LCR Anyone Tried Forge Recirculation and Blow Off Valve. Woosh Noise?

[drvince]

Sounds alright.. Any probs in full atmospheric setup?

Nope, nothing at all.
No fault codes or 'check engine' light.
No performance lost.

Sound is actually a lot louder than can be heard in the video's.

Just disconnected the bottom pipe of the DV007P from the air intake hose.
( and temporary blocked the air intake with a cork and clip, perfect fit )

 

[scoobystiv8]

Alot of people not sure of the split r, as long as the valve is set up correctly it is as good as any recirc only valve, anyone with logs to prove otherwise please come forward?
All the logging I have done on this and other car/valve combos as long as they are set up correctly they are fine.
I am running sports cat, tip, k&n, split r, stage 1 and the car is fine on vag com.
The only reason manufacturers use recirc valves is cost and emmisions/noise pollution.
There are no issues with the maf as long as its set correctly.

 

[drvince]

I found the Split R leaks on all sides. Doesn't have O-rings inside (!).
And I mean : LEAK !

Also, finger-on-vacuum doesn't even hold the piston up, like it should !

You can blow with your mouth in any pipe and you feel it leak like crap.

If I can do it by simply puffing with my mouth, I don't even want to know where
my turboboost goes !!

Try that with a DV007 ...

I felt a major performance-loss with the Split-R

 

[scoobystiv8]

I found the Split R leaks on all sides. Doesn't have O-rings inside (!).
And I mean : LEAK !

Also, finger-on-vacuum doesn't even hold the piston up, like it should !

You can blow with your mouth in any pipe and you feel it leak like crap.

If I can do it by simply puffing with my mouth, I don't even want to know where
my turboboost goes !!

Try that with a DV007 ...

I felt a major performance-loss with the Split-R

Obviously a one off or it wasnt set up correctly. Any logs to back up your opinion?

 

[drvince]

Obviously a one off or it wasnt set up correctly. Any logs to back up your opinion?

They ALL have no O-rings , not just mine.
Piston is a piece of brass, without any seal.

2nd : The boost pressure comes to the bottom of the piston, instead of to the side.
Any boost will lift the piston already

How they would imagine that would work, I don't understand.

 

[scoobystiv8]

They ALL have no O-rings , not just mine.
Piston is a piece of brass, without any seal.

2nd : The boost pressure comes to the bottom of the piston, instead of to the side.
Any boost will lift the piston already

How they would imagine that would work, I don't understand.

The piston has to be raised from the bottom, no o rings. Have you ever seen a piston in an engine with o rings?

They are sealed by the piston being tight seal and operated against the spring under pressure.
The valve wouldnt work with the pressure to the side it just wouldnt move.
I think you either installed it incorrectly or just didnt turn the valve spring up enough.

 

[drvince]

The piston has to be raised from the bottom, no o rings. Have you ever seen a piston in an engine with o rings?

They are sealed by the piston being tight seal and operated against the spring under pressure.
The valve wouldnt work with the pressure to the side it just wouldnt move.
I think you either installed it incorrectly or just didnt turn the valve spring up enough.

Eh?
Have you ever seen a DV007P ?
Or even the original Bosch one, for that matter ??
Try to understand how they work, and you know what I mean.

In a DV the pressure should come from the side.
That is : sideways to the piston, so pressure can not move it.
( the DV007P has 2 O-rings to guarantee a tight seal ).

Only the vacuum-hose on top (!) should pull up the piston,
so pressure can escape from the side (input) to the bottom (output).

In a Split-R, the boost pressure alone moves the piston up and
leaks it away. Because it's coming from below...
Even if it wouldn't, it would leak past the sides of the piston.
It doesn't seal at all.

 

[drvince]

What DV are you running on your car??? it sounds very loud!

Yep, it's awesome !
On video it doesn't even sound as good as it does.
It really is VERY loud.

