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Thread: Apr recirculation valve or Forge splitter BOV?

  1. #41
    Join Date
    Jan 2009
    Location
    WEst Sydney
    Posts
    428

    Quote Originally Posted by Blitzen View Post
    I have found the Forge BOV to work quite well...I have had it for 14 months now, and have lubed it once(takes about 15min to do). You are right it that it takes some amount of time to find the sweet spot, but I felt I have found it (36 clicks from the tightest setting). I am however looking at getting a Forge 007P for insurance and roadworthy reasons (if I was to have an accident, and the BOV was found, there is cause there to deny the insurance as a BOV dose make a car unroadworthy...And this isn't just for the sound issue, even though the sound from the Forge BOV isn't that loud(well under the 90db legal limit)...Look it up people...).
    The 007P also looks very stock, and this is also what I am looking for.



    1) True...

    2) Um... What???

    B) You have to remember that so long as the engine is running, the turbo is spinning. The movement of the exhaust gas and heat causes the Impeller blades to spin...This in turn is connected by a shaft to a Compressor/Turbine. This compressor is drawing air through the intake to the turbo. This air is then compressed and pushed through the intercooler to the throttle body and to the combustion chamber. It is nearly impossible for air to be lost back through the air intake when the engine is running.
    But you cant say its pressurised? the air cleaner cant pressure anything so whats a puff of air gonna do?

  2. #42
    Join Date
    Jan 2009
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    blankedy
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    4,058
    Can anyone assist me in getting my hands on a Forge Splitter?

  3. #43
    Join Date
    Feb 2008
    Location
    Sydney
    Posts
    2,756
    Users Country Flag
    Quote Originally Posted by Petrina Polo View Post
    But you cant say its pressurised? the air cleaner cant pressure anything so whats a puff of air gonna do?
    This 'puff of air' from the DV is taken into account by the ECU. If it isn't there, this throws out the volume of air that is measured.
    Once air is in the intake duct (lets say the SEAT intake, before your air filter), because the air is contained, it is under some amount of pressure. Even if the turbo wasn't there, the air would still be drawn in by the pistons on there downward cycle(much like when you breath, air is drawn into your lungs by the vacuum created by your diaphragm...). This vacuum is creating an inwards pressure to the duct, filter, and then to the combustion chamber...

    Quote Originally Posted by noone View Post
    Can anyone assist me in getting my hands on a Forge Splitter?
    Try Tim at Rennehaus...Thats where I bought mine from...
    http://www.vwwatercooled.org.au/newf...ad.php?t=19275

    Or, buy it direct from the site...
    http://www.forgemotorsport.co.uk/con...duct=FMDVSPLTR
    "If can't get behind your troops, feel free to stand in front of them..."

  4. #44
    Join Date
    Nov 2008
    Location
    Wembley, WA
    Posts
    325

    Quote Originally Posted by Swatty View Post
    Never heard a BOV on the road mozzy, really?

    I had a hks ssqv on my silvia and loved it. Hardly made any noise on daily drive except when you are giving it heaps of stick and then it was very loud.

    But yeah I agree with gareth, unless the cops are being really picky it's about how you are driving not about your mods. I drove my car for a good 18 months with a bonnet full of illegal sh*t with no permits but I rarely drove like a tool so I whenever I was pulled over they were good about it, didn't even have side indicators or windscreen wipers haha.

    That being said I have known people that have been shafted for illegal goodies for only driving 10kms over the limit.
    Back when I posted this comment I don't think I had actually really listened out for them but since then I have heard one on a riced up Nissan Skyline that dared to take me on but thats a different story alltogether.

    Anyway having run the APR R1 DV for awhile now I can say that is that the performance is beyond what I had imagined. The way it holds boost during shifts and eliminates turbo lag is nothing short of astonishing at times and sometimes borders on lethal. Quite a few times I have entered a corner a wee bit fast and upon changing down gears the boost is still there and you end up pretty much catapulting around the corner when you go to press the acelerator next. Quite hair raising to say the least.

    Anyway the other things I like about this DV that is rarely touched upon is the fact you can install it and forgot about it. It requires zero maintenance due to it being diaphragm based and not piston based like the Forge splitter which requires periodically lubing. It is also said that the R1 functions with a faster response time than piston based DVs.

    I guess in the end it all depends with what you prefer and what you can afford.
    Last edited by mozzzy_2000; 23-04-2009 at 07:42 PM.

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