BOV/DV?

HEy all,

I just had my A3 APR chipped and installed a Nuespeed intake installed, i know the dv needs to be upgraded to a better one after car is chipped, which one should i get? the BOV or the DV?

Also,since i installed the Neuspeed intake, do i have to get the Neuspeed 100% Carbon Fiber Engine Cover too from eurocodetuning? will it damage the engine/car if i dont?

thanks.

quote:

ORIGINAL: audi28XWJ

HEy all,

I just had my A3 APR chipped and installed a Nuespeed intake installed, i know the dv needs to be upgraded to a better one after car is chipped, which one should i get? the BOV or the DV?

Also,since i installed the Neuspeed intake, do i have to get the Neuspeed 100% Carbon Fiber Engine Cover too from eurocodetuning? will it damage the engine/car if i dont?

thanks.

Congrats on chipping your car.   I imagine you have a huge perma-grin on your face now.
 
On the 2006 A3's they used a "B" DV which has since been upgraded by a slightly stronger "C" DV.   I suggest you upgrade to the new one if you have a 2006MY.   There is an additional Forge BOV you can get that works with the OEM DV but all it will give you is a louder blow off sound from the DV.
 
You do NOT need to get the engine cover and nothing will be damaged, etc.   I've contemplated it for the looks, but why spend money for something nobody ever sees except at a GTG.   If I had a show car then I'd buy it, otherwise save your money.
 
Cheers!

Yes, I have a huge grin. But the power scares me a little, my P tires cant handle it. Is the forge BOV good enough or should i get the aluminium DV instead? DV is 100 more. Thanks for heads up, Chef.

quote:

ORIGINAL: audi28XWJ

Yes, I have a huge grin. But the power scares me a little, my P tires cant handle it. Is the forge BOV good enough or should i get the aluminium DV instead? DV is 100 more. Thanks for heads up, Chef.

 
Get the "C" type OEM Diverter Valve.   You can add the Forge BOV for sound if you desire but it has 0 performance gains.   Your car will need a diverter valve no matter what.   I'm not sure what aluminum DV you are talking about.   Look at the link and see the "C" valve I was talking about for a little less scratch then I spent on it.
 
http://www.ecstuning.com/stage/edpd/pagebuild_v2.cgi?make=Audi&engine=2.0T&model=A3&submodel=FWD&category=Engine&subcategory=Intake
 
Cheers!

Get the forge that's my opinion, I have the adjustable one and have it on the loudest mode and sounds nice.  The other sport cars Subaru, mitsubishi have the valve located more to the top of the engine so its louder, ours is all the way in the bootom of our engine.  Make sure you have the right tools or else its going to be more then an hour mod.  Good luck.

Sorry to bring up a old topic, but I wanted to see if the Forge BOV ( http://www.mjmautohaus.com/catalog/product_info.php?cPath=6169_6210_6211_6518_9181&products_id=1281 ) would make it sound like STi's and such.
 
Right now, it's a really low pitched sound. I was just wondering if this would make it higher pitched, like this: http://www.youtube.com/watch?v=HdM2tQ0qVbI (is300, but the sound is what is important! :) )

You're thinking of putting a BOV on a DV system? Sorry, but if I recall correctly, that's a big no no.

Quoted from a different forum:

quote:

The Audi turbo system is a closed loop system by which all unused boost that is spooled during off throttle and gear shifts must be re-routed within the system; it cannot be vented to the atmosphere due to the dependence on the MAF and ECU to properly read and interpret air flow dynamics within the intake tract. Therefore BOV's (Blow-Off Valves) are not used because they create a rich air/fuel condition (i.e. less air to fuel ratio) which will damage the catalytic converter, create soot on the exhaust pipes, and cause occasional misfiring (due to the purged air) which will result in ECU miscalculated timing adjustments and other errors.

Find out where the dv is located on an is 300 , reason why is this if it's located on top of the engine like the sti you will hear it in a louder fashion.  If its located near the bottom of the engine like our A3's it's not as loud but you can still hear it clearly.
 
same as i said before.

It will make it louder, not sure if it will sound like the STi that you are referring to but it will be audible. 

quote:

ORIGINAL: Chef

Congrats on chipping your car. I imagine you have a huge perma-grin on your face now.

On the 2006 A3's they used a "B" DV which has since been upgraded by a slightly stronger "C" DV. I suggest you upgrade to the new one if you have a 2006MY. There is an additional Forge BOV you can get that works with the OEM DV but all it will give you is a louder blow off sound from the DV.

