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Old 01-09-2018, 08:09 PM   #1 (permalink)
Sparkplug Hunter
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Lb7 shift defuel tuning

Bought a 03 rclb lb7 used mostly for plowing in the winter but going from a built trans lbz summer truck this thing stock doesnít cut it. Tuning it myself with the goal of low end power, with full fuel around 2400rpm, but tried many tunes and logs to get the shift defuel right, but canít get to the point Iím satisfied. Shifts good part and full throttle with stock like defuel, but if you drift or spin on snow it defuels mid shift stopping the drift and it drives me nuts. Can tune the defuel from logs to make it shift good when spinning to maintain a drift but then normal driving it either flares the shift or shifts too quick. Any suggestions?

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