I know recently there has been a spate of DV threads concerning probs, oneway valves, Baileys vs Collins etc and before anyone suggests it, I have used the search function.
Anyway, hopefully someone can help. I've recently fitted a brand new Collins DV to my GSi but unfortunately I dont get a dump from it until the engine is over 4000rpm!!
So when i'm booting it and changed gear I get the delighted ppttshh! but anything lower than approx 4500rpm I dont get a dump
I have also tried a Baileys which I have in my garage and that is the same situation too, only dumps at high revs. The boost is normal according to the boost guage.
Anybody have any ideas to get my DV dumping at lower revs?
Cheers in advance