I have a 1991 CRX with a jdm B20B swap. Its the 1996-1998 spec CRV motor.

I just intsalled a ZEX dry shot nitrous kit and am currently doing a 55 shot. Im curious how big of a shot i can do without blowing my motor.

I have a 75 shot, but im not sure if that is dangerous on my motor or not.

 

stick with what you got now...a 50 shot is plenty for a stock b20...if you head to the track you could always throw the 75 in to make a couple passes but i wouldnt go further than that