Drilling out the J-tube?

[LordLo]

Yeah I'll probably put a new fuel pump in, but everything was fine up until I decided to drill my J-tube. :3d_frown:

Also I don't think it's necessary to have fuel management when I'm only running 9-10 psi max. It's probably just pushing in the same amount of air as when I had my ct-26 set to 16 psi and even then with my safcii and 550cc it ran 11.5 afrs.

 

[Datsrboi]

Well my guess is that your car out of the factory was design to work with the stock 440 (I believe its 440cc) injectors. Throwing on bigger injectors just stretches the field in which the fuel is thrown into the engine. Without any thing to tune in those injectors I just think your car is dumping fuel or not putting enough at all..

Correct me if I am wrong but thats how it was with my solara. I threw on my solara stock NA supra injectors and it ran pitch rich regardless how much boost I was running. Threw on the SAFC I was able to pull back fuel.

 

[LordLo]

Well my guess is that your car out of the factory was design to work with the stock 440 (I believe its 440cc) injectors. Throwing on bigger injectors just stretches the field in which the fuel is thrown into the engine. Without any thing to tune in those injectors I just think your car is dumping fuel or not putting enough at all..

Correct me if I am wrong but thats how it was with my solara. I threw on my solara stock NA supra injectors and it ran pitch rich regardless how much boost I was running. Threw on the SAFC I was able to pull back fuel.

Yeah, that was my thinking. It would run pig rich... but ZT2 tells me otherwise.