set base timing

[claudiumxg]

i'm in a bit of confusion , you have both ffset and delay- delay does not apear in help menu dou you set this at a single rpm , let, say 3000 rpm and then it interpolates or you have to do this every 1000 rpm and is like a hidden table we don't see? set both offset and delay at a single rpm or more rpm values?

[Simon]

The complete electronic circuit used for ignition timing includes many delays. Signals must go through edge detection, filtering, microprocessor, ignition output circuitry, igniter circuitry and finally the coil. Each element introduces a small but significant delay (20 to 200 microseconds). In fact even the timing light used to view ignition angle has a built in delay. These delays are inherent in ALL engine managements systems and components.

At low engine speeds the time between ignition firing events is large and the effects of delays are minimal. As engine speed increases the effects of delays becomes more of a problem ultimately resulting in a slight timing retard (usually only a few degrees). This retard can be easily seen by locking the ignition timing to a constant value and increasing RPM. This effect is often referred to as reluctor retard.

The Ignition Delay setting provides compensation to offset circuit delays eliminating timing retard.

The Ignition Delay setting is not designed to correct for other problems that may effect timing stability such as mechanical shifting of trigger sensor pickup wheels (due to cam belt stretch etc...).

Setting Ignition Delay

To set up Ignition Delay perform the following steps:

 

1.	Set Ignition Delay to 0

2.	Under Triggers, Calibration, Turn Lock to Reference to ON.

3.	Using a good quality timing light, increase RPM and observe ignition retard.

4.	Increase Ignition Delay and repeat step 3 until the retard is eliminated.

[claudiumxg]

thank you,

so basically the delay is single value ,so you adjust it to maximum rpm of particular engine, as max delay, now is clear

[Cameron Moore]

Hi Fagadar,

You're pretty close there, it's more of a per RPM value. The difference is easier to notice at higher RPM so that where it's measured/adjusted. Eg there will be twice as much timing shift due to delays at 2000rpm than at 1000rpm.

-Cameron