7th gen nitrous
 

What is the safest amount of nitrous our 7th gen maximas can hold I want to do it asap

CVT transmission? If so, probably not too much - dunno if anyone has tested the limits of the CVT transmission, but that's the weak point. Someone else may know.

You can spray a 75-shot with a single nozzle, maybe more if your fuel supply is up to it. Nitrous plus low fuel supply = meltdown.

Its the cvt. And i know that is the weak point but im curious on the motor what can that hold

Dunno anyone who has sprayed a 7th gen... Anytime you go over about a 75-shot, you need to know what you're doing. Fuel supply, spark plug heat range, type, and gap, ECU ignition advance, A/F ratio, all this stuff at WOT. If you don't know how these things affect your engine on nitrous, you really shouldn't be spraying.

Or you can just add the spray until the engine goes away.

Find somebody who has sprayed one - that's the best source of info...

Doubt the cvt will hold very many 75 shots lol.