I have a Zex Wet Nitrous kit running 100shot (w/S-AFC untuned, step colder plugs and bolt-on's). After feeling the 100shot jets for awhile now im looking for more hp. How big of jets (what shot) can i go before needing an upgraded Fuel pump? And even then do i need anything else to support the added hp (bigger injectors, etc). Im looking to run the most shot with the safest setup possible. Any comments would help. Thanks!

 

well a hundred shot is a nice shot if the bottle pressure is right. any higher and you will just be spinning more on the street.

if you want to go past 100 you will need something (utec, EU, etc) to retard your timing. this is the key with nitrous and doesnt need to be overlooked.

the rule is 1.5 degrees per 50 hp

i am running -5 degrees with a 150 shot

 

Awsome....thanks for the info

 

Good answer but didnt answer his Q regarding the shot level and the stock fuel pump. While Im sure 125-150 can be done on the stock pump for track days (not all the time) Id put one in for anything over 100 shot. For $100 and 30 minutes of your time why not....