youll find that having nitrous in a liquid form is only good untill it reaches the Heat of the intake charge,( the power of nitrous is caused from the separation of one element to another element that produces cold oxygen) accually putting in liquid nitrous into the combustion chamber would cause negative effects, such as a thermal shock load on the entier combustion chamber, and the freezing of the water thats in the oxygen, which will also incres as boost increases(PSI)
This is another reason i dont inject large quanities so close to the engine, but Pre IC instead.
Nitrous by itself cannot hurt a piston, but the advanced timming of fuel and nitrous could ignight TOO early and cause a burn before TDC to some degree, on cast pistons and inferiour designs could be the coulpret completly, along with the H.P. fuel stabing the piston as it heats up to creat combustion.....
I belive that it will not be an issue with a true forged piston, similar to what most of Drag racing uses now such as Arias, vinola,wiesco.....
Coating the piston IS a better way to help reduce th chances of melting the piston. My pistons for my d-max are hard anodized, and then ceramic coated to ensure less thermal heat absorbtion and increasing HP potential up to 10%
one that before!
