direct port is one fogger per cylinder. Means instead of one being placed on the intake pipe, you usually drill and tap the manifold runners with one nozzle per cylinder. This makes sure that each cylinder is getting the same amount of nitrous and fuel and each cylinder is making the same additional power.
cuz in a normal nitrous setup usually your cylinders closest to the throttle body will get the most nitrous and fuel if using a wet shot. This can lead to imbalance of power amongst the cylinders. This is why when someone usually melts a piston or detonates during nitrous or puts a hole in the valves its usually always on the #4 or 3 or both.
My brother was running a 75 shot wet shot on his svt focus. Ran great until he misshifted with the throttle to the floor pounding on the rev limiter. On those it cuts both the fuel and spark so the nitrous is triggerd by wide open throttle so a crap load of nitrous was spraying into the motor with no fuel by the injectors and no spark then all of a sudden the spark comes back and bam, Put a nice pea size hole in the intake valve on the #4, and burnt the #3 intake valve to a crisp. No damage to the pistons at all though just the valves.
Had to have the head rebuilt. Thats one thing you dont do when you run nitrous is miss a gear with the nitrous still spraying. Not a good thing at all.
cuz in a normal nitrous setup usually your cylinders closest to the throttle body will get the most nitrous and fuel if using a wet shot. This can lead to imbalance of power amongst the cylinders. This is why when someone usually melts a piston or detonates during nitrous or puts a hole in the valves its usually always on the #4 or 3 or both.
My brother was running a 75 shot wet shot on his svt focus. Ran great until he misshifted with the throttle to the floor pounding on the rev limiter. On those it cuts both the fuel and spark so the nitrous is triggerd by wide open throttle so a crap load of nitrous was spraying into the motor with no fuel by the injectors and no spark then all of a sudden the spark comes back and bam, Put a nice pea size hole in the intake valve on the #4, and burnt the #3 intake valve to a crisp. No damage to the pistons at all though just the valves.
Had to have the head rebuilt. Thats one thing you dont do when you run nitrous is miss a gear with the nitrous still spraying. Not a good thing at all.