It doesn't matter what DV you use.
Mine is a Forge DV007P, but that's not what
causes the woosh.
It's because it's in atmospheric setup, not in recirc.
The car makes the woosh, not the DV.

You can even put the original stock Bosch in atmospheric
setup

Simply disconnect the bottom output on any DV from
the air-intake. And you are all set and done !!
There's your massive woosh !!

Remember to block the hose it came from with a cork
and jubilee clip. Or the car will suck unfiltered air
from there.

 

[ForgeMotorsport]

Its all in the design.....thats how it works. no boost leaks , check it with a boost guage

 

[scoobystiv8]

Eh?
Have you ever seen a DV007P ?
Or even the original Bosch one, for that matter ??
Try to understand how they work, and you know what I mean.

In a DV the pressure should come from the side.
That is : sideways to the piston, so pressure can not move it.
( the DV007P has 2 O-rings to guarantee a tight seal ).

Only the vacuum-hose on top (!) should pull up the piston,
so pressure can escape from the side (input) to the bottom (output).

In a Split-R, the boost pressure alone moves the piston up and
leaks it away. Because it's coming from below...
Even if it wouldn't, it would leak past the sides of the piston.
It doesn't seal at all.

I think you will find the boost is from the bottom and released through the side!
Try searching for dv internals and then understanding there orperation.
The pressure in the valve is up through the bottom and held kin place by positive equal pressure from the top pipe. the side pipe simply feeds back to the intake tract.

 

[ChrisJ]

I found the Split R leaks on all sides. Doesn't have O-rings inside (!).
And I mean : LEAK !

I felt a major performance-loss with the Split-R

Yea that sounds like my one i used to have!

 

[drvince]

I think you will find the boost is from the bottom and released through the side!
Try searching for dv internals and then understanding there orperation.
The pressure in the valve is up through the bottom and held kin place by positive equal pressure from the top pipe. the side pipe simply feeds back to the intake tract.

M8 , Then you have mounted your DV007P reversed ?? ...
(it works, but not as intended).

The side pipe is boost , bottom is dump to air-intake !
Definately !

 

[scoobystiv8]

M8 , Then you have mounted your DV007P reversed ?? ...
(it works, but not as intended).

The side pipe is boost , bottom is dump to air-intake !
Definately !

Agreed, have looked and yes it is that way round, appologies.
99% of recircs are the other way round.
Oh well, still going to stick with the split r though.
Cheers
scooby

 

[drvince]

Agreed, have looked and yes it is that way round, appologies.
99% of recircs are the other way round.
Oh well, still going to stick with the split r though.
Cheers
scooby

You can put the Split-R in fully atmospheric setup as well.
Try it and you'll be amazed

http://forgemotorsport.co.uk/media/USASPLTR.pdf

 

[Havok316]

With "setting", you mean the amount of clicks to turn, not ?
Or is there more involved ?

What would you log with VagCom to check it ?

yes setting is referring to number of clicks. If I remember rightly I think I used about 25-30 clicks as my ibiza was revo'd stage 1.

If you do a boost log with your normal DV or even better use a 007p and adjust the settings on the Split-R until you get almost the same result or tweak even more.

 

[drvince]

yes setting is referring to number of clicks. If I remember rightly I think I used about 25-30 clicks as my ibiza was revo'd stage 1.

If you do a boost log with your normal DV or even better use a 007p and adjust the settings on the Split-R until you get almost the same result or tweak even more.

Would you know where in Vag-Com to find the boost ? (to log)

 

[turbin]

yes setting is referring to number of clicks. If I remember rightly I think I used about 25-30 clicks as my ibiza was revo'd stage 1.

If you do a boost log with your normal DV or even better use a 007p and adjust the settings on the Split-R until you get almost the same result or tweak even more.

Ive tried everything between 7-30 clicks on my split R and its chattering just the same after liftoff regardless of setting. Perhaps I have a fault valve..