Yes I am running on Nitrous, dynoed on all my MOD's including NOS made 80 HP over stock. At the dyno time I was running VP motorsport 103 unleaded. 1/4 mile times were 13.06. Many people are asking the same question so below is my little speach.
Also here is a link to my RSX pictures.
http://www.1320motorsport.com/TTMRSX.html
Ok things about NOS on a RSX. First, even a safe direct port system is hard. AEM blew there motor on a 70 shot witch isn't a big shot for direct port. Second I run VP 103 unleaded race gas when I drag race the car and octaine booster when I use nitrous on the street. it's easy I just keep a NOS octaine booster bottle in my glove box. Second We ran a richer fuel jetting on the kit. third there is no way to retard timing with the direct fire system. You could run a piggy back system and retard when running NOS and this would help but the easier solution is higher octane and richer fuel mixture. Last is very simple, you can't run just a single dry fogger, with the returnless fuel system there is also no way to raise fuel pressure. Yes MSD has a unit that will raise the fuel pressure on these systems but only when it see's boost. Nothing really for when it see's nitrous. Maybe NOS will make one someday. So the only way to run this is a Wet setup and tap into the fuel supply. The ECU will read the pressure drop when the fuel goes to the nitrous nozzel and raise the pressure back up to make sure the injectors get the right fuel pressure. Direct port would be nice but with the limitations of the high compression and the ingition and fuel I don't think it's worth the time to drill and tap the manifold. NOS will be coming out with a injector adaptor witch will make it easy to do a direct port, no drilling or tapping. Untill this is available just use a single WET fogger in the intake pipe. And what ever fuel jet they recomend for the shot you are using use one jet larger.
Also here is a link to my RSX pictures.
http://www.1320motorsport.com/TTMRSX.html
Ok things about NOS on a RSX. First, even a safe direct port system is hard. AEM blew there motor on a 70 shot witch isn't a big shot for direct port. Second I run VP 103 unleaded race gas when I drag race the car and octaine booster when I use nitrous on the street. it's easy I just keep a NOS octaine booster bottle in my glove box. Second We ran a richer fuel jetting on the kit. third there is no way to retard timing with the direct fire system. You could run a piggy back system and retard when running NOS and this would help but the easier solution is higher octane and richer fuel mixture. Last is very simple, you can't run just a single dry fogger, with the returnless fuel system there is also no way to raise fuel pressure. Yes MSD has a unit that will raise the fuel pressure on these systems but only when it see's boost. Nothing really for when it see's nitrous. Maybe NOS will make one someday. So the only way to run this is a Wet setup and tap into the fuel supply. The ECU will read the pressure drop when the fuel goes to the nitrous nozzel and raise the pressure back up to make sure the injectors get the right fuel pressure. Direct port would be nice but with the limitations of the high compression and the ingition and fuel I don't think it's worth the time to drill and tap the manifold. NOS will be coming out with a injector adaptor witch will make it easy to do a direct port, no drilling or tapping. Untill this is available just use a single WET fogger in the intake pipe. And what ever fuel jet they recomend for the shot you are using use one jet larger.