NO2

[rustyfloors]

Would a 150 shot be safe to use on a Hypereutectic piston?
KB354's to be exact! if so what octain fuel should I use?

[bulletbuilder]

Rusty
It is my experience that KB's are a pretty descent piston. High silicone, low expansion and fairly priced. Hypereutectic pistons are however 'brittle'. They will not tolerate detonation for very long before they break. If you don't have your NO2 supplamental fuel system right on the money, your going to break a piston. And what else? Who knows? Proceed carefully with NO2. Don't start out with the 150 hp jets. Work up to that level. Making sure at each stage, your motor is not going lean anywhere in the rpm range. And don't forget to go a least 1 step colder on the spark plug heat range. At the 150 hp shot, you probably will need 2 steps colder