hotrodder_101
New member
How are y'all tuning these things without monitoring air/fuel ratio? I'm coming from race cars so that is why I'm asking.
Well, when do you get into danger with the egts? I don't like all that smoke. If it smokes a little that's ok, but not like a freight train....
Yup, and if you can't back the fuel off, or adjust the injection timing, to get the smoke to go away to your liking, find a way to push the air in faster. With all the dodge dbags that play with efi, I think anyone with any engine background can figure out how to get a diesel to work to their liking.
And yes I will be running Gearhead's tunes in the near future! He took what should be simple to a high, near perfectionist level with his tuning.
After a certain point with the Dodges even EFI Live gets tricky to back the smoke down with big injectors. If you're trying to use Smarty UDC, well they smoke until the turbo(s) light. Duramax is easy to get clean, they're a lot more responsive to timing and fuel changes, same with the common rail PSD.
As far as tuning diesel vs. gas, it's all about timing in a diesel. Smarty as a pretty good article on the basics. http://madselectronics.com/downloadfiles/SmartyUDCsw_TuningTips.pdf
It sounds like you need a good mix between advancing the timing and egts. Is there a indication when it's advanced too much other than engine damage?