hello ive got an r33 gtst series2. ever since i moved my wastegate actuator the har has started to fluctuate in boost presure, it will spool up fine but as soon as it hits max boost, 12psi it just flutters, it also does it when i try to hold it at a certain boost, eg 8psi. the bov just flutters.
1st and 2nd gear arnt to bad but it get morer and more unstable as i go through the gears. i adjusted the wastegate beacause it was sitting open about 3. 4. mm
mods include
hdi front mount
dump pipe back 3.5 inch exhaust
gutted stock cat
greddy inlett
tomie afr
supper spark coil packs
ngk r iridium plugs gap .8mm
high flow turbo
gfb bleed type boost controler
3inch inlet hard pipe
boxed pod
drift bov
getting nistune ecu soon
it was a lag machine sinse i adusted the wastegate, now it is responsive as but flutters