im trying to figure out how to adjust my tune for the new 30lbs injectors i picked up, ion said i need to adjust the constant and the wot air/fuel. i am running at 50 psi can someone help me out

 

What brand are your 30# injectors? What fuel pressure were they flow rated at?

If they were flow rated at 43.5psi like the stock GM injectors, the flow constant at 50psi would be:

30.0 X (50/43.5)^.5 = 30 x (1.149)^.5 = 30 x 1.072 = 32.16 #/HR

If they were flow rated at 39.15psi like the FMS/SVO/etc. pintle style injectors, the flow constant at 50psi would be:

30.0 X (50/39.15)^.5 = 30 x (1.277)^.5 = 30 x 1.130 = 33.90 #/HR

 

thanks what about the wot adjusting that ion talked about?

 

I have no idea.

 

thanks guy well this isnt a issue anymore, the engine is dead!!!!!!!!!!!!!! spun a rod bearing this weekend so its time for a 383 build