Help Guide Me Through Tuning a Cammed LS6

[n8dogg]

I loaded the tune in, started it and let it warm up. Big improvement in idle, much smoother. Road tested it and idle seemed perfect, never dipped always stayed around 950 rpm. Still has a hard start when warmed up. I've searched through the tune to find some table for OL and CL starting and can't seem to find what I am looking for. Any ideas? Like I said, I need to put my foot down for it to start sometimes. Maybe there isn't enough air coming in...

[BLK02WS6]

Can't look at tunes here at work... I'll have to look into it tonight at home... some of the cranking and restart enrichment tables may need some work...

[n8dogg]

I think I got it. I changed the VE table while cranking closer to stock specs and slightly leaned the commanded fuel while cranking. It has been starting right up, no problem.

[n8dogg]

Current Tune File: 2001 Z06_Bret_and_Nate_Idle Adjust_0000.tun

[joecar]

Here is the calc_pids.txt file containing the CALC.DAT pid based on B4901 from the tune file posted in post #56 above...

use this calc_pids.txt file for any Z06 LS6 that does not support GM.DYNAIRTMP_DMA and that has the same B4901 values listed in this calc_pid.txt file.

[joecar]

Ok, the B4901 in the tune file in post #64 is the same as the one I put in post #65.

[wesam]

I learned a lot of things from this thread
thank you all

[n8dogg]

Can't look at tunes here at work... I'll have to look into it tonight at home... some of the cranking and restart enrichment tables may need some work...

Take a look at the new VE table VS baseline... pretty darn close, we knew that with the ultra low LTFTs.

Here is the calc_pids.txt file containing the CALC.DAT pid based on B4901 from the tune file posted in post #56 above...

use this calc_pids.txt file for any Z06 LS6 that does not support GM.DYNAIRTMP_DMA and that has the same B4901 values listed in this calc_pid.txt file.

Joe this worked great. I can't thank you enough for your quick and informative help. With out you I would have never been able to figure that one out and would have had to learn how to auto VE tune from the tutorials. Thank you so much.

I learned a lot of things from this thread
thank you all

as have I! I owe a lot to Brett and Joe.

[minytrker]

I think I got it. I changed the VE table while cranking closer to stock specs and slightly leaned the commanded fuel while cranking. It has been starting right up, no problem.

I find that most setups will start pretty good with stock cranking ve. I always try stock first and then adjust if need be.