Forge dumpvalve with chatter :s help

[shayne3k]

Ive recently put a twin piston dv on the evo and i have made sure all pipes and seals are in tact and there are no leaks but all im getting is the sound of a recirc dv.
Im boosting up to 1.2 bar and still no wooooooosh. Ive put a pic below of the setup. Any feedback or help would be greatly recieved.

 

[Evomike81]

Dump valve wants to be where you've blanked off with the blue hose

 

[shayne3k]

Lol im such a div and your sure it will work 100%

 

[Steveyb_evo3]

Lol yeah put it on the I/c pipe not the intake just swap them over

 

[shayne3k]

Like so

 

[Steveyb_evo3]

That's it mate now drive

 

[shayne3k]

Woooooooooop

 

[Evomike81]

 

[EVOIV MJC]

Sound any better now then?

 

[shayne3k]

Yeah a lot better. Its deffo dumping the pressure and very loud but still sounds a little fluttery

 

[EVOIV MJC]

Can you adjust those any.

 

[shayne3k]

Im not sure. The top turns and turns but doesnt get loose or tight. Im happy with it though

 

[EVOIV MJC]

Im not sure. The top turns and turns but doesnt get loose or tight. Im happy with it though

That's the main thing buddy as long as your happy ;-)

 

[shayne3k]

Does anyone know why im still getting chatter on low boost

 

[fq-craigus]

Because there isn't enough pressure to move piston so air passes back through the turbo and out the filter, loosten the screw

 

[shayne3k]

There isnt a screw on it

 

[fq-craigus]

Did it come with different springs?

 

[shayne3k]

Nope nothing, i suppose i could have a play with the spring

 

[fq-craigus]

It's all down to the spring tension, I'm not familiar with this model dump valve, I would be intrigued and pull it apart but that's just me lol

 

[shayne3k]

I will pull it apart later and upload some pics