Having some issues dialing in my tuning for my LLY. It received a complete makeover recently (see sig). It's smoking like crazy and hazy at idle. Some folks on the forum, and I hope they chime in, said 100's weren't hard to tune. I'm using a well known tuner but we aren't getting there after 6 revisions. Smoke output in 5th gear is constant, even on flat ground - just gets thicker as you roll in. Only cleans up (some) once I get a downshift - even then, its still pushing black smoke but much lighter level. Towed 20k up to oregon and back and there's soot all the way down the 40ft trailer. To give you an idea how much I'm talking, theres soot on my mudflap which is 6" infront of the exhaust outlet. Its just swirling around back there and basically unless I run constant 25-30PSI, its just billowing.
Where should I point him next? He's saying it might just be my truck and have to deal with it, but I'm telling you what - rolling this much smoke is obnoxious and is what gives our built engines a bad name. The less I drive it this way, the better.
He sent me a new tune with a table which should be setup for the new valley turbo, added a little timing, increased rail pressure across the board, etc. but the smoke output seems about the same. Vane position looks to be about 85% at idle up to about 1800rpm, then it dips down into the mid 50's then at 80% throttle, it was down around 6%. Seemed like as I added throttle, the vanes stayed at 85% DES. I can post my log's if anyone has interest in reading them. I'm not the one doing the tuning and the file is locked.
Where should I point him next? He's saying it might just be my truck and have to deal with it, but I'm telling you what - rolling this much smoke is obnoxious and is what gives our built engines a bad name. The less I drive it this way, the better.
He sent me a new tune with a table which should be setup for the new valley turbo, added a little timing, increased rail pressure across the board, etc. but the smoke output seems about the same. Vane position looks to be about 85% at idle up to about 1800rpm, then it dips down into the mid 50's then at 80% throttle, it was down around 6%. Seemed like as I added throttle, the vanes stayed at 85% DES. I can post my log's if anyone has interest in reading them. I'm not the one doing the tuning and the file is locked.
Latest log. Here's a video with the log:
