Quote:
Originally Posted by I am me
How does putting hot exhaust into the intake help keep the engine cooler?
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Exhaust gas is a ready source for inert gas to reduce oxides of nitrogen not a heat source. Some engine use an EGR cooler , other long runs of piping.
NOx is produced when nitrogen and oxygen are heated to high temperatures causing them to fuse.
On a gas engine, EGR can actually increase efficiency at light throttle by increasing dynamic compression ratio. At light throttle / high manifold vacuum, there isn't much air to compress so dynamic compression ratio drops. If you pump in a gas that does not burn or oxidize, it fills extra space increasing dynamic compression ratio.
On a diesel I'm not sure there is much to gain other than reduced NOx .
Quote:
Originally Posted by I am me
Is there anyway to make the turbo louder? I loved how on my dad's old power stroke you could here the turbo wine right above idle and I'd like my truck to sound similar if possible
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You are not anywhere near that stage yet, there is still much to be done just to get the truck running.