Boost Guidance Needed GU CRD- Progressing thru NADS

[Bidja]

Youll find that 15-16 is the max the ecu will allow on hills etc.
Itll last for a bit but once that time limit is reached and the fuel cant be matched itll throw to limp and kill the fuel input..
So imo wind back to 16 see how it goes, with the needle valve shut.
The crd doesnt limp with quick spool up so you wont have issues with fast spool up.
If it goes into limp still at 16 psi drop back to 15psi.
Im at 15 max and can do the adleiade hills in 5th no issues now.
Tbh i noticed no loss of power going from 18 to 15psi as there was no fuel to match it..

Once your happy with a max boost level that isnt limping then crack open the needle valve to reduce your cruzing boost a bit..

bigguwesty thanks, All good now.
Firstly, chasing the early high boost values gave me an appreciation of what poor performance was about especially when down low - valued lessons learnt)...

With needle closed found boost max of 15.5 (calibrated eye) @ 3500rpm and no limping. Then needle still closed pulled up a hill that is being redressed with a dirt/shale mix & was heavy going and very loose (H4wd / 4th gear max loading) similar to driving in loose sand. No limp. Out on main rd (sealed), Cracked opened needle to where turbo arm just moved off (0.95 turns on needle spindle "ref only"), 12.0 psi at cruise @ 100kph, and boost max 15psi. Under load pulled extremely well and with good accel. One hill/long hall, in the past before any NADS eng would struggle in 4th, now can pull/accelerate in 4th and dropped it into 5th near top. No complaints. To throw in a variable, closed off the needle 1/2 an increment further (ref 0.9 turns now) got the same max boost 15psi and now 13psi cruise boost @ 100kph. Left it at these settings (may play further). Cannot complain eng very responsive, good acceleration and great low down performance. ETs at cruise can run under but mainly at 300/325 - 375 degC load dependant and when moving out solid working/long hauls can push 480 degC. Oil pressure 380 kPa fairly consistent thru out whilst driving.

My Veh has Steel B/Bar, elec winch, steel side rails/steps. Millweld rear steel bar (6mm) with spare wheel dual jerry with axe in behind. Spare whl steel rim 17x8" and tucked behind a highlift jack (near 150kg out back). 3/4 arb steel roof rack and rear draws/fridge.

Adjustments were so positive and achieved stable boost readings, must say thanks mate and I was wondering when my bonnet hold up stick was going to wear out with all the use with valve adjustments yesterday. My needle valve will stay.

In a past life all I had to do was adjust the rack in the inj pump and it gave more juice (b series Dsl 4cyl).