Sindregutt

Hi!
Im searching around forums and stuff as we speak but im also making this thread since im really F*''ck right now.
Important event tomorrow (13 hours from now) so i have to get the car running.

Car:
Lt8s
720cc/1680cc
T66
Slightly ported

The issue is, when reving (no boost) above the stage RPM i get missfire+++ and my AFR shows 15-25
If i floor it i get missfire at once and AFR 15-25.
I had stageRPM at 2000 and it misfires above 2000, at 5000 and it missfires above 5000 etc..

Everything worked before i did these mods:
New fuel setup (catchtank and pump) Maybe debre clogging the injectors?
Zeroed the timing..

So im thinking, if the sec.inj are clogged, then it should rev to 8000 anyway? Why does it just rev to the stageing RPM?
EDIT:
So i reread the thread about staging again and now i think i know for sure how it works. Still, when the sputtering/missfire at stageRPM is going on i tried to just optMIX it maxx but then it still goes lean and then dies.

Any halp would be much aprichiated!

Thanks in advance,
Sindre

Sindregutt

Typical!! I just found the error and it was a faulty sec.2 injector.
With a lack of understanding the staging and how it works + mods to different parts of the fuel supply and ignition my troubleshooting was all wrong for 5-6 hours! DAmn...

One day i`ll learn :p