Undezcupra

Francis Seat
Dec 21, 2005
383
0
Leicestershire
My Car is at stage 1 at the mo, i put the standard recirc valve back on today just to see what it sounded like through the induction kit, it makes an awesome Fluttering noise, is this harming anything apart from the standard bosch valve?? i know the fluttering noise is coming from the diaphram valve and NOT the wastegate!
 
means the dumpvalve is knackered, the noise you are hearing is the boost pressure venting back through the turbo, stalling the turbine blades and not doing them any good at all really, bin it and get your forge back on there!