supercharging · FF-0477

How close was the blown ARDUN to detonation?

Right at the edge, according to Steve's computer model: even with race fuel and that boost, the software put the engine at the edge of detonation. He says nobody knows whether that is right.

Expert

Steve Coppock

Evidence

prediction

Component

detonation margin

Applicable scope

Steve Coppock's supercharged ARDUN overhead valve Flathead, 8BA block, about 289 cubic inches, with a Weiand 177 on the engine dyno at Klein Engines