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Old 04-17-2024, 07:25 AM
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I'm at the point of switching to a crank trigger and going away with the dual sync. Will be using the dual sync for cam only, would be nice if more people share specific info.

Couple references on the Holley forums that might be of help for some, figured I'd post since searching on that site is not very, um, fluid.

Synchronizing timing:

https://forums.holley.com/forum/holl...ng-Holley-EFI=

Mag & Hall effect setup:

https://forums.holley.com/forum/holl...-Sensor-Setup=

LSx 24x setup info:

https://forums.holley.com/forum/holl...ion=#post53735

Sample LSx 24 x 1 Cam setup using DIS:

LSx 24x Crank & 1x Cam "Custom" Ignition Parameters:
Ignition Type ....... - Custom
Crank Sensor Type - LSx 24 Tooth
Inductive Delay ... - 20.0 usec (← Adjust if necessary)
Timing Offset ...... - 0°
Cam Sensor Type . - Single Pulse (← Sequentially injected.)
Sensor Type ........ - Digital Falling (← Sequentially injected.)
Output Setup Type - DIS Coil on Plug
Dwell Time .......... - 3.5-5.0 msec

There's more info on that in the one thread link I posted.

Timing Offset and Reference Angle are basically the same thing. You leave your dual sync as adjusted for the 50 degree ref angle if you've already sync'd your initial timing (and cut you plug wire lengths) and use a Timing Offset value of 50. I haven't tried this yet, but I'm going to.

Different coils have different recommended dwell time values, one of those links have a link to the list. If you enter an incorrect dwell time value, it can impact timing.


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