bigger fuel injectors?

[bloody_angel111]

i have a 96 rs, and i put a 55mm tb on my car, and at first it ran quick as hell for like a day, then it seemed to slow down a bit. and just this week i got my gauge pillar on, and my afr reads lean, so will i need bigger injectors to even it to normal, and if so, what size would i need?

 

[JKGMotosports]

Air to Fuel guages are worthless. Well, you might be a running slightly lean, but you do not need bigger fuel injectors. I am sure your fuel system is powerful enough to handle a little extra air.

 

[bloody_angel111]

well if i wanted to upgrade to even the air to fuel, what size injectors would i need, do u happen to know?

 

[JKGMotosports]

Only time you will need to increase your fuel injector size is if you are running a turbo. If you stay N/T, you will never need them.

 

[bloody_angel111]

well then what can i do to even out the a/f ratio if its running lean?

 

[redboosted97]

you are going to need some kind of air fuel controller or a chip to richen your settings. You will not need larger injectors for just a larger throttle body you just need to make the stock injectors flow a little more.

 

[herostar]

If you filled out your profile with your mods it might help us diagnose your problem better...


As far as running lean goes, if everything is hooked up right you shouldn't be running lean. The stock ecu should be compensating for the extra air that's flowing into your engine. I'd check all your sensor and make sure you don't have any vacuum leaks after the air sensor and maybe clean your injectors. Unless you're running a wideband I wouldn't trust an a/f gauge.

 

[bloody_angel111]

ok i filled out my mods list, maybe that may help u out. perhaps i will run some seafoam in the gas tank and see how that works, i ran it thru the intake mani, and it seems to be running better. maybe my fuel filter is clogged? and what air sensor r u talkin about?