ok so i got i lexus afm and i am still hittin fuel cut at 12 psi now i was told that if i up my fuel pressure that i will not hit fc anymore so the question is does any one know the best pressure to run these cars around or somewhere to start i got i boost controller full 3'' exhaust port and polished cam hks metal head gasket arp head studs intake and the head has been shaved. so does anyone knows where i can start with the fuel pressure
fuel pressure
- Thread starter 877m
- Start date
What about injectors? Did you upgrade them, or are you still running the 440's? A lexus afm housing will do nothing good for you without the supporting fuel mods.
Yeah the whole reason for the Lex AFM and 550's is because it's a matched 25% increase in air and fuel, if you only do one or the other, you aren't going to be able to raise the fc, now you're only getting 25% more air, and your fuel is the same. Upgrade to 550's and you'll be set 
877m;1336909 said:
a what?
fc has nothing to do with fuel... its based on the ks signal (AFM reading). You could run 380cc injectors and the ecu wouldnt care as long as the air coming in is under a certain Hz reading...
how come no one likes fcd's wouldnt they be fine if you watch your air to fuel. and i was trying to find a way of getting around changing my injectors cuz its a bitch. how would increasing my fuel pressure help?
