#### TXFlyGuy

##### Well-Known Member

Here are the real world numbers from the dyno with the LS3 Hot Cam V8.

4000 rpm - 29 inches manifold pressure (WOT)

336 horsepower

440 pounds torque

28 gallons per hour fuel flow

That's .5 lbs / hour / horsepower.

Typically we see on a normally aspirated engine a BSFC value of 0.44- 0.45. This would calculate out to be around 0.85 – 0.87 lambda. On a turbo engine we may increase this upwards to 0.47- 0.52 BSFC, and that would be approx 0.82 – 0.79 lambda.

4000 rpm - 29 inches manifold pressure (WOT)

336 horsepower

440 pounds torque

28 gallons per hour fuel flow

That's .5 lbs / hour / horsepower.

Typically we see on a normally aspirated engine a BSFC value of 0.44- 0.45. This would calculate out to be around 0.85 – 0.87 lambda. On a turbo engine we may increase this upwards to 0.47- 0.52 BSFC, and that would be approx 0.82 – 0.79 lambda.

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