering to fitting an upgraded one he is a good mechanic i do trust him he meant exactly what u said i just worded it wrong my bad he mentioned a recirculating dump vale which comes on them standard

He is correct as the VTA's don't work on the 1.8T.

The Forge 007 is the same as the standard valve and along with a good induction kit will give you the noise your after

You would also get error codes with a atmospheric dump valve.I think it can be done though but searching is required either on here or on the seat cupra forum and i think it may require a n249 bypass but i maybe wrong.

Escort RS Turbo's never had a dump valve or a crude blow off valve.

Cosworth's did, but run happily without them.

The engine consumes the air to as degree, but then the turbo is stil spinning causing boost, which means surge as now the engine cannot consume the air in the engine.

The wastegate cannot blow off boost from the inlet system. It opens to allow exhaust gasses out to slow the turbo down.

Just fit a good panel filter and leave the rest alone.

This forum is full of people fitting dump valves and having problems. HTH.

Just fit a good panel filter and leave the rest alone.

This forum is full of people fitting dump valves and having problems. HTH.

With all due respect, it isn't or at least not that I'm aware of anyway

With all due respect, it isn't or at least not that I'm aware of anyway

Do a search and see how many people have problems with a dump valve & remap

I have a forge 007 Diverter valve and Carbonio CAI.

Both together produce a really nice "GrowlPsssst" Noise.

Agreed - mine has a BMC CAI and Forge DV. Sounds mean :D

Do a search and see how many people have problems with a dump valve & remap

But how many people don't have problems and don't bother posting up saying so. Plus the OP never mentioned a re-map

But how many people don't have problems and don't bother posting up saying so. Plus the OP never mentioned a re-map

There you go, fit a dump valve but leave it as standard ish.....

The wastegate cannot blow off boost from the inlet system. It opens to allow exhaust gasses out to slow the turbo down.

Tis what I said...

the waste gate will have been set to open to prevent over pressurising by dumping off the 'pumping' exhaust gas

effectively it'll stop the turbine being driven rather than getting rid of pressure from the intake..

horses for courses I suppose...

Tis what I said...

effectively it'll stop the turbine being driven rather than getting rid of pressure from the intake..

horses for courses I suppose...

Sorry, I didnt read your post fully.

You say...

you'll probably find the waste gate will have been set to open to prevent over pressurising by dumping off the 'pumping' exhuast gas .. not really good for the turbo impellors though IMHO

This is a standard thing - All turbocharged cars have a wastegate set to open at set pressure at the actuator.

Also, not dumping the air through a dump valve is unlikely to cause the throttle body or inlet system to blow up. You may pop off a boost hose, but that is more so to do with running more boost than the hose can handle when under acceleration.

Agreed - mine has a BMC CAI and Forge DV. Sounds mean :D

I HAVE A CARBONIO CAI AND BAILEY DV30 SOUNDS COOL,

WILL THE NOISE FROM THE FORGE SOUND THE SAME OR QUIETER?

I PRESUME ITS A 007P

MINE PUTS CAR INTO LIMP MODE EVERY SO OFTEN

I HAVE A CARBONIO CAI AND BAILEY DV30 SOUNDS COOL,

WILL THE NOISE FROM THE FORGE SOUND THE SAME OR QUIETER?

I PRESUME ITS A 007P

MINE PUTS CAR INTO LIMP MODE EVERY SO OFTEN

Have you done an error code scan? the dv30 is a recirculation valve the same as the forge valve so should be ok.

p.s i would take the caps lock off it looks like you are shouting and some Briskoda staff don't like it ..... you know who you are

Have you done an error code scan? the dv30 is a recirculation valve the same as the forge valve so should be ok.

p.s i would take the caps lock off it looks like you are shouting and some Briskoda staff don't like it ..... you know who you are

OK will do point taken sorry to any1 who doesnt like caps lock:weeping:

There is a good article here by turbotech about compressor bypass blow-out which includes a test of 17 blow-off valves (DVs). It is a bit dated but worth reading.

Just to add, my R5 GTT never had a DV as standard either...