How big can I go?

I have sprayed 150 before, but I am building a motor that can withstand a bigger shot. What besides the fuel pump do I have to do? timing?

Thanks,
Benji

your question is sort of open ended. When building a nitrous motor you have to think about off the bottle. The more things you do to work with the nitrous the better results you will have with it. It is going to be a trade off with n/a because of the heads, cam, etc that will the best with the bottle will not be the best off of it. If you only looking to have the motor handle a 200 shot then buy some forged pistons and good bolts and many some bearings. Tell us more of your intentions with the car and better advice will be gave to you.

No, trust me, it can handle it. The motor is about built, completely forged bottom end, custom grind cam ect. Just want to know what else besides the fuel pump I need to mess with to spray a bigger shot.

Benji

You basically have to balance how big of a shot you want to run, with how much timing you want, and what octane fuel you're going to run.

Well, is there anything I can do about the timing? Can I use a timing retard box or something? Is the timing the only thing besides fuel delivery and octane I have to worry about?

Thanks,
Benji

get a msd box to pull some timing and run high octane gas. If your bottom end is forged then I wouldn't be afraid of a 250 shot with some timing pulled, 100+ octane, and a good intank pump. A progressive controller would help the motor slowly take the hit of nitrous rather than a direct 250 shot. Look them up and read about them. you can control them with a palm pilot. The NX one is dope.

How many timing degrees would I have to retard to spray 250?

Thanks,
Benji