well reading the post about the dump valve for the S1, it got me thinking,

people are now taking them off,

a - becasue there anoying

b - the car runs better

and

c - its seems to make the car feel more powerfull.


so the question is. has anyone done a rolling road with a dump valve on, and then done a second run with out it, and was there any difference in the read outs???

 

Yes I have and the power and torque output did not differ. On the road however the car felt a lot more responsive. and din't keep wanting to stall.

KE-Jetronic does not like air leaks which the DV essentially creates. Why spend cash on something that is not needed and 9 times out of ten causes problems?

I would urge anybody with a dump valve on a KE_jetronic equipped car to do the only sensible thing and file their dumper in their spares drawer

 

Well said

 

i've personally NEVER had any running problems while using a Bailey twin piston and the car felt MORE responsive with it on than with it off!!
each to they're own!!!

 

ive had no probs with my baily dump valve on my rs ive got now and when i had one on my old rs

 

Even if you are in the fortunate minority of people that don't have problems why fit something that does nothing to aid the performance of the car? Just leaves me stumped

 

i just like people lookin at me in disgust when they here it! lol

 

Chatter everytime. Had a guy trip up the kerb as he was so busy staring with a disapproving look on his face

 

i know loads of people that have no problems as long as it's the twin piston Bailey item.

 

I've dealt with 30+ RST's through the club and through frineds. Most if not all ran better with the DV off than on.

If your happy running something that is completely not required then carry on, it's no skin off my nose

 

i havent got chatter though had major chatter on my FRST though

 

Sorry chap I saw the FRST in your sig and assumed that's what you had

 

we could argue all about it all day long about it as in my 20 years of running RS's and since the arrival of the twin piston d/v i've encountered very few problems with them!!
just let them spend they're hard earned cash if thats what they want to do!!

 

my bad, need to get a new sig sorted

 

I like the sound of a dump valve, however they seem to be becoming
unpopular with turbo owners at the mo.

Is the block-the-dump-valve-hole-off-for-a-flutter-noise-mod any better for the engine then?

 

OH DEAR

 

Not really a case of being better but a DV is not required on these cars unless you fit a turbo of T4 size or bigger (not too likely on a CVH) or you are running more than 30psi of boost (again not too likely). All you gain from the fitment of the DV is the gay noise. There are arguements that the fitment of the DV can causepotentialy harmfull overspeeding of the turbo.

RST's do not require one so why bother fiting something that will do nothing to aid performance or turbo longevity?

 

Because some people like the noise! People like what they like!

I do agree though, if it's doing harm, it shouldn't be there. I will have a look into having it removed.

Didn't think the chatter noise on mfi was particularly loud though?

 

Ive never fitted a DV to my S1 And Never intend to either now - i did buy one few years back but sold it before fitting it

Interesting tale though - i pulled up out side a Kwicksave last year to get some cash and there was the usual group of chav's hanging about outside - one came up while i was at cash point and said - "if thats real then why has it not got a turbo?"

Speechless i really was

So it seems to the numpty's about if u aint gow a DV you Aint got the real Deal

Daft Cunts

 

Yeah i had the same thing with my old 200sx, people thought it wasn't a turbo cos it had no DV.

 

There seems to be a bit of snobbery when it comes to dump valves, alot of people will say they make a "gay" sound, but you find that they will rave about "chatter" which also makes a gay sound.

Oh well!

 

This is it mate!

Personal preference an' all that!

The only thing i know that makes a gay noise is Dale Winton!

 

my cars off the road now but i always ran it on a DV with no probs whatsoever, have to say the noise gradually got more annoying and when cars back on the road i'm blocking off boost hose and gettin shot of DV ...

i think the cars alot more responsive without one personally having been in my mates new one

 

I run with one .

No problems and stops the turbo from stalling

 

lol that really made me larf sorry! good one! :gayflag:

 

What complete tosh. THere is large difference between chatter and a DV. Chatter is the sound of the compressed charge air being passed back through the turbo's blades. You don't buy anything to get the gay noise as you put it. With a DV you have actually parted with Ł80 or so to make it sound like a bus.

