Edelbrock Pro-Tuner, User Manual

Page: 195 / 235

Features Available with Pro option only 195
Tips for tuning:
Unlike the individual fuel maps; the individual spark tables are NOT a multiplier table.
The entered value represents a number of crankshaft degrees of timing difference from
the main spark advance map for the load/speed point. So, if no change from base
advance is desired - simply enter "0" in the cell/s. If a cylinder is slightly lazy at a
particular point, you may want to add advance by inserting a degree or two into that cell.
Conversely, if a cylinder is prone to detonation at a point, you can take away a bit of
advance by entering a small
negative number into the cell.
Be conservative. Make small incremental changes and note the effect. Never offset
cylinders before completing good base map calibrations.
It is strongly advised not to tune individual cylinders without proper
instrumentation
in place to provide tuner feedback. EGT, per cylinder O2 sensors, or
other combustion pressure analysis is recommended to measure each cylinder and its
response to map changes. Without instrumentation, you are only guessing - and could
easily cause damage to your engine!
Fuel Adapt Gain (Pro Option Only)
The rate at which the oxygen sensor adapts the Closed Loop Compensation (CLC) map
should not need to be adjusted. However, in special circumstances such as when a
extremely high output engine is on the dyno for calibration - there may be cases where
the tuner desires to adapt the CLC map faster to minimize the running time put on the
engine. The
Fuel Adapt Gain table provides this flexibility of adjustment. NOTE: This
table does NOT affect the operation or response of the closed loop control - only the rate
at which map adaptation occurs!