I'm pretty confident that the engine will suck down 30 horse of nitrous all day if the fueling is right and some safety measures are in place. The general safe rule is 10hp/cylinder. The valve springs would be a limiting factor but they're the same as on a zx14, those bikes are happy ingesting 40-50 shots for hundreds of passes. I'm installing an rpm window switch that reads tpms voltage and will not fire the n02 solenoid outside of the window so if (when) I miss a shift, bang the rev limiter, etc... dire consequences will be avoided. Also wiring a relay in which will flip to the nitrous fuel map when the activation (horn button) is depressed. Anyway, seemed like a great idea at the time. I'll let you know how it goes. Ha!