:no:
What yo need to start doing is forget about what you see in movies and learn it all over again, LOL j/k bro.
Basically the little button you see in the movie is the perfect example on how to blow you motor. The RPM window switch will do all the work for you. You can set it to deploy at a specific RPM range. YOU DON'T HAVE TO PRESS ANY BUTTONS!!!!!
You can set the window switch to spray from 3000rpm all the way up to 8000rpm on every gear. This way you have more control over the spray.
Oh and...
NOS = Nitrous Oxide System = a Brand
