Turbo plate?

**dydigital** · Tuesday 20th October 2009, 00:25

I have a 850 T5, and someone has fitted a dump valve to my car, The bloke that sold me the car advise me to fit a plate, now the hose that comes out from where the plate would be has been cut (looks like it goes into a boost controler)

can someone advise me what to do? i would like the keep the dump valve but and after some advice.

**cameron** · Tuesday 20th October 2009, 01:02

Can you take a photo of the area ?

There should be a recirculating valve if there is no plate.

Like this ...............

Once this is removed then you would put the forge blanking plate in its place .........

Im not 100% sure on what people do with the hose that goes to the recirc valve once its been removed, i suspect they block it with something or just blank it off somewhere.

Anybody ??????????????

**dydigital** · Tuesday 20th October 2009, 01:34

Yeh thats the thing, I have the valve and the pipes been cut. think someone may have fitted a manual boost controler.

Should i plate it off or connect the two ends of pipe back together?

**claymore** · Tuesday 20th October 2009, 07:36

if you have a dump valve, you must blank off the recirc valve, otherwise the boost pressure will open the recirc as there isn't any opposit pressure from the small pipe to counteract the boost. the pipe that's been cut probably goes up to the dump valve.

**cameron** · Tuesday 20th October 2009, 11:31

What he said

The plates are £23 + Postage from PFS see here

Quite a fiddly job but a 10mm ratchet spanner is your friend

**dydigital** · Tuesday 20th October 2009, 13:40

Just ordered.....

**jt850turbo** · Tuesday 20th October 2009, 16:22

i have a blanking plate, just had it removed and a recirculating valve put back on. anyone want one?

**cameron** · Tuesday 20th October 2009, 16:41

How much mate ?

**dydigital** · Tuesday 20th October 2009, 17:01

Originally Posted by jt850turbo

i have a blanking plate, just had it removed and a recirculating valve put back on. anyone want one?

Why did you take it back off again?

**Jamest5r** · Tuesday 20th October 2009, 17:06

Originally Posted by jt850turbo

i have a blanking plate, just had it removed and a recirculating valve put back on. anyone want one?

If cam dont want it mate ill have it for the mrs car, you dont have the pipe work do you?, im assuming you've taken the d/v off your car

**t5 pete** · Tuesday 20th October 2009, 17:27

The hose that goes into the recirc valve needs to go into the dump valve once the recirc has been blanked off

**dydigital** · Tuesday 20th October 2009, 18:57

Now i'm confused, the boost controler had three pipes....

on my car one goes to the into the inlet pipe near the air flow meter, the other two are not connected to anything.

I assume one used to go to the recirc valve and the other to atmosphere.

is this correct and if so which one need connecting back to the r/c valve?

**t5 pete** · Tuesday 20th October 2009, 19:06

the the hoses from the bcs
Red dot = nipple on compressor housing
Yellow dot= acuator
blue dot= air pipe leading to turbo inlet there is a nipple just after the maf

**p fandango** · Tuesday 20th October 2009, 19:06

Originally Posted by dydigital

Now i'm confused, the boost controler had three pipes....

on my car one goes to the into the inlet pipe near the air flow meter, the other two are not connected to anything.

I assume one used to go to the recirc valve and the other to atmosphere.

is this correct and if so which one need connecting back to the r/c valve?

if your running an MBC the factory BCS (boost control solenoid) shouldn't have any going to it. I would remove the remaining pipe & block that up, even left plumbed into the BCS it will be creating a minor leak (ps the other 2 pipes used, one off the pressure side of the turbo, the other goes to the actuator)

the recirc valve is nothing to do with the boost control, the recirc valve's job is to release the excess boost made from the turbo continuing to spin when you let off the power (ie between gear changes) so as not to stall the turbo as the unwanted air hits the closed throttle butterfly

**jt850turbo** · Tuesday 20th October 2009, 21:22

Originally Posted by jamest5r

If cam dont want it mate ill have it for the mrs car, you dont have the pipe work do you?, im assuming you've taken the d/v off your car

mine was piped so the excess went back through the waste gate, waste gate chatter, no performance just made a sound. My thoughts are volvo piped it there way because there main man engineer, said that was the best way to do it, so i'm going to do what that man said was best. if anyone wants it they are welcome to it!

**cameron** · Tuesday 20th October 2009, 21:26

I'll have it Please

Sorry Jim

Slightly off thread, Jim how you doing with getting the 16t's ?

**dydigital** · Tuesday 20th October 2009, 21:43

Originally Posted by p fandango

if your running an MBC the factory BCS (boost control solenoid) shouldn't have any going to it. I would remove the remaining pipe & block that up, even left plumbed into the BCS it will be creating a minor leak (ps the other 2 pipes used, one off the pressure side of the turbo, the other goes to the actuator)

the recirc valve is nothing to do with the boost control, the recirc valve's job is to release the excess boost made from the turbo continuing to spin when you let off the power (ie between gear changes) so as not to stall the turbo as the unwanted air hits the closed throttle butterfly

Sorry i ment the factory boost controler, I am only running the factory boost controler, i havn't fitted a manual one, I just noticed that the pipes where not going anywhere.

**p fandango** · Tuesday 20th October 2009, 23:35

Originally Posted by dydigital

Sorry i ment the factory boost controler, I am only running the factory boost controler, i havn't fitted a manual one, I just noticed that the pipes where not going anywhere.

tbh mate, if the standard BCS isn't plumbed in the same way as T5Pete has described above, & its not being bypassed to run either a MBC/EBC then i wouldn't be using the car. By the sound of it the boost control pipework has been seriously messed around with by someone who doesn't know what there doing, without a pipe going to the actuator there is nothing controlling the boost pressure which ain't good

any chance you can post a pic of the pics you mean so we can see whats going on?