supercharging · FF-0288

How much boost did the supercharged Flathead make under load?

Steve says the 290 horsepower test read 7.8 pounds of boost. With the smaller blower pulley it was about one pound more, about 8.8, for about 10 more horsepower.

Expert

Steve Coppock

Evidence

measured

Component

boost pressure

Applicable scope

Steve Coppock's supercharged 8BA-style Ford Flathead V8, about 290 cubic inches, on the engine dyno at Klein Engines