Don't know nuthin about no cramps-on, but have not seen any reason to take the power wire off.Why run the powerwire when you can just add fuel as needed? It's like wearing a tampon and a kotex....
What sort of actual cyl1 spark timing at WOT do get on that heavy beast?Don't know nuthin about no cramps-on, but have not seen any reason to take the power wire off.
Got bored yesterday, and did a hard data log run, I'm 5* up on timing, and 2% up on fuel, across the board, that's on the 93 tune, and the highest I see on Kn is 1.5 and only for a split second.
On the way home I did a 0-60 run and recorded a 6.55, and the trans feels better than ever. This truck loves the DSP. :dunno:
I'll try to break this down so it makes sense.What sort of actual cyl1 spark timing at WOT do get on that heavy beast?
1-2 & 2-3 timing sound Ok, 3-4th seems bit high.I'll try to break this down so it makes sense.
Normal driving 55MPH, Cyl. 1 timing is 21.5*, Open Loop FA is 14.71
The rest of the stats are on a 1/4 mile type run.
At the 1-2 shift, timing, 27.0*, FA 12.24, at 40 MPH.
At the 2-3 shift, timing, 27.0*, FA 12.41, at 61 MPH.
At the 3-4 shift, timing, 32.0*, FA 11.11, at 85 MPH.
At the runs top speed, timing, 26*, FA 10.88, at 95 MPH.
I'm judging the shift points by the spikes on the graph, and the info is taken at the highest point just before the spike starts. Does this make sense?
Share what you find, PM me your email.1-2 & 2-3 timing sound Ok, 3-4th seems bit high.
Whats you gear tire combo and shift points?
You MPH seems to demonstrate something I haven't been able to get a good log of yet (assuming you stayed at WOT and it auto shifted to 4th at 85 mph.)
Can you email me that log file?
Open Loop F/A is about meaningless beyond telling you it's in open loop. some call it commanded A/F. it's what the pcm thinks the A/F would be but it's like in closed loop it thinks it's a constant 14.7 but really it's constantly bouncing around below and above that point. Neither reflect actual air fuel ratio. You have use a wideband to determine what the actual open loop A/F ratio is.Ok, that makes sence the tires do go up in smoke, I'll try backing the timing down 2*, what do you think of the Open Loop F/A?