DAVIS TECHNOLOGIES Profiler, User Manual

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Profiler User Guide
4-19
Launch Timing
Set this value to the amount of timing you want for Launch.
Retard Limit
Set this value to the minimum number of degrees timing you want
the Profiler to retard from your Static Timing. Example, if static
timing is 28º and you set your Retard Limit to 18º, the Profiler can
pull out up to 10º maximum timing retard.
NOTE
: In a nitrous application, you will be pulling timing for each
nitrous kit. To calculate minimum timing, you must
ADD
your total
retard being pulled by your ignition system
PLUS
the amount of
retard you set the Profiler limit at.
EXAMPLE: If you normally run your engine with all the nitrous kits
on at 5º that only leaves you with 5º more timing to pull to get to 0,
so use caution!
Use External Retard Device
You can send the 0-5v timing signal out to an external retard device,
like a Digital 7 (7531), Lahey Command Module, or others.
More Clarification
In the example above, the crank trigger timing is
26º and the Trigger
Position
(Reference Point) is
30º
Since the
Advance Limit
was set to
30º
the Profiler will be able to
Advance timing up to
4º
.
Since the
Retard Limit
was set to
21º
the Profiler will be able to
Retard timing up to
5º
.
It is crucial you understand these settings! If not, you