ignition · FF-0505

What ignition timing did the naturally aspirated ARDUN test use?

26 degrees, locked. There was no vacuum or mechanical advance in the distributor, so the timing was 26 degrees at start-up and 26 degrees at 6,000 RPM. Steve says that was Don Ferguson's recommendation, and he typically follows them.

Expert

Steve Coppock

Evidence

expert attributed

Component

ignition timing

Applicable scope

Steve Coppock's ARDUN overhead valve Ford Flathead V8 dyno engine