Originally posted by warmonger:
To me that depends on the duty cycle of the injectors before you add the nitrous and how much room you have to play with.


There in lies the problem for returnless cars.

Keyser stated the limit of the 19lb injectors was ~225FWHP when he was doing testing. Being as you can't just raise fuel rail pressure you are limited to the PCM's control of the fuel pump and max injector pulse width.
Now you can get a chip that alters the PCM's control of the fuel pump. (I've seen all the tables - it would not be impossible to tune it for nitrous - one could use a wet kit too)

However 225FWHP is just a small shot of juice away without it.

I know VenomSVT (when he had his) had serious problems running more than just a small dose of nitrous with the VCN-2000.

Also jumping to 24lb injectors would be serious overkill the other 99.9% of the time you are not running juice.

2000 SVT #674 13.47 @ 102 - All Motor! It was not broke; Yet I fixed it anyway.