255lph or 190 lph fuel pump?

[DSMKid49]

I have a ported out 14b turbo. At 14 psi i am getting serious fuel cut and back pressure. A lot of people have told me i shouldn't be getting fuel cut at these settings, but i am. I am pretty sure i need to upgrade my fuel pump, i'm looking at a walboro but am not sure whether to get the 255lph or 190 lph. My injectors are fairly new so i dont know what else would be giving me fuel cut. Thanks.

 

[nine5raptor]

do you have any sort of fuel control on those 550's? a la afc, maft, vpc, afr??

 

[DSMSpyder99]

well if ur not gonna go bigger than the 14B get the 190 if ur gonna go bigger than a B16G get the 255

 

[RACER-X]

from what i've been told when i was experiencing fuel cut and i wanted to put in my 255 pump and get bigger injectors was that they woudl help a little but what i really need was a s-afc, and i'm sure that's probably going to help you more than the pump although the 190 and the 255 pump is always a go mod to go with. i would get the s-afc and tune you car before istalling a high fuel pump.

 

[wret]

I can’t speak from personal experience but from what I have read, it doesn’t matter how much fuel you provide, it’s how much your ECU thinks you can provide. And there’s no way to tell it you are giving it more.

So while a greater fuel supply might be needed, it won’t help the fuel cut, if that’s what you are experiencing. You either need to trick the ECU by removing honeycombs or override it with some type of fuel management system.

 

[1998GSX]

i thought it was a no no to remove honeycombs on a 2g

 

[pneumo]

it is.

Only some 2G's can get away with removing one side honeycomb.

If you're getting fuel cut at only 14 psi I would check for boost leaks.

 

[theTuner]

check for boost leaks, then go from there