Do I Run A Bov Or Not?

[09ONE_32]

Here's a simple test.

First, obtain a tennis ball in the opposite hand that you throw with.

Subsequently, go outside your house, find a nice spacious brick wall, and through it at the wall.

Then, inspect the wall to see if there is any damage...

Same principle applies to air hitting the turbo fins....

Yeah we gather the fact that pressurised air won't damage metal compressor fins.

I am much more worried about the shock loading on the bearing cartridge as the wall of pressurised air hits the rapidly spinning compressor

i.e. your simple tests mean shit (thats why I raised you 1 bunny)

Edited April 23, 2009 by 09ONE_32

[Cjmartz2k]

I would just like to throw out there that there are a lot of "problems" in the automotive world that MUST be fixed that like to pop up right after somebody starts making a product to "fix" said problem. It seems like people make a product and invent the "problem" to sell their wears.

[09ONE_32]

I would just like to throw out there that there are a lot of "problems" in the automotive world that MUST be fixed that like to pop up right after somebody starts making a product to "fix" said problem. It seems like people make a product and invent the "problem" to sell their wears.

Like how the sales of bottled water took off after the statistic was released stating that we need to drink at least 2l a day?

[Turbz RB-25]

Yeah we gather the fact that pressurised air won't damage metal compressor fins.

I am much more worried about the shock loading on the bearing cartridge as the wall of pressurised air hits the rapidly spinning compressor

i.e. your simple tests mean shit (thats why I raised you 1 bunny)

To see how compressed air will affect the bearing cartridge, perform the following:

Place a Ping-Pong Ball and hold it with your big toe in the foot you use the least.

Try and throw it at a brick wall.

Sample principle applies to compressed air having a load on the bearing cartridge.

Your bunnies don't mean shit, that's why I raised you a bananna (which is worth 3.34 times that of the bunny)

[joeyjoejoejuniorshabadoo]

TSUT TSUT TSUT SUTUTUTUTUTUTUTUTUTUTUTUTUTUTU

[joeyjoejoejuniorshabadoo]

edit: i really had nothing to contribute but i double posted so i figured i might as well...

[bozodos]

Coolers are nowhere near big enough lol. Gotta love how there's 2 different shades of yellow on those "BT1's"

[GUN_METAL_GTR32]

my best mate works at sabaddin auto in melbourne he reckons for a stockish turbo and medium boost then no bov is ok.

but with an aftermarket turbo and higher boost he always recomends one.

[bombtrack]

My favourite is the VL closest to the camera, has his number plate mounted to the side to ensure that massive cooler gets enough air through the license plate mounting bracket.

[910trx]

its a photo of taxis taken in the late 80's

just kidding...

[stolen_s15]

I would suggest you run a bov (recirc) if you are running and AFM on the car, rather than worrying about turbo damage as nobody can tell for certain if it even causes damage.

[MBS206]

Age old debate that people seem to miss the main physics of...

Blades don't stop spinning... The blades are setup uni directional, that is, spin them one way, they move air, spin them the other, they do 2/5ths of f**k all.

Secondly, the "chopping" noise is the fact that the pressure applied by turbo is less then that in the pipe, so high pressure flows out the cooler pipes towards air filter.

Suddenly, pressure applied by turbo is greater, so some air gets sucked back in. Making a low pressure... This process continues... Making sound waves...

No damage to turbo.

Also, for those stating it causes more lag between gear shifts, it only causes more lag if you keep the pressure source for the wastegate on the IC piping. Run it to the manifold, no issues what so ever.

[Munkyb0y]

Also, for those stating it causes more lag between gear shifts, it only causes more lag if you keep the pressure source for the wastegate on the IC piping. Run it to the manifold, no issues what so ever.

interesting. please explain.

[SLAPS]

150,000km's on the stock turbo running 1 bar with no bov sold with no shaft play then went on to a larger turbo for a good 70,000km's no bov @ 1bar, sold with no issues and now a bigger turbo again for 20,000km's no bov with no issues running upwards of 24psi.

I found it reduced lag on gear changes especially noticeable when putting in around traffic slightly on boost with all - straight off the actuator (pressure source comp housing), with an MBC and now with an EBC.

And... Nothing wrong with the ol' VLT's.

I personally hate the sound of aftermarket atmo bov's. For myself its either a a tight aftermarket recirc bov that doesn't vent until 20psi odd or no bov at all.

VLT's have been getting around with no bovs running close to 2bar since some of you were in nappies.

IMO emissions and drive ability at part throttle is all bovs are for.

Edited April 27, 2009 by TheRogue