well since I rebuilt the top end of my motor and adding the new spec stage 3 clutch, I added the z32 maf 370cc injectors and a aromotive FPR. I have a Safc2 controller too had it before the rebuild to controll my old 259cc. Well I have the stocl ecu. ok since the 370 are slightly 50% larger thatn the stock 180cc injectors I turn the safc down to 50% in the mid to lower rpms. Well I started to running the fuel pressure at 30psi but the car would run like **** and was not realy drivable. But I went up to 40psi and it got a little better. well now Im at 45psi and it is running but not quiet right and you can drive it but just not with any quick throttle. SO I took the plugs out and read them they are Ghost white. But im wondering more fuel pressure or what should I adjust the safc too for the lower rpms to get it to run desent to get the break in period done. Then I can get it dyno tuned.

 

anyone would like to help I know its a third gen but any help would be great.

 

1st:do you still not have a wideband if you dont GET ONE NOW why waste all this money on all this stuff and not have the right tools to get it working right

if the plugs are ghost white your runing lean you would know this if you had a wideband. going from 180s to 370s and a stock maf to z maf is a perfect jump you dont really even need a safc so just set the corection back to 0 for everything on the acf and set FP to stock and see what it runs like