new stall install
This is a discussion on new stall install within the General Help forums, part of the LSx Technical Help Section category; Did the tuner compensate for the MAF mods? Porting and de-screening it altered its calibration....
06-28-2012, 02:24 PM #21
- Join Date
- Feb 2009
- Mansfield, PA
Black & Blue
- '02 WS.6 / '07 Suburban
Did the tuner compensate for the MAF mods? Porting and de-screening it altered its calibration.
06-28-2012, 03:18 PM #22
On the initial dyno run my WOT A/F ratio was 15.3:1, it was adjusted down to 13.2:1 WOT. I believe my idle A/F ratio is 14.3 or 14.4:1.
Last edited by SteveC; 06-28-2012 at 03:23 PM.
06-28-2012, 04:35 PM #23
I don't want to thread jack here but since there's kind of a tune theme going I figure someone else might take something away from it. If you're hearing ping I would want to log the car to see exactly what's going on and how much timing you're running and any knock retard you might be getting. I don't doubt the tuner....it may have been fine on the dyno but for me personally I would want that AFR a little more conservative than that. You could be getting timing pulled via knock retard and not even be aware of it. You could be losing several degrees of timing over the course of a run depending on how the knock tables were set up. I'm not saying run out and get a retune, especially if the car is running fine, but I would want to know exactly what's going on with it particularly on hot or warmer days. People tune for that AFR....it's just that I personally would want more wiggle room than that.
06-28-2012, 06:31 PM #24
I wipe the inside of my tailpipes every time I finish driving the car, and I always get a very light black carbon deposit on the paper towel, nothing major at all.
Last edited by SteveC; 06-28-2012 at 07:18 PM.
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