I've just joined the forum and it is brilliant! You've all got some really interesting and valuable information to impart and it is really appreciated by 'newbies' like me.
I've recently purchased a 2004 NPS with the 4HE1 turbocharged, intercooled engine. The truck has 126 000 km on the clock with a Duratray heavy duty aluminium trayback. It is an ex-electricity utility truck, judging from its appearance. In the future (not too distant I hope!) a conversion to camping rig is planned, but at the moment I'm having to use the truck for some highway, even interstate trips a few times a year, and general dirt road, or dirt track four wheel driving.
I'm wondering in a fairly general way, whether anyone has had experience with, or knowledge of IMPROVING POWER OUTPUT on this engine. Has anyone upgraded their turbo installation or in particular, modified the factory unit for increased boost pressure? Is such a modification possible or even advisable? I'm interested in anyone's experience as I don't know of a particular company that gives this sort of advice and I'd like to have a bit more 'oomph' with a loaded truck (GVM 6000 kg) and possibly towing a trailer up to the 9500 GVCM rating. It seems to run out of 'puff' on the hills - it gets there, but seems slow - hence my questions.
Any info or advice would be much appreciated!