How can I adjust my dump valve?
13 August 2011, 09:54 PM
#1
Scooby Regular
Thread Starter
Join Date: Aug 2011
Location: Wales
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
How can I adjust my dump valve?
Does anyone know how to set an aftermarket dump valve?
How do you set it?
I know it can be set on Hard or Soft.....which is best
I'ts a loud supersonic one and I like it to sound loud
Any ideas...........
P.S- What do they actually do? (apart from make loud noises!
How do you set it?
I know it can be set on Hard or Soft.....which is best
I'ts a loud supersonic one and I like it to sound loud
Any ideas...........
P.S- What do they actually do? (apart from make loud noises!
13 August 2011, 10:01 PM
#2
Scooby Regular
Join Date: Jan 2011
Location: Hengoed
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
Does anyone know how to set an aftermarket dump valve?
How do you set it?
I know it can be set on Hard or Soft.....which is best
I'ts a loud supersonic one and I like it to sound loud
Any ideas...........
P.S- What do they actually do? (apart from make loud noises!
How do you set it?
I know it can be set on Hard or Soft.....which is best
I'ts a loud supersonic one and I like it to sound loud
Any ideas...........
P.S- What do they actually do? (apart from make loud noises!
Someone wth more knowledge will tell you or just google it.
13 August 2011, 10:22 PM
#3
Scooby Regular
iTrader: (100)
Join Date: Oct 2008
Location: Planet Earth
Posts: 13,684
Likes: 0
Received 0 Likes
on
0 Posts
I believe that the Supersonic valves if I remember correctly have an adjusting screw at the top of blue body which you screw in or out which then adjusts the spring tension inside the valve.
I think the further you screw it in you harden the spring and thus you get a louder whoosh, if you screw it out you get a more controlled and gradual whoosh as if you are trying to slip out a silent but deadly bottom burp without anyone noticing.
I think the further you screw it in you harden the spring and thus you get a louder whoosh, if you screw it out you get a more controlled and gradual whoosh as if you are trying to slip out a silent but deadly bottom burp without anyone noticing.
13 August 2011, 10:30 PM
#6
Scooby Regular
iTrader: (100)
Join Date: Oct 2008
Location: Planet Earth
Posts: 13,684
Likes: 0
Received 0 Likes
on
0 Posts
ps the exact purpose of a recirculating valve is to allow excess boost to be vented back into the intake system, this allows the turbo to keep spinning whilst the excess pressure is pushed back into the inlet tract where it enters just before going back into the turbo.
The purpose of a VTA or dump valve is to make noise, it literally dumps all the excess pressure out into atsmosphere (hence Vent To Atmosphere), this can cause turbo stall as the turbo has none of it's excess pressure re-entering the inlet and does often give a flat spot.
HTH
The purpose of a VTA or dump valve is to make noise, it literally dumps all the excess pressure out into atsmosphere (hence Vent To Atmosphere), this can cause turbo stall as the turbo has none of it's excess pressure re-entering the inlet and does often give a flat spot.
HTH
Trending Topics
13 August 2011, 11:14 PM
#9
Scooby Regular
iTrader: (5)
Join Date: Aug 2003
Location: Mitsubishi Lancer Evolution 8 RS
Posts: 6,517
Likes: 0
Received 1 Like
on
1 Post
The softer the setting the less boost it will need to build up to dump the pressure! The harder the setting it will need to be on nigh on full boost before it dumps! I changed the spring on my Forge one to a harder one, on normal driving the boost pressure would stall the turbo and cause a 'flutter' sound
13 August 2011, 11:46 PM
#10
Scooby Regular
Join Date: Jan 2007
Location: wales
Posts: 343
Likes: 0
Received 0 Likes
on
0 Posts
is it a turbosmart one or greddy,and it will also depend on boost your running if your runing strd boost then your best setting is soft if your running alot of boost the setting should be soft ,iv used most bov over the years if you can tell me the make i may be able to help more,but as stated bov arnt that clever on scoobys they cause idle problems if not set proply.
14 August 2011, 02:33 PM
#11
Scooby Regular
iTrader: (8)
Join Date: Aug 2007
Location: Swansea.In search of more power!!
Posts: 6,498
Likes: 0
Received 0 Likes
on
0 Posts
If its the Turbosmart one then the entire blue section turns. You adjust it to suit then. You need someone to help you though as you control the throttle and they adjust the valve
14 August 2011, 10:57 PM
#13
Scooby Regular
Join Date: Jan 2011
Location: Hengoed
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
If you alter the dump valve would you have to have it re-mapped?
You would have to get it mapped if you put one on?
You would have to get it mapped if you put one on?
Last edited by Bryanh; 14 August 2011 at 10:58 PM. Reason: added 2nd question
14 August 2011, 11:36 PM
#14
Scooby Regular
Thread Starter
Join Date: Aug 2011
Location: Wales
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
Course not. You can fit an aftermarket dump valve to a scooby no problems.
In fact, it has been said that fitting an aftermarket dump valve helps with the performance of the turbo.
My Scooby is re-mapped with a Prodrive pack (for new) anyhow.
If you decide to get one let me know.....my hubby can fit one perfectly in 30 min.
A Bailey dump valve is a good one to start with. Their not too expensive and recommended by many dealers.
15 August 2011, 04:45 AM
#15
Scooby Regular
iTrader: (100)
Join Date: Oct 2008
Location: Planet Earth
Posts: 13,684
Likes: 0
Received 0 Likes
on
0 Posts
^^^
If you are fitting a VTA then a remap is preferable to be done but not absolutely essential.
