Hello everyone
I've just assembled my LT1 gen2 383 with trickflow 21deg heads and 231/239 .594/.606 110 LSA cam and upgraded opti to torqhead to be able to use HPtuners. Interface has arrived few days ago and I started with stock LT1. I have knowledge about engines but in the past I was mainly carburetor guy so for me this transition is not easy however just trying to read forum as much as possible to get things right.
Fist problem was no start or really rough idle as engine wanted to pour a lot of fuel into cylinders, then I have changed injectors parameters and then I used idle tuning basics presented somewhere on forum (VE table reduction up to 1200rpm) add some spark at idle etc. The engine can start now and run but it is not able to maintain desired 950rpm because it is surging a lot - I believe something is really not OK with commanded AFR is jumping from 9 to 11.2 and maybe with IAC counts are they are steady on 310 mainly (set screw on TB?)
Can anyone look briefly into log and guide me in what direction shall I go? Thanks
1MAR24 cyl volume ifr 30 VE modified.hpt02MAR24 idle draft too rich.hpl1MAR24 cyl volume ifr 30 VE modified.hpt02MAR24 idle draft too rich.hpl