Hi all
I am after a bit of information on turbo 4.2 diesel Nissan GQ Patrols as i am planning on buying a td4.2 and i want to either buy one that already has a turbo fitted or turbo it myself however i have a few questions.
Was wanting to know what boost pressure is ok to run on them without majorly shortening engine life or damaging anything as i don't know much about diesel engines. A fellow i work with told me his runs at around 30 PSI and i am just wondering if this is right as turbo's that i have seen in smaller petrol cars run max 15 PSI majority of the time.
Also a mate, who has turboed a few cars, not patrols however, mentioned that sometimes the compression ratio of the engine has to be changed with higher boost pressures. I am just wonder if anyone who has turbo a patrol could enlighten me about this as to whether it is something that needs to be done with a td4.2 or if they have any info on this.
Also the other thing i was curious to know is when doing more extreme 4x4 tracks has anyone ever had any trouble with fuel sloshing around the fuel tank and air being sucked up by the fuel pump. Has anyone had to fit surge tank or something or is air being sucked up not a possibility in patrols?