I'd rather be gay with chatter than gay and poorer with a DV

 

yea but what about the one's who have no noise at all. it does get borin and i like my car to draw attention and a dump valve does that

 

So ur a tight puff then lmao.

Got a dump valve on at the mo , but think it mite come off over winter.

 

Damn right I'm tight. I've not been violated

If you want a DV then have one but most people that know about RST's will more than likely take the piss and you will probably look back in shame once you are older

Got three DV's in my spares box as I went through that phase as well

 

put all 3 on then lol

 

Ermm.....



















No!

 

Made me all paranoid now, just when i was about to splash out on a Godzilla DV!

Mind you i'd rather admit to liking the noise a dump valve makes rather than admitting to listening to Guns 'n roses, any day of the week!

 

lol or beach boys!

 

Your misunderstanding me. You think that you are the mutts nutts with your "chatter" but think that someone with a DV likes to take it up the arse. My point being, they both make a noise when changing gear, and yes they are different, but to the uneducated it is just going to be a noise and your just going to get comments like "look at that twat", people in the know may hear it and get on thier knees and praise you, but for the majority of people you are just going to get disrespectful looks.

And then there is the old debate of how good / bad each are for the car, which will open a can of worms. Chatter is just "compressor stall" which although probablly isnt going to do much harm to your turbo in the short term, if you are running high boost, it's only going to be a matter of time until your turbo gives up the ghost and lets go because of the compressor blades being forced to stall to give that "chatter" sound.

A DV may / may not give running problems, I know of many people who say the car is a lot better without one on, and people who say they have no problems with one. Installing a DV is in no way going to harm your turbo, as its very purpose is to stop compressor stall (which is what gives you chatter) and keep the turbo spinning, hence not putting the turbo under any unneccessary stress. I know there is a lot of debate about whether it actually makes any difference in performance or not, but this is not my point.

A long story short - people like different things. If someone likes there DV then fine, let them keep it. If someone likes chatter, let them keep that too. Just because one person likes one but not the other, doesnt mean they need to try and convert everybody to the one that they like. Its down to personal preference.

 

love a good debait

whats chatter dudes???

 

Jimmyboy you are yet again talking complete bollocks

I don't have chatter on the Escort. It's MFi I would not do anything to the car just to make it chatter.

I have chatter on the Fiesta as it's EFi and I fitted a cone filter. I did not however fit the cone filter for the chatter I fitted it to aid induction.

FACT A DV IS NOT REQUIRED ON AN RST OR COSSIE UNLESS YOU ARE RUNNING OVER 30psi OR ARE USING A T4 TURBO

A DV can actually cause the turbo to overspeed which IS damaging.

If you fit a DV in most cases it's being done for the look at me factor.

Once you can grasp this please feel free to come out of kiddies corner and play with the adults

 

God damn it! Listen to yourself!

YOU'RE ARGUING OVER COMPRESSED AIR!!!

You need to get laid!

 

Hear hear !

 

Calm down dear, it's only a commercial!

You are yet again not reading what I am saying properly!, I am mearly putting accross the other side of the argument, as you obviously prefer chatter to dump valves.

The simple point I am making is, they both make a noise - one YOU like, ony YOU dislike, simple. Doesnt mean one is "gay" as you put it, and one isnt.

Read what I said properly the first time, and you would of realised this. If DV's can cause damage, then it is on a par with chatter which is also going to do damage in the long run, so one is not better than the other in this case.

Also, people may want a noise on the ERST and may not want to go down the EFi route to get chatter, and a DV is the obvious solution.

Just because I am not agreeing with what you are saying doesnt mean you have to throw your toys out of the pram, where both adults and it's good to get both sides of an argument across!

 

i havnt got a dump valve anymore but each to there own, i remeber when i first bought an rs, i didnt want to buy 1 unless it had 1 on !!

i have grown out of scaring the oaps now, but i still see why ppl like em

if everyone was the same, the world would be a boring place