Re-Circ Dump Valve Q's

**Bison** · Monday 28th March 2005, 17:05

I was just wondering, what happens if I blank my Re-circ valve without replacing it with a dump valve? will is cause any probs?

The other option/thought is: My mate has a rover 600ti and reckons our turbos are identical, now he has a very loud dump valve which replaces the re-circ valve on his rover where you would normally puit the blanking plate on the T5. Now I want to know is this possible on the T5? On my last T5 i blanked off the re-circ valve and added an extra twin piston dump valve as I know the MAF sensor had something to do with it, can anyone clarify. Basically I want either a nice dump valve or that nice chatter sound, (of which I had both on my Cossie) Any suggestions?

Bison

**siamblue** · Monday 28th March 2005, 18:04

Originally Posted by Bison

I was just wondering, what happens if I blank my Re-circ valve without replacing it with a dump valve? will is cause any probs?

Bison

You know you don't want to do that don't you

Pedro Fandango · Monday 28th March 2005, 19:34

Ross9 will be able to confirm/deny this but i very much doubt Rover use the same Mitsubishi turbos as us

**Wobbly Dave** · Tuesday 29th March 2005, 00:29

Originally Posted by siamblue

You know you don't want to do that don't you

I have always wondered what would happen when the engine ingests parts of busted up compressor blade?

**Bracer** · Tuesday 29th March 2005, 09:30

Originally Posted by Pedro Fandango

Ross9 will be able to confirm/deny this but i very much doubt Rover use the same Mitsubishi turbos as us

No Rovers use Garret blowers.

**Bracer** · Tuesday 29th March 2005, 10:51

The other option/thought is: My mate has a rover 600ti and reckons our turbos are identical, now he has a very loud dump valve which replaces the re-circ valve on his rover where you would normally puit the blanking plate on the T5. Now I want to know is this possible on the T5? On my last T5 i blanked off the re-circ valve and added an extra twin piston dump valve as I know the MAF sensor had something to do with it, can anyone clarify. Basically I want either a nice dump valve or that nice chatter sound, (of which I had both on my Cossie) Any suggestions?

You can't fit a BOV direct to the turbo due to its position. The CBV which would be replaced with the BOV faces the back of the Head and is too close to get any replacment BOV to fit thus the need to fit a blanking plate and fit the BOV else where. The Rovers have there turbos and the front of the heads and the Garret configuration has the stock CBV facing out the right hand side which alows the BOV to be fitted directly to the turbo.

Here is a pic of my old Rover with a tower BOV fitted, you can see it just to the left of the air filter.

Here is a pic of the blanking plate fitted to SAM

And Here is the BOV fitted just before the Throttle Body

Steve

**Bison** · Tuesday 29th March 2005, 11:00

Ok guys thanks for clearing that up, won't be doing that then. If I do go down the dumper route, can you tell me what the difference between a BOV & a dump valve is, I had a twin Piston Dump valve from forge motorsport on my last T5, But it wasn't as loud as I would have liked. Are BOV's louder? do they have a different sound?

Bison

**Bracer** · Tuesday 29th March 2005, 11:22

Originally Posted by Bison

Ok guys thanks for clearing that up, won't be doing that then. If I do go down the dumper route, can you tell me what the difference between a BOV & a dump valve is, I had a twin Piston Dump valve from forge motorsport on my last T5, But it wasn't as loud as I would have liked. Are BOV's louder? do they have a different sound?

Bison

A BOV and a Dump Valve are the same beast just different names.

If you want loud go for the Turbo XS Type R-HFL as did I, its the loudest on the market at 150 db's @ 10 Psi 1 meter away

**Bison** · Tuesday 29th March 2005, 23:03

If you want loud go for the Turbo XS Type R-HFL as did I, its the loudest on the market at 150 db's @ 10 Psi 1 meter away

Where can I get one of these babies from? do they supply a full fitting kit or do I have to get the Blanking plate seperate?

Bison > I want one now!!!!

**Bracer** · Wednesday 30th March 2005, 09:28

Originally Posted by Bison

Where can I get one of these babies from? do they supply a full fitting kit or do I have to get the Blanking plate seperate?

Bison > I want one now!!!!

BOV from here Extreme Psi

The Blanking Plate and the "T" peice you will have to get made. I can make these for you if you dont fancy it your self

**pault5** · Wednesday 30th March 2005, 17:45

don does the full kit including blanking plate. tempted myself!
http://www.kalmar-union.com/

**Bison** · Wednesday 30th March 2005, 22:26

The Blanking Plate and the "T" peice you will have to get made. I can make these for you if you dont fancy it your self

Forge Motorsport in Gloucester do A blanking Plate for our turbos! Got one from them for my last T5, they do a Twin Piston dump valve kit for the T5, Which they supply to Kalmar Union.

It's just the BOV and maybe T piece that I will need.

Bison