I have 93 FD. when i bought the car, the car has a new engine and new greddy t78 single turbo set up. seller told me injectors, pumps and rails are stock.
when i checked PFC it shows pri550 and sec850 injectors.
heres are my questions.

should i trust what PFC says or should i take it to the shop and check the injectors?

personal reason, i want to have good gas mileage on my FD. i'm willing to lose
little bit of power.
if injectors are stock should i change them?
if injectors are what PFC said should i re-tune my car?
please give me some idea because my car runs rich. ( i can smell it)

and plus show me how to read the PFC. thank you. i don't have the manual for that.

 

Dont trust what powerfc sais because you can set any numbers you wish there

You can check the injectors by pulling ur UIM out. I dont think the seller lied. anyway a -t78 cant run on the stock injectors above (raughly)10psi

Is your fuel pump also stock?

 

Stock injectors on a T-78??? Get an aftermarket secondary rail and get some 1600cc injectors. It won't affect your gas mileage if its tuned properly. You will use more gas at full throttle though obviously but regular driving fuel comsumption will be very close.

thewird

 

YOULL just need some 1600cc with a modified rail and you should be good till 480hp

see signature I have a T-78 and with the hp im at (on the left) my injectors are at 79% (550cc/ 1600cc)



Oh and dont believe what the pfc says cause he probably doesnt know what his are too!