No dump valve ?
Turbo Mini Forums

Is it okay to run without a blow of valve on reasonable boost like less than 10 psi ? Don't think the metro had one anyway.
Thanks

yeah eapecially if your on the t3 as they are pretty durable.

Would the standard setup be less prone to surge because the butterfly is closer to the turbo comparing to all the piping for an intercooled one?
Are people getting strong noise from their BOV on standard setup ?

At 10psi on a small turbo it's noticeable inside the car, but not outside

I ran my clio at 0.6 bar no dv for 60k on the same turbo.

Drives
-Ford S-max Mk2 Ecoboost
-Rover 100 VVC #2 - track project

Searching is all you need on TurboMinis

Would it be OK to run no dump valve with a high boost gt17?

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

I really wouldnt, the gt17 althogh a great turbo, has a pretty thin shaft, and Ive head of them shearing on high boost stuff.

I've got a cheap ebay universal dv. When I was running 20psi it would dump and flutter at the same time lol. The dv obviously couldn't dump enough at high boost.
I was wondering if I should get anther dv or just do away with it.

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

is the DV before or after the intercooler?

personaly I dont like these DV's with a ring of smaller holes (6mm?) personally i run a recirc one, but without the recirc connected, i havent checked but i suspect one 1" hole flows better than a bunch of small ones.

It's fitted on the plenum. It looks like a forge type dv.

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

Like this....

https://rover.ebay.com/rover/0/0/0?mpre=htt...%2F301847628452

My build thread..

http://www.turbominis.co.uk/forums/index.php?p=vt&tid=542985

if its a piston one pull it apart and check it all moves freely, the o ring on the piston can swell so they stick, diaghram ones seem more reliable.

the standard bosch one is quite reliable isn't it? I got one of Dave from the A35 van. I think Colin uses one on his sprite to

the plastic R/angle one? yeah, good bit of kit.

Can ya change spring in it? I have the one described with smaller holes but when it goes back on road it shall have the recirc valve just not plumbed in, like mentioned above

Edited by D4VE on 17th Apr, 2018.

Ive found that if you havent got the vac pipe on the DV it'll actually open, at about 12-15psi on my one, it needs the boost there to keep it shut.