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Re: 2000 Nissan Patrol 4.2 Diesel

Posted: 01 Feb 2016 15:16
by JoshJ
ricster wrote:Yeah..... you are right.........

.................................... on top of a diesel flatbed recovery truck...... :rolling: :rolling: :rolling: hahaha
love your work man QQQ :rolling: :rolling:

Re: 2000 Nissan Patrol 4.2 Diesel

Posted: 01 Feb 2016 17:23
by Peter Connan
The outlet temperature of a turbo running at 1 bar boost is around 110 degrees C. That gives a specific density of 0.91kg/m^3
Air at the same pressure but 50 degree C has a specific volume of 1.25kg/m^3.

This translates directly to the volume of air you can cram into the cylinders, and thus the volume of oxygen present for combustion.

While I said before that an intercooler has no direct effect on the turbo, remember that this same (increased) volume of air also goes through the high-pressure side of the turbo, spooling it up.

The little bit of reduced friction in the piping between the turbo and the engine is more than compensated by the increase in air volume going through the system.

I am sure this will result not only in higher power and reduced EGT's but also in reduced turbo lag, thus better responsiveness.

Re: 2000 Nissan Patrol 4.2 Diesel

Posted: 02 Feb 2016 08:33
by Wilkie
Thx Peter and Michael very complicated but you guys are the Guru's :thumbup: