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Eight cylinders and a blower.

What changes when a supercharger packs more air into a V8?

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Eight cylinders and a blower.

What changes when a supercharger packs more air into a V8?

Setting up the mechanism…

Air mass flow: 0.137kg/s
Compressor demand: 0.00kW

More

Illustrative net power: 122.84kW

Fit the components before testing.

What changes when a supercharger packs more air into a V8?

A mechanically driven compressor raises intake density, allowing more fuel to burn at the same mixture ratio. The compressor consumes shaft power, so useful power is gross combustion power minus compressor demand.

ṁ_air = ρ V_d rpm η_v/120 · P_net = P_gross−P_compressor

What this model simplifies

Supercharged Hemi-inspired 90° V8, not a dynamometer prediction. Fixed volumetric/thermal efficiencies, 14.7 mass air/fuel ratio, 44 MJ/kg fuel, 300 K intake, ideal-gas compressor with efficiency 0.65. Playback is slowed to 12% for inspection.

Read the source · eaton.com ↗

Inspired by @love4hxns’s community build ↗

Put it to work.

Use 40–80 kPa boost and exceed 100 kW illustrative net power.

Make it work.

Compare extra engine power with compressor demand.

Run

Fine adjustments 4

Engine displacementL

Crank speedrpm

Gauge boostkPa

Volumetric efficiency