VEC-3 Log Jagged A/F Curve

TexasPettey

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I've been getting a very jagged A/F curve. Lots of spikes and dips. Are these in the normal range of what others are seeing or should I suspect something in my setup or tune? It's a bit hard to tune the RPM curves when the A/F is that jagged. Here's my A/F and MAP sensor graph from a recent pull along with my tune parameters. This is for a N/A Gen1 with a good number of top end engine mods.



Tune5_AF-MAP.jpg



--------Tables--------
Ignition load table Fuel load table Boost load table
Volt -in_PSI Deg Volt -in_PSI ms Volt -in_PSI %
0.00 -29.7 0.0 0.00 -29.7 0.0 0.00 -29.7 00
0.16 -29.7 0.0 0.16 -29.7 0.0 0.16 -29.7 00
0.31 -22.5 0.0 0.31 -22.5 0.0 0.31 -22.5 00
0.47 -20.2 0.0 0.47 -20.2 0.0 0.47 -20.2 00
0.63 -17.8 0.0 0.63 -17.8 0.0 0.63 -17.8 00
0.78 -15.4 0.0 0.78 -15.4 0.0 0.78 -15.4 00
0.94 -13.3 0.0 0.94 -13.3 1.0 0.94 -13.3 00
1.09 -11.0 0.0 1.09 -11.0 1.0 1.09 -11.0 00
1.25 -8.6 2.5 1.25 -8.6 1.8 1.25 -8.6 00
1.41 -6.2 5.0 1.41 -6.2 2.4 1.41 -6.2 00
1.56 -3.9 5.0 1.56 -3.9 2.4 1.56 -3.9 00
1.72 -1.8 5.0 1.72 -1.8 2.4 1.72 -1.8 00
1.88 0.3 5.0 1.88 0.3 2.4 1.88 0.3 00
2.03 1.5 0.0 2.03 1.5 2.4 2.03 1.5 00
Fuel rpm table Ignition rpm table Boost rpm table
RPM % RPM % RPM %
000 00 000 00 000 00
250 00 500 00 500 00
500 00 1000 00 1000 00
750 00 1500 00 1500 00
1000 03 2000 00 2000 00
1250 11 2500 00 2500 00
1500 11 3000 09 3000 00
1750 11 3500 19 3500 00
2000 14 4000 50 4000 00
2250 16 4500 50 4500 00
2500 19 5000 19 5000 00
2750 27 5500 09 5500 00
3000 31 6000 00 6000 00
3250 33 6500 00 6500 00
3500 33 7000 00 7000 00
3750 25 7500 00 7500 00
4000 42 8000 00 8000 00
4250 58 8500 00 8500 00
4500 56 9000 00 9000 00
4750 56 9500 00 9500 00
5000 63 10000 00 10000 00
5250 58
5500 52
5750 42
6000 42
6250 33
6500 27
 
OP
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T

TexasPettey

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Quick update: I am using an Innovate LC-1 with the 'response speed' set to 'instant'. I don't want to start averaging, unless that's the right answer here.
 

SYNFULL

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My roe logs look very jagged like that. Sean say's that it is normal with the vec unless you really smooth it out.
 

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