If anyone is thinking of changing to an aftermarket VTA then I'd go for a Forge unit as they are much better than a Bailey's which quite frankly are only good as a paperweight.
From experience the best option is to leave the standard recirculating unit on.
If you are fitting a VTA then a remap is preferable to be done but not absolutely essential.
If anyone is thinking of changing to an aftermarket VTA then I'd go for a Forge unit as they are much better than a Bailey's which quite frankly are only good as a paperweight.
From experience the best option is to leave the standard recirculating unit on.
15 August 2011, 07:07 AM
#16
911 C4 pilot
iTrader: (7)
Join Date: Jan 2007
Location: In an Air Cooled Porsche
Posts: 3,578
Likes: 0
Received 0 Likes
on
0 Posts
+1 - Subaru spent millions designing the inlet system on your Impreza, fitting a chav-valve, "for da noizes, innit", is not the way to go. Lots of differing opinion on whether or not they harm your engine, but is it really worth the risk.
good luck!
good luck!
15 August 2011, 07:27 AM
#17
Scooby Regular
Thread Starter
Join Date: Aug 2011
Location: Wales
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
CHAV!!!!!
SPEAK FOR YOURSELF
and PEOPLE DO NOT ONLY FIT THEM FOR "NOISES"
IT DEFINATELY DOES NOT DAMAGE YOUR ENGINE!
THIS CHAV IS LEAVING THE BUILDING......SEE YA!
15 August 2011, 07:34 AM
#18
Scooby Regular
Thread Starter
Join Date: Aug 2011
Location: Wales
Posts: 31
Likes: 0
Received 0 Likes
on
0 Posts
OF COURSE AN UPGRADED DUMP VALVE IS GOING TO BE BETTER THAN A STANDARD ****TY ONE! (COMMON SENSE EH).
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
15 August 2011, 08:46 AM
#19
Scooby Regular
iTrader: (100)
Join Date: Oct 2008
Location: Planet Earth
Posts: 13,684
Likes: 0
Received 0 Likes
on
0 Posts
Why come on asking questions when you already appeared to have answered your own questions?
We are all entitled to our own opinions but when someone disagrees with you then have a reasoned argument/discussion about it; after all we can learn from others.
And please turn the CAPS LOCK off.
We are all entitled to our own opinions but when someone disagrees with you then have a reasoned argument/discussion about it; after all we can learn from others.
And please turn the CAPS LOCK off.
15 August 2011, 08:48 AM
#20
Scooby Regular
iTrader: (32)
Join Date: Jan 2007
Location: brecon
Posts: 2,545
Likes: 0
Received 0 Likes
on
0 Posts
OF COURSE AN UPGRADED DUMP VALVE IS GOING TO BE BETTER THAN A STANDARD ****TY ONE! (COMMON SENSE EH).
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
15 August 2011, 08:52 AM
#21
OF COURSE AN UPGRADED DUMP VALVE IS GOING TO BE BETTER THAN A STANDARD ****TY ONE! (COMMON SENSE EH).
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
15 August 2011, 09:00 AM
#22
OF COURSE AN UPGRADED DUMP VALVE IS GOING TO BE BETTER THAN A STANDARD ****TY ONE! (COMMON SENSE EH).
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
Not my personal favourite, it'll only draw attention to you if you like that sort of thing.
15 August 2011, 10:05 AM
#24
Scooby Regular
iTrader: (8)
Join Date: Aug 2007
Location: Swansea.In search of more power!!
Posts: 6,498
Likes: 0
Received 0 Likes
on
0 Posts
OF COURSE AN UPGRADED DUMP VALVE IS GOING TO BE BETTER THAN A STANDARD ****TY ONE! (COMMON SENSE EH).
Not neccisaraly
THEY DO NOT MESS YOUR ENGINE UP!
Can cause over fuelling and bore wash.
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
Wouldnt touch one.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
Not neccisaraly
THEY DO NOT MESS YOUR ENGINE UP!
Can cause over fuelling and bore wash.
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
Wouldnt touch one.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
15 August 2011, 01:18 PM
#26
Scooby Regular
Join Date: Jan 2011
Location: Hengoed
Posts: 95
Likes: 0
Received 0 Likes
on
0 Posts
I upset (not my intention) the op the other day when I questioned certain quotes on a post re: GRRR Skoda VRX Hater. Don't post questions on here if you don't like or disagree with answers given especially if you think you already know the answer, and don't post stories if you dont like being asked questions on your story telling......simples......No need to throw toys out of prams etc, it makes you look very silly
Last edited by Bryanh; 15 August 2011 at 01:22 PM. Reason: added stuff
17 August 2011, 09:03 PM
#30
OF COURSE AN UPGRADED DUMP VALVE IS GOING TO BE BETTER THAN A STANDARD ****TY ONE! (COMMON SENSE EH).
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
THEY DO NOT MESS YOUR ENGINE UP!
AND BAILEY DUM VALVES HAVE AN EXELLENT REPOUTATION (OF COURSE, THER ARE BETTER ONES OUT THERE) BUT FOR THE PRICE ITS A GOOD MODIFICATION.
I WAS WARNED ABOUT "THESE" FORUMS.
ITS BEEN FUN. SEE YA.
http://www.litchfieldimports.co.uk/s...st.asp?inc=332
Last edited by The Trooper 1815; 17 August 2011 at 09:04 PM.