I'm currently using a ZEX kit for my Nitrious and I plan to upgrade to a 75 shot from a 55 shot. I know I should buy an upgraded fuel pump before I do that but I was wondering if I needed to buy an upgraded Fuel regulator as well? Is anyone currently running a 75 shot with the ZEX kit? If so, what did you have to upgrade in order to run that shot safely.

 

First of all, try Fuel Pump first because It work for any NOS, Turbo, and Supercharger.. I dont know if the Fuel Regulator and Fuel Injectors help for NOS.. Try Fuel Pump first and if not work, get fuel regulator... Maybe Im wrong.. I had experience for Turbo on Honda Civic and I have no idea why fuel go lean.. SO a dumb guy told me to get fuel regualtor and installed it on my car.. It still leaning.. So I try Fuel Pump and it work.. FInally Im happy with it.. SO try it..

 

I have been running the Zex for some time now...at just the 55 shot though...

I have had the 255 hi-pressure fuel pump for about as long as well, and only recently added a SARD adj FPR...so I do not know if it matters much yet...it is untested in it's current configuration/combination with SC.

I do have a idle fuel pressure gauge under the hood but using the information provided during runs and on the bottle my EGT readings are not abnormal by any means.

 

Thanks for the replies! Right now with a 55 shot I know I don't need a fuel pump and a regulator and it works great. I guess just to be safe I'll try to look for a regulator. I guess I'll keep researching for now. Thanks again.