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Discussion Starter · #1 ·
Does anybody know what type of metal the piping is between the throttle body and the turbo..??? I am looking into a blowoff valve for my car, and i need to know so i can buy the correct one. I was told it could either be steal or aluminium or possibly composite... For the 2001 t5 model

Thanks
SPencer
 

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It is plastic and it isn't really nessecary to install a BOV because there is a recirculating BOV in the compressor housing already.
The car doesn't really respond well to two BOV's........
I tried on my S60, I bought a second pipe from the IC to the TB and installed a special plastic T piece.
I used an adjustable Blitz BOV but it had to be set almost completely closed to get the thing working 99% and that 1% left really bugged me on higher speed/RPM.
The throttle became VERY sensitive.
If you want to disable the standard recirc. valve you would have to take it out of the turbo and block it to make it 100% effective.



Edit: If you want the sound you could opt for an open air filter (cone?) but you would have to remove the airbox.
This is a picture of one but the MAF was disconnected at that moment.
I checked inlet temp's and without any shielding it didn't run any higher in temp's compared to and airbox except for a small moment when the car had run idle for a while.
You could fabricate a shield on the left side of the filter.



[This message has been edited by Johann (edited 07-20-2002).]
 

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Discussion Starter · #4 ·
I was really looking for the psssss sound that you get from a BOV when you shift gears... Thing is with the intake, I was looking for a spot that had cold air coming in, but i really couldnt figure out a good place. The only option would be through the bottom driver side fog light, thats if i take it out, only downside would be a lot of piping which could screw with the responce.... so... ne ideas?

~Spencer
 

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quote:

Originally posted by Johann:




[This message has been edited by Johann (edited 07-20-2002).]
Damn, Johann!!! That's one long-a$$ air cone! Are you using it? If yes, does it really complement the upgrades you have done to your S60? Meaning, does it contribute to better response and does it help in providing more power? Is your idle even or rough?

Thanks,

Yannis
 

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quote:

Originally posted by GrecianVolvo:
Damn, Johann!!! That's one long-a$$ air cone! Are you using it? If yes, does it really complement the upgrades you have done to your S60? Meaning, does it contribute to better response and does it help in providing more power? Is your idle even or rough?

Thanks,

Yannis

Yannis,

It gives good power but so does a drop in filter.
Once driving the air is cool enough, only when stopping at a traffic light the temperature goes up.
For now I took it off because I received a new chip (again) and always change filters to see what the result is with both filters but the difference isn't very much but the sound difference is.
The green one produces extreme sucktion and BOV sound, so much that I do not always like it.
 

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quote:

Originally posted by NJ850N/A:
How do you take out the in-turbo bypass valve? Any special tools needed? Also, what do you mean by blocking off, Johann? I am looking into doing something like this also.
I post some pictures of the valve later because my 19T turbo (NEW!) has a leaking valve :)
I took the one of the 16T so I can make a few pictures before installing.
It looks like you can replace the valve with a plate/seal to close it permanently.
 

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quote:

Originally posted by Johann:
Here we go

I made a sample plate today and decides to start a tuning company called DAIKO

I was surprised by the amount of people out there trying to do BOV and didn't even know where's the factory bypass valve is. Then again a lot of people out there are just doing things without doing much research on them. The worst crowd are those who didn't know the difference from bypass valve to wastegate and passing on wrong info on the Net.


A picture should tell a thousand words. Just be glad that there are still people like you and Charles Linden who take pictures of these things to inform people before they jump in and start doing silly mods.
 

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quote:

Originally posted by The_one_n_only:
I was surprised by the amount of people out there trying to do BOV and didn't even know where's the factory bypass valve is. .
I heard a nice story about a guy who wanted to have his Audi TT (225) tuned.
He brought a pile of money and told the tuner to put all the available gizmo's on it.
I think the car did around 250-260 engine HP and the guy drove away with a big smile on his face.
After a month the tuner met the guy somewhere and asked how his car was doing.
The answer, "not to well because it has been back to the dealer a few times for a problem but the dealer can't find a solution"
The tuners asked what the problem was and the guy said, "Well, there's a big WHOOSH coming from the engine every time I let go on the throttle........ "


[This message has been edited by Johann (edited 07-23-2002).]
 

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quote:

Originally posted by NJ850N/A:
Johann,
That looks perfect, can you make me one too? I can send you the money via paypal.
You want it free to air or recirculating...


Changed the BOV today, pffff what a job.
What you need is a 10 mm wrench and a little Japanese guy with little hands.
The type of guy fitting under a lowered S60 to remove 1(!) screw.
The BOV is mounted with 3 screw and two of then can be reached from the top after removing the heatshield and the turbo to IC tube.
To take it out is easy but to get it in again with my big claws wasn't that easy.
It took a lot of patience, and skill!

I had to lift the car to reach the lower screw but I could replace the wastegate pressure hose at the same time.

 

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quote:

Originally posted by NJ850N/A:
Johann,
That looks perfect, can you make me one too? I can send you the money via paypal.
Now now, before you start paypaling people off the Net, ever think about doing that mod yourself. It's seriously not that hard, I know you got lots $$$$ to burn, but wouldn't it be more fun try to make that work yourself or get it done locally?
They don't exactly offer off-the-shelf performance kit for your new ride like your scooby, but don't go around just blowing off cash like that when you can probably tackle that yourself.
I know you should be able to trust Johann and all, but not sure if he's doing all those things to make money. Man....Hai, just try DIY once awhile.
 

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Kai,
Man, siu boon, how do you know I got a scooby? Mark told you?
Well, I asked Johann if he could make me one is because since he got one that works already, I don't have to go around and ask people if they want to do it.
Johann,
I am thinking about putting a 100% atmosphere valve on the car, so I will need that spot of the turbo completely sealed.
 

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quote:

Originally posted by NJ850N/A:
Kai,
Man, siu boon, how do you know I got a scooby? Mark told you?
Well, I asked Johann if he could make me one is because since he got one that works already, I don't have to go around and ask people if they want to do it.
Johann,
I am thinking about putting a 100% atmosphere valve on the car, so I will need that spot of the turbo completely sealed.
Like Kai said, it is very easy.
You can use a 3 mm stainless steel or aluminum (5mm?)plate.
Once you take the standard BOV out you can copy the outside shape of it on the plate with a marker and take over the holes (ref.diameter 83 mm, 3 X diam.6.5 mm @ 120 degree)
Drill the holes and cut, shave and polish the outside shape until it looks like a real aftermarket mod

Make sure that the surface touching the BOV area on the turbo is absolutely flat.
Onece finished use a universal kind of gasket (seal?) and use the plate as a mould to make the gasket.
If you use thicker aluminum make sure that you have 3 longer M6 screws in stock to replace the original ones.
You see, very easy and only a couple of hours work at the most.
 
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