Tuning SAFC II for big ported big 16G

[Bz98AWD]

Ok so my buddy sold me a new ported big 16g the car pulls hard i got the J pipe stock side mount stock injectors stock fuel pump... im about to put in some 525cc injectors im tryin to run my car at NOPI this weekend but the car will not launh. i have the AWD and over 3500 RPM the car will just pop and act like it has no fuel and wont go no where.... but if i slowly go off and punch it its fine..... i think my SAFC II needs to be tuned and i was wondering if n e of yall have n e reading i can program so atleast its half way tuned but mabe no perfect....thanks guys

 

[Blk_99gst]

Sorry dude, but I might rip into a bit with my answer...

First, there are steps to follow when upgrading. Looking at your profile, you do have bov and full exhaust. Good start. Next up would be the stock fuel pump, but it seems like you've passed that up for a new turbo, injectors, and a safc.

Anyway, you really need to make sure your car doesn't run out of fuel, so I highly recommend a fuel pump. Next there's nothing wrong with putting a new turbo on, what psi are you running? But at this point, you need to get some feedback device to let you know how your car is running. At the very least, you should get an "oh sh!t" egt gauge. Better than that would be a pocketlogger. With a logger you'll be able to see timing and o2 voltages, very valueable to let you know if your running out of fuel with your stock pump, or if something else is wrong.

So without ANY tuning capabilites, then you should in no way be throwing bigger injectors in and removing fuel via the safc; are you just guessing on the safc numbers? Everyone's car is different, and noone runs 525cc's, so you won't be able to get someone else's safc numbers. 90 percent of people run 550 or 660's.

So to some it up. Put the stock injectors back in. Set the safc to all zero's. Upgrade your fuel pump, and run 12psi to be on the safe side until you get some tuning feedback devices.