Exhaust Manifold.

[Ruan]

That's precisely my point... I'm not saying high pressure is a bad thing, but it seems there's an argument that running standard nozzles is a good thing and achieving power at higher RPMs is a bad thing which is where I disagree... You can achieve shorter injections with bigger nozzles at the same rail pressure, but you aren't having to strive for the full 1500bar ALL the time, that's going to cause parasitic loss from the HP pump, you could be making the injections happily in time at 700bar (im not condoning that, but its to prove a point) with bigger nozzles...

But there seems to be some hatred of big nozzles... There seems to be some reputation that bigger holes = shit running which is totally untrue and unfounded... The point I've tried to make is that CHRONICALLY (100hp/cyl) big nozzles at 200bar injection is not an issue, so drop the size a little since you can get away with higher RP and you wouldn't have a problem...