You do NOT need to get the engine cover and nothing will be damaged, etc. I've contemplated it for the looks, but why spend money for something nobody ever sees except at a GTG. If I had a show car then I'd buy it, otherwise save your money.

Cheers!

So any A3 pre-2007 uses the "B" type DV? Which means my Apr-06 A3 would very much appreciate this mod I suspect

I'd keep your wallet in your pocket. Forge are working on a proper diverter valve replacement for the OEM item. To quote them 'Our solution, which is still in the final testing stages, has already provided some initial benefits like quicker spool, less tapering, and an overall raising of the boost curve, improving boost response throughout the RPM band.' Better than a bit of extra noise I reckon.

quote:

ORIGINAL: rich1068

I'd keep your wallet in your pocket. Forge are working on a proper diverter valve replacement for the OEM item. To quote them 'Our solution, which is still in the final testing stages, has already provided some initial benefits like quicker spool, less tapering, and an overall raising of the boost curve, improving boost response throughout the RPM band.' Better than a bit of extra noise I reckon.

The upcoming FSI valve will be compatible with our existing spacers. The majority of our testing has been done using both

quote:

ORIGINAL: rich1068

I'd keep your wallet in your pocket. Forge are working on a proper diverter valve replacement for the OEM item. To quote them 'Our solution, which is still in the final testing stages, has already provided some initial benefits like quicker spool, less tapering, and an overall raising of the boost curve, improving boost response throughout the RPM band.' Better than a bit of extra noise I reckon.

Where did you see this information?

Here http://www.tyresmoke.net/ubbthreads/showflat.php?Cat=0&Board=tuning&Number=1131113&page=0&fpart=1

thanks 

I just thought I'd bump this one.
 
If you check the link I posted ^^^ there is a little more info and some pics. Due for release some time this month I believe.

Here's another link:

http://forums.audiworld.com/a3/msgs/88469.phtml

And it's now available
 
http://www.forgemotorsport.com/content.asp?inc=product&cat=0102&product=FMFSITV

Yep, got mine on order!

I got the tracking info, but it's not scheduled to be delivered until June 6th.   What?!?   That sucks.   I hate waiting for parts to come in the mail.
 
At least I have some more tinkering to do in a while.   This sad, silly addiction.   I love it!!!
 
Cheers!

hey chef let me know if is there any difference between Eurocode and Forge DV

Hi All,

I am new to the Audi community and new this forum.
 
I've flashed the ECU on my A3 with Revo stage 1, is the "C" type Diverter Valve is all I need to upgrade or I will need to upgrade both the "C" diverter valve AND forge BOV?

Thanks

 

quote:

ORIGINAL: Chef

Get the "C" type OEM Diverter Valve.   You can add the Forge BOV for sound if you desire but it has 0 performance gains.   Your car will need a diverter valve no matter what.   I'm not sure what aluminum DV you are talking about.   Look at the link and see the "C" valve I was talking about for a little less scratch then I spent on it.

http://www.ecstuning.com/stage/edpd/pagebuild_v2.cgi?make=Audi&engine=2.0T&model=A3&submodel=FWD&category=Engine&subcategory=Intake

Cheers!

What year is your car?

If it is a 2006 MY, then you need to check and see if you have the "B" or "C" valve.   2007 and on will automatically have the "C" valve.   The later factory valve will most likely be fine.   Do more research before you decide on the Forge DV.   You'll never "need" the BOV, that's only for noise and serves no other purpose in our cars.
 
Cheers!

Chef,

Thanks for your response!
Mine is a early '06 so it probably have the "B" valve, how can I verify? I've heard the Revo stage1 does not need to upgrade the DV, only stage2 does, not sure that's true or not. I mainly looking for reliability, would the forge DV help in any way?

Thanks!
 
 

quote:

ORIGINAL: Chef

What year is your car?

If it is a 2006 MY, then you need to check and see if you have the "B" or "C" valve.   2007 and on will automatically have the "C" valve.   The later factory valve will most likely be fine.   Do more research before you decide on the Forge DV.   You'll never "need" the BOV, that's only for noise and serves no other purpose in our cars.

Cheers!

The "B" DV is fairly weak and just a stage I chip can cause it to rupture.   I would suggest upgrading to at least the "C" DV.   The Forge DV is awesome and will work well and never rupture, but it is a more significant "mod" that your dealer will definitely notice.   Figure out if it is better to try and hide your chip and keep the warranty in tact, or just go for the best fix no matter what.  
 
Cheers!