rb3 ? on nytro

[sledhead162]

powderlites rep kit i cant get enough fuel to my nytro at 12lbs it runs in the mid 13 a/f at wide open pull at 48 lbs fuel pressure with jan 17 reg map i have to turn my reg up to 55 lbs fuel to get 12.5 a/f ? can i just turn my fuel pressure up to like 60 lbs and just take fuel away at bottom end on my map to get a/f s right i wanna run 14 lbs but it just runs way to lean

 

[RACINSTATION]

You need bigger injectors my man.

 

[jehay]

You need bigger injectors my man.

x 2

 

[jehay]

powderlites sells bigger injectors i have them in mine no more fuel problems

 

[evan3000]

check your fuel reg. I had the same sort of issue on mine, and the boys at Quantum Velocity found the regulator had a bunch of air leaks on the top side of the regulator. Once they fixed the leaks they found it still wasn't running a true 2:1 so Dave sent out another regulator. It worked good for the first 30 min. and then my chain case blew up

 

[seano700]

Injectors

The bigger injectors are most definately your answer. If you keep turning up your fuel pressure the pump will become the limiting factor (thats what I was told anyway). Daves bigger injectors seem to be an improvement, the mapping available so far works best over 14 pounds. I'm running 12 pounds and the sled is pretty rich.

I see Hurricane also has an injector upgrade kit for the RB3. They use 750cc injectors and do away with the rising rate reg, I would be curious to compare the two upgrades.