I was talkin to someone and they said they wanted to put a BOV on a diesel. Has anyone done this, if so what are the benifits? TIA

Paul

 

What's a BOV?

 

A blow off valve. There used on alot of cars with turbos instead of a wastegate.

 

BOV= Blow off valve
Helps protect the turbo from barking when you lift the throttle quick



Randy

 

Ok how hard is the installation, how much, and what do you do with the wastegate. TIA

Paul

 

As far as I've read/heard, there hasn't been much in the way of these on our trucks. Blow off valves actuate by a difference in pressures, like on the turbo side of a throttle body and the engine side. When getting out of the throttle on a gas engine, the butterfly in the throttle body closes, pressure builds between the turbo and butterfly, and on the other side, vacuum forms. But since there is no throttle body on a diesel, there won't be a pressure differential like this.

A BOV will help with turbo bark by releasing the intake air instead of trying to backspin the compressor wheel when getting out of the throttle. Barking the turbo puts a lot of stress on the shaft, and is a cause of failure, especially in turbo's like the HX40, which has the same shaft as the HX35, but larger turbine and compressor wheels. A blow off valve is also said to help spool up between gears, since the turbo will keep spinning instead of stalling when getting in and out of the fuel.

 

Ya, what he said
http://www.bd-power.com/ram/product....boGuard&tt=ram

 

bd is the only ine I know of who has a kit. it is microprosessor controlled so you are not relying on the pressure difference to operate it. most are actually pulled open by vacuum only, so obviously will not work well on a diesel.
It also has nothing to do with a wastegate.

 

Didn't realize there was a BOV for a diesel app out. I also didn't realize that 3 other people had responded in the time it took me to write that out.

 

how does that tial sound on your truck, we run them on our race cars, but Im yet to hear one on a truck

 

Kindove like PiSsSsSsSs best thing I can compare it to is the sound of a air compressor relief valve

Randy

 

The sound depends on the boost level.

It sounds decent at 35-45lbs. BUT, it sounds WICKED at 95lbs on my old twin-turbo truck.

McPherson which TIAL do you run on your race car. This on is a 50mm. Is yours the same model or different.


~Wes~

 

could anyone locate a sound file of what it sounds like... my turbos bark all the time when im letting off the throttle and i think this would help a lot....

 

http://www.youtube.com/watch?v=pgZ9JAU9avw

Go to 40 seconds...He's got the same BD BOV in his common rail