oo okay. yeah my stock pump is doing fine. my air fuels are good...i dont know why my fuel pressure is though...hmm. how much was the fuel rail? cause i might end up getting one soon anyway because of boost later on.

 

im at 50psi at idle with the walbro. With the stock pump it was at 42psi at idle. I wanted to make sure i have enough psi.

 

O okay. Cool does it mess with a tune if you have one? Or just more avaible fuel later on with larger injectors

 

It will make it richer. A Few psi can make a difference in the afr.

 

That makes sense on why u have a new rail with a fpr on the fuel rail.

 

https://www.s2ki.com/forums/index.php?showt...&#entry18263171

 

spraying even at 4k puts a big load on the motor spraying nitrous I would never spray lower then that....I have mine set for 5600 on my 100 shot and vtec at 4800 ( check out my sig )...when you are racing if you can keep the car in vtec while flying through the gears then theres no need to have it come on any earlier then vtec its just extra stress that doesn't need to be