peccy

from my Blitz dump valve? trumpet or filter or no attachment at all?, and how much adjustment of the adjustment bolt?

cheers, peccy.

iain atkins

Go stand in a freezer LOL!!!!

Seriously though, i think the chatter thing only happens when the dump valve is removed completely, so the turbo cannot dump excess presure on gear changes etc, which isn't a good idea if you want your turbo to last.

I know Andy.F has done this to his MY93 RA......he usually ends up proving us all wrong!!!

Moles Dad

If its the dv route you would rather take, get hold of ChrisD, he has a dv that chatters as far as I know

Danny Fisher

Peccy, change to a Forge dump valve, and clock the spring a little.

Thats what a few of us have done.

As for running without a dump valve, only do this if you DONT want your turbo to last very long.

Dan

submannz

Chatter is not good for the turbo, means you are not getting rid of enough pressure.

dowser

Danny - isn't what you've done with the spring almost the same as removing the dump valve anyway?

Richard

iain atkins

Yeah basically by tightening the spring you are stopping the turbo from being able to release all the pressure, hence the chattering.


Iain

peccy

tried all the different adjustments, but the sound stays the same wonder if its broken?

Mickle

If you ever want to swop your dv for a brand new forge DV (with red and blue springs, blue gives you high boost chatter) let me know

Trout...

Shimming the Forge dump - if done correctly will get chatter - but it is not from the turbo stalling - it is from the spring being just at the edge of the release pressure.

If you shim it too much, turbo will stall and those nice impellers will be moshing in your engine.

Trout