Does a dump valve work on a diesel engine?
 

Does a dump valve work on a diesel engine?

Thanks for your replies.

explain dump valve to me???


a run away diesel can be choked off ONLY by removing the air


air cut off valve works great and is manditory for pullers

a dump valve or blow off valve like on a petrol engine.

A gas engine has a throttle body and a throttle plate.During shifting the gears the throttle plate closes and restricts the airflow. During that moment the BOV opens to get rid off the excess pressure, which could bend the throttle plate.
A diesel has no need for a throttle body or plate- so there is no reason for a BOV.
There is only a wastegate- to get rid of the excess pressure which would damage the turbo

Actually A blow off vlave can be of use on a diesel. It it used to prevent barking the turbo when the throttle is suddenly lifted. However on a diesel it uses drive pressure to keep it closed instead of vaccum to pull it open.

And actually your new emissions friendly diesels have throttle plates. FYI.

Would a regular BOV work or would you need a different style for a diesel. Where would you mount it? I just installed an external BOV on my buddies Neon SRT-4, we put it on the up-pipe between the intercooler and the throttle body, where would you put it on a diesel? Same place?

they are specific for diesels,

You'll need a piston style BOV. The Diagphram types won't stand up to the heat from the DP line. You can mount it anywhere you feel like. It doesn't make much of a difference. As long as it is between the Turbo outlet and the head you'll be good.

You'll need to drill a hold in your exhaust manifold so you can run your Drive Pressure line to the BOV.

some factory diesel engines use these and it is a good idea also. it will eleminate turbo bark, decrease turbo lag and prolong turbo life. most installs are between turbo outlet and cac

You'll have to explain to me how it does that^

I think he's confusing a Wastegate and a BOV.

some sounds really cool too :U:
i think BD sells them

The BOV that BD sells is actuated by the TPS ( or apps depending on the year of your truck) , and is quite expensive.

you must put on a video clip of how it sounds it would be interesting to hear a diesel make the "psshh" sound when clutching

It's a 3 year old thread but I'm sure somebody will post a video any second now :w2:

:c:

See I told you :tu:

lol :c:

Those do sound cool though :yeah: