Dump valve// no dump valve// aftermarket dump valve// standard chatter?

yo peeps hopefully i make sense

i have a mk1 uno turbo which i boaght about 3-4 months ago yadyyuda ,

when i got the car i drove home and been to a few cruises/rallys ect been perfectly fine

whilst driving the car its been very nippy and pulling through all gears ect ect
and it still goes well now, 

but as i have just changed the clutch i am getting rid of all niggles

whilest i was clambering around looking for stuff to tidy up, i thaught to my self what is that?



the big pipe is the pipe that goes from the air flow meter to the turbo

so i pull this strange looking thing out and find that its a bit of a hosepipe fitting, 



so anyways im still clambering around and find this



i realise that the gold T thing thing is a bleed valve to make the turbo stronge or summin, so i rip that out because i want my turbo to last and i have no clue what they have set this thing to

my main concern is that my car has no dump valve atall so how is it dumping?

i have been driving this car over 300 miles and its been fine, how isit fine without a dumpvalve?

what i want is my car to be normal and reliable and sound nice , why is this hosepipe fitting blanking off this hole

what would you guys advise to do?

i want to make it all nice and strong i dont want odds and sods blocking holes lol

bleed valve is to turn up the boost, mk1 runs 0.6 bar  standard

when fitting a dump valve that hole in the intake pipe is blocked off as the standard valve recirculates back into the intake,

you dont really need a dump valve, I've taken mine off there a bit old school and chavy lol

if yours is making a noise without a dump valve it will be the turbo stalling and air coming out of the air flow meter

the only noise i hear from the turbo is when i let off the throttle and its a nice chatter

but my main question is, why is that thing blocking off that hole whats meant to be there?

are you on facebook mate?

i would personally get a dump valve as i like the sound of them lol and a proper alloy blanking plug or two and blank both ends of as st1allstar says you dont need one a dump valve its all personal taste really the bleed valve should of been fine if you set it to 1.0 bar

i've just said mate the hole is blocked off because the standard valve re circulates air back into the intake, where as a dump valve vents to atmosphere,

someone has removed the standard valve (and blocked that hole off) and fitted a dump valve, however if you have no dump valve and no standard valve then that hole needs to be blocked off

yes im on facebook but hardly ever go on there, best place for advice is on here

if you have no dump valve at all you will probably have two holes blocked of one to the standard valve and one from as st1allstar says the one in the pic is where the standard valve goes

if i remember correct when it was on ebay the other side was blocked of with a blue bit of hose and a bit of what looked like broom handle this is where a after market dump valve would go but if you want witout a dump valve at all i would get a proper blanking plug for both sides

if you want a dump valve i have one for sale

right i see, so what was the point of the original dumpvalve that came on the car when sold from new?
and without the dumpvalve where does the excess air go? out the air flow meter? thats strange isnt it lol?

and like you mate i dont like dumpvalves either they do seem a bit oldschool, i much prefer the chatter/wastegate noise

also sorry for keep asking questions but i have seen these on ebay

http://www.ebay.co.uk/itm/BOV-Turbo-Dump-Valve-Alloy-Blanking-Plug-Bung-25mm-/290567740626?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item43a72fdcd2

do you know if that would be the correct size?

cant remember to b honest the size mate there either 25mm or 21mm if i remember correct so if it was wrong u could probably squeze it in anyway

Find an original pipe and fit something like this

  http://www.ebay.co.uk/itm/Forge-Motorsport-FMCL007P-Golf-Seat-Audi-1-8-turbo-recirculating-valve-dump-/161045694183?pt=UK_CarsParts_Vehicles_CarParts_SM&hash=item257f1246e7#ht_282wt_1399

that basiclly the same as the standard recurculating dump valve mate in standard form a pipe will run from the blocked of bit the one where the blue pipe is to that then that goes into where it was blocked of with the hose pipe end hope this helps

Go faster adjustable blanking plug.. Offers invited

charliemk1 wrote:Go faster adjustable blanking plug.. Offers invited

I would always run a dump valve on any turbo'd car - if you don't want the 'TSSSSCHHH' sound get a recirculating type, such as the eBay link posted above, that fits and operates in the same way as the original factory fitted unit rather than venting to atmosphere.

not my style mate , wrong colour i prefer the racing red, 
also that one looks a bit big for a 1.3 i mean thats probally ideal for summin like a skyline?

Car had a aftermarket dump valve when i sold it on. I think it was a forge diaphram type but someone may have taken it off as the spring goes weak over time causing it to leak on boost.
Never had a bleed valve on it either when i owned it. If set too high this would of helped wreck your clutch.
Does it still have a digital dash? I was going to fit a new aftermarket boost gauge as the standard gauge is 26 years old and might be reading incorrectly.
Try both types of dump valves recirc and atmospheric as there are loads of used ones out there. If you don't like them chuck them on ebay.

Loving the garden hose attachment mod, that's got to be good for another 20bhp

No such thing as wastegate chatter lol. Chatter is when ur throttle is shut the excess boost is being forced though ur turbo and stalling it. so your doing more damage! Wont be long and you be replacing turbo seals! Old school cars need old school dumpvalves!

You dont need a dump valve unless your running crazy boost. Loads of cars come out the factory with no recirculator fitted, RS Escort/Fiesta etc etc. I run one of my old Uno's for years without any valve and never broke the turbo.

I'm running my lancia engine with out one.