I just installed my turbo kit on my stock ls running 5 psi for now. My car doesnt want to start when the engines cold and when it does, its so rich it floods and cuts off. I have a safc and i know i need to ditch the piggyback but until i get paid its gonna have to do. I have 450cc injectors and a 255 lph pump with the safc set at -40% at 1000 rpm's and -35% for all the rest. It runs fine once the temp gauge rises a little. Thanks for the help and i know im gonna get flamed for the safc so dont even bother posting if your just gonna cry about it. I understand why its bad.

 

ttt

 

Wow, I can't beleive that people are still guessing their a/f ratios using vafc's and dsm injectors. Your car is obviously running pig rich, and without a wideband you are shooting in the dark.

 

get it tuned!! get crome its usually free and you can datalog. check your spark plug gap

 

You are running an safc and what ecu ?
Are you using a wideband ?

I would highly recommend you trash the afc & get your self a obd1 ecu solution.

 

I fixed it for now, Im gonna socket my ecu for crome now and call it a day.