So i just got my turbo project running and im tight on cash the car is a 88vert with a s4 t2 motor in it, using the na flywheel and drivetrain for now. I bought the motor used and replaced everything from short block up cleaned the injectors and found out that however had the motor before me had 460cc injectors.bummer being that i have the corksport 80mm exhaust and will probably get boost creep under load. So awhile back i purchased a fuel system from a local, came with 255 sard pump, sard fpr, and 4 800cc injectors. So my question is and i know should go stand alone but finacially i cant afford it and i wanna be safe. Do you guys think it would be a good idea to run the 800 in the sec incase of boost creep and to replace the smaller injector. the o2 sensor is stock i hope to get a wideband so i can tune but for now will the stock ecu's stft be able to handle the 800 injectors in the secondary or is this a bad idea.

 

Since you have a good fuel pump & FPR, I'd put in all 4 800cc injectors.
Adjusting the FPR should get your tune close enough to drive.
It's a hassle, but you can get the tune close by reading the plugs.

 

so you thinking hook up everything and just adjust the fuel pressure down to like maybe 19-20psi? not a bad idea, i actually have an e-manage ultimate that im planning on hooking up to see what data im missing and what sensors need replacement, but as for tuning i dont have a wide band or and egt gauges. Im just trying to get this vehicle running good to be a daily driver for the next 4-5 months after that i plan on making it a track car.

 

Wow, an e-manage - cool.
Read up on the e-manage.
I think you can run stock fuel pressure & tune with the injector pulse width.
Your stock sensors are good up to 14PSI.

Without a wideband, you're stuck with having to read the plugs.
It's a go, stop, check a leading plug, tweak the map, process over & over at progressively higher revs & loads.