Dump Valves on Diesels

[AJA]

What's the story with these on diesels people?

I've had differing views on these; some people say that a performance dump valve can be fitted to the CDTi and some say not.

Will it improve the performance?

[Duncan]

You can fit a dump valve to diesels but there isn't really much point - unless you want to look like a chav!! As Diesels have no throttle valve (Inlet direct to cylinders) you won't get the closed throttle pressure build up of a Petrol Turbo and therefore no gains/advantage. You won't even get much of an increase in the psst sound if that was something you were after.

D

[AJA]

I'm after more Power!

Am I sensing some hostility on the site today or is it just me, anyone?????

[Jamie]

I'm not hostile AJA!

I'm not keen on the idea of dump valves... our cars are too sophisticated for that!! How about Anti-Lag D, could that be fitted to Diesels or Petrol Turbos????

[AJA]

What that mate?

[AJA]

No hostility mate, i think everyone is just trying to get there opinions across .

Must be me then. ;-)

I get to bed early tonight to recharge my batteries.

[Jamie]

Anti-Lag - how it works! : http://www.rallycars.com/Cars/bangbang.html

[Duncan]

Am I sensing some hostility on the site today or is it just me, anyone?????

No m8 - no hostility, just you! Just answering your question for you and advising you not to waste your time or money.

Re the Anti-lag - not much use on a diesel (I believe) as diesels have no throttle valve (Inlet direct to cylinders) you won't get the closed throttle pressure build up of a Petrol Turbo and no point in a dump valve. The turbo in a diesel will have a wastgate in it (different thing to a dump valve).

D

[AJA]

Both Tunit and Diagnostix seem to think that they have a dump valve and that it can be uprated. I think I need to do some research on this.

[Albaz]

I could be wrong but I think Duncan is right here guys. It will make no difference to you diesel guys.