[Badbubba]

Originally Posted by 05SilverStreak

Yes that is the system. So now that you see that, and what the instructions tell me, that is why I am thinking I can get away with what I stated earlier. I really should have just posted that earlier and saved the guesswork. Thanks BadBubba. Ok so now that we know this, lets say the safest and easies way to start with the 75 shot would be what? It only recommends pulling timing in excess of 100 shot. I know that would be safer, but I dont want to have to change tunes to use the nitrous, I want to be able to use the 100 any time and the 150 at the track. So if anyone can tell me, would running around full time on a nitrous type tune take performance away from daily driving on the motor? It seems that running full time with 2 step colder plugs and 4 degrees of timing pulled all the time would hurt everyday performance while not on the bottle. So there is my goal, to be able to use at least the 100 anytime and the 150 with a custom tune at the track. Any more thoughts? You guys have been great.

To be on the safe side, I would pull timing on any shot. That's just me. Get a timing retarder, it only pulls timing when activated, such as when you would press your spray button or from the output of the window switch.
If the system can accurately "trick" everything to add the correct amount of fuel, then you should be fine. Have your shop datalog a run and review the log. If the afr is off, then your going to need to tune or get a wet system so that you can make adjustments with the fuel jet.
If you want to keep just a nitrous tune, it all depends on how many and how much the parameters need changed as to how it will run when off the bottle. You may not or just slightly feel the 4 degrees pulled and very little difference, if any, in colder plugs. From my experimenting. You have an L99 though, so ?? Also, sounds to me like your going to need a bigger bottle, you'll get about 5 or 6 quarter mile runs on the lower shot. Should also have a bottle warmer for consistant pressure. That can affect afr on a wet system, not sure about a dry system. Depends on how well it "tricks". But low bottle pressure will affect performance.