help please

[markus2k13]

Hi I've got a s60 2.0t s I'm wanting a dump valve but some people say no some say yes can people reply and let me know what's best and what's not

Cheers mark

[Jamest5r]

Nope.

[M-R-P]

No - ME7 engine management measures the amount of air in the system at any given time. Any loss to atmosphere will make it think there's a big problem, throw a code, go into limp mode and generally not work very well.

Get a big cone filter and take the insulation off the bonnet for some nice wooshy noises

[markus2k13]

A big cone fitted don't sound very good on YouTube :0(

[M-R-P]

Mine...

[Kingsford G]

Mine...

You have a plank plate,don`t u?

[M-R-P]

No, I had the recirc locked - off. Worked the same way as the blanking plate.

This is with the recirc working...

[Kingsford G]

Really?Is that a stock noise on them?

[M-R-P]

With a cone filter and no soundproofing on the bonnet - yes

[markus2k13]

The first video sounds nice mate what filter you got on like plus what's the recirc and how do you lock it

[M-R-P]

The first video sounds nice mate what filter you got on like plus what's the recirc and how do you lock it

I just had a cheap twin cone filter from fleabay at the time.

There's a 4mm pipe that goes from the inlet manifold to the recirculating valve on the turbo (triangular fitting with a circular bulge and mounted to the turbo with 3 10mm bolts) put a one way valve in that pipe to allow pressure but not vacuum. this will lock the recirc valve, giving the chatter noise you heard.