dump valve/ blow off valve

[joeishmather]

anyone got a dump valve on their 1.5 dci? im thinking of putting one on mine, is it a big job and fairly complicated??

thanks in advance

[joeishmather]

just to be clear, im wanting a blow off valve, to get the noise when changing gear!lol

does the car already have a dump valve? will i just be able to change that for a blow off valve??- like the 225?

[joeishmather]

like in this link.. http://www.meganesport.net/dumpvalveguide.htm

[joeishmather]

anyone??

[davelowe]

This is an interesting question - not least because with a variable vane turbo as fitted to my car, you do hear a whoosh noise when shifting gears quickly. Even so, I don't think the diesels have blow off valves and mine sounds slightly odd under heavy load but low rpm, almost as though there is an overboost situation but not compressor stall, only something like it (turbulence?). Basically what I am saying is that I don't understand how the system works. I've studied the online diagrams - I would be interested in any explanation.

Sorry to not be of much help.

[joeishmather]

thats about where im at, apparently some diesels have a type of stock dump valve which can simply be swaped for a new one which will perform better, but as i have had no experience with them im needing to be pointed in the right direction!lol

[R55VYS]

derv doctor about 300 sheets and a drive down south or north, east west depending on where you are

[joeishmather]

yeah heard of them, mates gona use them they quothed him £295 fitted,

really wanting to DIM (do it myself tho!)

[R55VYS]

to be honest its not a straight forward job like on petrol turbos, its a chew on and although they are functional they are still electronically controled i think, im sure someone on here has one.

[joeishmather]

a chew on??

[R55VYS]

a chew on??

A ball ache, hard work, not to be undertaken by a novice type job, it involves welding a pipe onto your inlet pipe i think then farting on with some electrics.

[joeishmather]

ahh, thats no good!

i'll have to get saving then!lol