I fitted the dump valve last night and its ace

Its very quiet which at first was a little bit of a dissapointment but on reflection its probably ideal for my car as I don't want it to be stupid loud so the subtle Tssssssh is great. Actually I prefer the chatt-t-t-ter on part boost lift-off, it sounds so Of course JB is having a fit but hey an new engines only £4k

Thanks again mate, I really appreciate it

 

*cough*

 

See DV thread - ya git

 

Saxo Boy
Well Done lad.
I hoped my estimated fitting time of 10 mins, hadn't put you off.

Also good to see that when posting for advice. You chose to ignore it and do what you liked.
Shows great strength of character.

Anyways ME CAR blew up after I changed back to a re-circ v/v

Hope this doesn't cause a dilemna


And I'm PI55 on computers

Cheers Steve.

 

I have and always totally respect Johns advice and I know he's probably correct about VTA's being bad news. However, there are lots of people that have run VTA's for ages trouble free and I'm looking to sell at the end of the summer so its a risk I'm willing to take in the short term (crosses fingers). If the car starts to feel/act/behave differently then I'll revert but so far it seems to be pretty much exactly the same (perhaps fractionally slower to get back on boost)

John, if you stumble on this thread why are they bad, what do they do/don't do? Sipie and I were trying to figure it out last night but got a little lost!

 

Hi lads,
I just fitted a Forge VTA on Tuesday, honestly have to say that i'm not impressed...dont notice much difference. I'm running a blue spring at the mo, so may change to the red one and see what happens there.

Johnny

 

Posted on it

 

isnt the bad side something to do with...
it vents to atmosphere - so the mixture will be v rich for a wee bit.. hence more pops..
then.. (this is the bad bit) the ecu goes.. oh look, ur really rich, i had better lean u out...
and then the air reverts to normal just as the ecu has decreases the fuel... hence a lean mixture.. which can be too hot and BANG

or something like that?

 

Where does the recirc d/v vent to though ?? Crankcase ? I wouldn't have thought it would make much difference as long as air doesn't get IN through the d/v.

 

This maybe Bullocks.
But doesn't the DV/V. feed back into the Turbo inlet tract allowing the Turbo to spool down at a more even pace. Therfore not causing a more severe shock loading, when getting back on the gas.
Reducing wear on blades/bearings.

I just made this up.