people talk about NOS in shots but how much is actually a shot? also, could somebody elaborate on how nos works?

 

cold air gets induced into your intake track somewhere along the line, super cold dense air + gas = bigger boom

a shot is a term used for spraying n2o at some point, a n2o setup to spray 35hp worth of n2o into the system is a 35 shot, one setup to inject 50hp into the system is a 50 shot.

a dry shot is when n2o is injected in the air intake no further than 6 to 8 inchs from the throttle body with no additional fuel added, a wet shot is the same but there are 2 jets that spray....one for n2o and one for fuel.

 

The best full explenation of n2o is located here: http://en.wikipedia.org/wiki/Nitrous

one of the key things i did not know for the longest time was that n2o its self is not flammable!