I have a brother running E85 on a cammed Regal with exactly the same mods that I have on my car in the sig. Except he has 42.5# Lucas injectors and I have 60# Siemens. We both have completely stock fuel systems besides injectors. He sees about 20 msec duty cycles in scans and I'm barely above 10 msec at the same commanded fueling. His fuel trims are near perfect and the commanded vs actual AFR is verified by wideband to be spot on.
Does anybody know when his Lucas injectors become too small for the application? I cant find much info on those injectors, especially specific to our application. I need help from someone that's been down this road before with these injectors on something like this. I'm just wondering if the injectors are nearing the non-linear end of the spectrum at 20 msec and if it's time to upgrade.
Thanks Guys!
