Praise to my new Dawes valve, best thing ever.

[Dagwill]

Bought my 2004 GU second hand, so never knew how it felt from new. 350K
From previous experience I fitted boost and EGT gauges.
Cruising at 110 Ks/hr boost settled at 4psi , EGT around 450C, economy 7ks/ltr , foot flat 7psi boost EGT when my nerve runs out take my foot off. Over 600C

Finally blocked EGR and fitted Dawes and needle valve,,,, wow, why didnt I do that sooner.

Cruising at 110ks boost settles at 10 psi , EGT 300C , economy 9ks/ltr , foot flat 14psi boost EGT below 500C, depends how long i hold it flat 450 to 500C

[mudski]

Bought my 2004 GU second hand, so never knew how it felt from new. 350K
From previous experience I fitted boost and EGT gauges.
Cruising at 110 Ks/hr boost settled at 4psi , EGT around 450C, economy 7ks/ltr , foot flat 7psi boost EGT when my nerve runs out take my foot off. Over 600C

Finally blocked EGR and fitted Dawes and needle valve,,,, wow, why didnt I do that sooner.

Cruising at 110ks boost settles at 10 psi , EGT 300C , economy 9ks/ltr , foot flat 14psi boost EGT below 500C, depends how long i hold it flat 450 to 500C

Yeah its amazing how well the combo of those two valves work. I'm still amazed to see how a lot of diesel mechanics refuse to use these and rely on ECU control for boost. These two valves will work on any vacuum controlled turbo Diesel.

[10G]

Yep, best mod I've done I reckon, those valves, they made my truck much nicer to drive.