dyno basics · FF-0580

How high was the ARDUN revved on the first dyno pulls, and how did it sound?

Asked how high these are normally turned, the answer is 55 (5,500 RPM), with 58 also mentioned. The operator says he will run to 5,500 and then make another pass, and if it tips over they will find out. On the first pulls it is said to sound like a 454 Chevy: the headers really make it bark, with four exhaust ports a side instead of the Flathead's three.

Expert

Robert King

Evidence

expert attributed

Component

first pulls and RPM limit

Applicable scope

Engine dyno session at Klein Engines, shown on Steve Coppock's naturally aspirated ARDUN Flathead